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1

Grating monochromator for electron cyclotron resonance ion source operation  

SciTech Connect (OSTI)

Recently, we started to observe optical line spectra from an ECR plasma using a grating monochromator with a photomultiplier. The light intensity of line spectrum from the ECR plasma had a strong correlation with ion beam intensity measured by a magnetic mass analyzer. This correlation is a significant information for beam tuning because it allows the extraction of the desired ion species from the ECR plasma. Separation of ion species of the same charge to mass ratio with an electromagnetic mass analyzer is known to be an exceptionally complex process, but this research gives new insights into its simplification. In this paper, the grating monochromator method for beam tuning of a Hyper-ECR ion source as an injector for RIKEN azimuthal varying field (AVF) cyclotron is described.

Muto, Hideshi [Center of General Education, Tokyo University of Science, Suwa, 5000-1 Toyohira, Chino Nagano 391-0292 (Japan)] [Center of General Education, Tokyo University of Science, Suwa, 5000-1 Toyohira, Chino Nagano 391-0292 (Japan); Ohshiro, Yukimitsu; Yamaka, Shouichi; Watanabe, Shin-ichi; Yamaguchi, Hidetoshi; Shimoura, Susumu [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan)] [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan); Oyaizu, Michihiro; Kase, Masayuki [RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan)] [RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan); Kubono, Shigeru [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan) [Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Riken Campus, Wako Saitama 351-0198 (Japan); RIKEN Nishina Center for Accelerator-Based Science, Wako Saitama 351-0198 (Japan); Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000 (China); Hattori, Toshiyuki [Heavy Ion Cancer Therapy Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage Chiba 263-855 (Japan)] [Heavy Ion Cancer Therapy Center, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage Chiba 263-855 (Japan)

2013-07-15T23:59:59.000Z

2

Adaptation of UVSOR-Type Plane-Grating Monochromator in Saga  

SciTech Connect (OSTI)

The plane grating monochromator (PGM) is one of the most useful monochromators in the world. The design concept of the PGM originates from the characteristics of synchrotron radiation itself, namely parallel rays and small source size. Since the performance of the PGM depends on the beam emittance of the storage ring, it is expected that even the used PGM may be utilized in recent facility. Therefore, the UVSOR-type PGM that had been used for more than twenty years in UVSOR was adapted to the university's branch beamline in Saga-LS with several modifications. The performance tests were carried out with a photoelectron spectrometer, and the observed values were compared with the ray-tracing calculation. The results show that the adaptation of the UVSOR-type PGM is good enough to study new functional materials.

Sugiyama, H.; Takahashi, K.; Ogawa, K.; Azuma, J.; Kamada, M. [Synchrotron Light Application Center, Saga University, Saga 840-8502 (Japan)

2010-06-23T23:59:59.000Z

3

Commissioning of a Soft X-ray Beamline PF-BL-16A with a Variable-Included-Angle Varied-Line-Spacing Grating Monochromator  

SciTech Connect (OSTI)

The design and commissioning of a new soft X-ray beamline, BL-16A, at the Photon Factory is presented. The beamline consists of a pre-focusing mirror, an entrance slit, a variable-included-angle varied-line-spacing plane grating monochromator, and a post-focusing system as usual, and provides circularly and linearly polarized soft X rays in the energy range 200-1500 eV with an APPLE-II type undulator. The commissioning procedure for the beamline optics is described in detail, especially the check of the focal position for the zero-th order and diffracted X rays.

Amemiya, Kenta; Toyoshima, Akio; Kikuchi, Takashi; Kosuge, Takashi; Nigorikawa, Kazuyuki; Sumii, Ryohei; Ito, Kenji [Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2010-06-23T23:59:59.000Z

4

Monochromator Crystal Glitch Library  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

SSRL's Monochromator Crystal Glitch Library allows users to view glitch spectra online, list specific crystal orientations, and download PDF files of the glitch spectra. (Specialized Interface)

5

DOE Hydrogen Analysis Repository: Second Generation Model (SGM)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Second Generation Model (SGM) Second Generation Model (SGM) Project Summary Full Title: Second Generation Model (SGM) Project ID: 166 Principal Investigator: Roland Sands Brief Description: The SGM projects economic activity, energy consumption and greenhouse gas emissions for each region in five-year time steps from 1990 through 2050. Purpose Project economic activity, energy consumption and greenhouse gas emissions for various regions. Performer Principal Investigator: Roland Sands Organization: Pacific Northwest National Laboratory (PNNL) Address: 8400 Baltimore Avenue, JGCRI College Park, MD 20740 Telephone: 301-314-6765 Email: roland.sands@pnl.gov Project Description Type of Project: Model Category: Energy Infrastructure, Environmental, Macro-Economic User Inputs: Factor productivity growth rates by sector (9 in SGM 98) and region; capital stocks by vintage, demographic determinants (endogenous demographics), fossil and non-fossil fuel resources

6

Application of spherical gratings in synchrotron radiation spectroscopy  

SciTech Connect (OSTI)

The recent development in gracing incidence grating monochromator design is discussed and the performance limiting for such instruments are examined. Especially the aberrations of toroidal and spherical gratings are investigated using the optical path function concept. It is shown that large radius spherical gratings, which can be produced with better slope tolerances than aspherics, also yield smaller overall line curvature than toroids. Therefore, a new simple spherical grating monochromator design is proposed and its performance is analyzed.

Hogrefe, H.; Howells, M.R.; Hoyer, E.

1986-05-01T23:59:59.000Z

7

Optical system for high resolution spectrometer/monochromator  

DOE Patents [OSTI]

An optical system for use in a spectrometer or monochromator employing a mirror which reflects electromagnetic radiation from a source to converge with same in a plane is disclosed. A straight grooved, varied-spaced diffraction grating receives the converging electromagnetic radiation from the mirror and produces a spectral image for capture by a detector, target or like receiver. 11 figs.

Hettrick, M.C.; Underwood, J.H.

1988-10-11T23:59:59.000Z

8

Pulsed-neutron monochromator  

DOE Patents [OSTI]

In one aspect, the invention is an improved pulsed-neutron monochromator of the vibrated-crystal type. The monochromator is designed to provide neutron pulses which are characterized both by short duration and high density. A row of neutron-reflecting crystals is disposed in a neutron beam to reflect neutrons onto a common target. The crystals in the row define progressively larger neutron-scattering angles and are vibrated sequentially in descending order with respect to the size of their scattering angles, thus generating neutron pulses which arrive simultaneously at the target. Transducers are coupled to one end of the crystals to vibrate them in an essentially non-resonant mode. The transducers propagate transverse waves in the crystal which progress longitudinally therein. The waves are absorbed at the undriven ends of the crystals by damping material mounted thereon. In another aspect, the invention is a method for generating neutron pulses characterized by high intensity and short duration.

Mook, H.A. Jr.

1984-01-01T23:59:59.000Z

9

Pulsed-neutron monochromator  

DOE Patents [OSTI]

In one aspect, the invention is an improved pulsed-neutron monochromator of the vibrated-crystal type. The monochromator is designed to provide neutron pulses which are characterized both by short duration and high density. A row of neutron-reflecting crystals is disposed in a neutron beam to reflect neutrons onto a common target. The crystals in the row define progressively larger neutron-scattering angles and are vibrated sequentially in descending order with respect to the size of their scattering angles, thus generating neutron pulses which arrive simultaneously at the target. Transducers are coupled to one end of the crystals to vibrate them in an essentially non-resonant mode. The transducers propagate transverse waves in the crystal which progress longitudinally therein. The wave are absorbed at the undriven ends of the crystals by damping material mounted thereon. In another aspect, the invention is a method for generating neutron pulses characterized by high intensity and short duration.

Mook, Jr., Herbert A. (Oak Ridge, TN)

1985-01-01T23:59:59.000Z

10

Synchronized monochromator and insertion device energy scans at SLS  

SciTech Connect (OSTI)

Synchronous monochromator and insertion device energy scans were implemented at the Surfaces/Interfaces:Microscopy (SIM) beamline in order to provide the users fast X-ray magnetic dichroism studies (XMCD). A simple software control scheme is proposed based on a fast monochromator run-time energy readback which quickly updates the insertion device requested energy during an on-the-fly X-ray absorption scan (XAS). In this scheme the Plain Grating Monochromator (PGM) motion control, being much slower compared with the insertion device (APPLE-II type undulator), acts as a 'master' controlling the undulator 'slave' energy position. This master-slave software implementation exploits EPICS distributed device control over computer network and allows for a quasi-synchronous motion control combined with data acquisition needed for the XAS or XMCD experiment.

Krempasky, J.; Flechsig, U.; Korhonen, T.; Zimoch, D.; Quitmann, Ch.; Nolting, F. [Paul Scherrer Institut, Villigen, Swiss Light Source, 5235 Villigen PSI (Switzerland)

2010-06-23T23:59:59.000Z

11

APS high heat load monochromator  

SciTech Connect (OSTI)

This document contains the design specifications of the APS high heat load (HHL) monochromator and associated accessories as of February 1993. It should be noted that work is continuing on many parts of the monochromator including the mechanical design, crystal cooling designs, etc. Where appropriate, we have tried to add supporting documentation, references to published papers, and calculations from which we based our decisions. The underlying philosophy behind performance specifications of this monochromator was to fabricate a device that would be useful to as many APS users as possible, that is, the design should be as generic as possible. In other words, we believe that this design will be capable of operating on both bending magnet and ID beamlines (with the appropriate changes to the cooling and crystals) with both flat and inclined crystal geometries and with a variety of coolants. It was strongly felt that this monochromator should have good energy scanning capabilities over the classical energy range of about 4 to 20 keywith Si (111) crystals. For this reason, a design incorporating one rotation stage to drive both the first and second crystals was considered most promising. Separate rotary stages for the first and second crystals can sometimes provide more flexibility in their capacities to carry heavy loads (for heavily cooled first crystals or sagittal benders of second crystals), but their tuning capabilities were considered inferior to the single axis approach.

Lee, W.K.; Mills, D.

1993-02-01T23:59:59.000Z

12

Time-delay compensated monochromator for the spectral selection of extreme-ultraviolet high-order laser harmonics  

SciTech Connect (OSTI)

The design and the characterization of a monochromator for the spectral selection of ultrashort high-order laser harmonics in the extreme ultraviolet are presented. The instrument adopts the double-grating configuration to preserve the length of the optical paths of different diffracted rays, without altering the extremely short duration of the pulse. The gratings are used in the off-plane mount to have high efficiency. The performances of the monochromator have been characterized in terms of spectral response, efficiency, photon flux, imaging properties, and temporal response. In particular, the temporal characterization of the harmonic pulses has been obtained using a cross-correlation method: Pulses as short as 8 fs have been measured at the output of the monochromators, confirming the effectiveness of the time-delay compensated configuration.

Poletto, Luca; Villoresi, Paolo; Frassetto, Fabio [Laboratory for UV and X-Ray Optical Research, CNR-INFM and Department of Information Engineering, University of Padova, Padova 35131 (Italy); Calegari, Francesca; Ferrari, Federico; Lucchini, Matteo; Sansone, Giuseppe; Nisoli, Mauro [National Laboratory for Ultrafast and Ultraintense Optical Science, CNR-INFM and Department of Physics, Politecnico di Milano, Milano 20133 (Italy)

2009-12-15T23:59:59.000Z

13

Are gratings invisible?  

Science Journals Connector (OSTI)

I show that laser grating accelerators may encounter serious difficulties in operating near or even below the damage threshold caused by the formation of a dense plasma above the grating which obscures the grating shape.

Paul J. Channell

1982-01-01T23:59:59.000Z

14

High energy resolution, high angular acceptance crystal monochromator  

DOE Patents [OSTI]

A 4-bounce dispersive crystal monochromator reduces the bandpass of synchrotron radiation to a 10-50 meV range without sacrificing angular acceptance. The monochromator includes the combination of an asymmetrical channel-cut single crystal of lower order reflection and a symmetrical channel-cut single crystal of higher order reflection in a nested geometric configuration. In the disclosed embodiment, a highly asymmetrically cut (.alpha.=20) outer silicon crystal (4 2 2) with low order reflection is combined with a symmetrically cut inner silicon crystal (10 6 4) with high order reflection to condition a hard x-ray component (5-30 keV) of synchrotron radiation down to the .mu.eV-neV level. Each of the crystals is coupled to the combination of a positioning inchworm and angle encoder via a respective rotation stage for accurate relative positioning of the crystals and precise energy tuning of the monochromator.

Alp, Ercan E. (Bolingbrook, IL); Mooney, Timothy M. (Westmont, IL); Toellner, Thomas (Green Bay, WI)

1996-06-04T23:59:59.000Z

15

Investigation of pin-post monochromators for a wiggler beamline  

SciTech Connect (OSTI)

Three water-cooled pin-post monochromators, to be used on a wiggler beamline at the Advanced Photon Source (APS), were built with the heat exchanger engineered to provide very high heat transfer. The geometry of the heat exchanger as well as calculated data on the heat transfer will be presented. Before using the monochromators on the beamline, they were checked by x-ray diffraction topography. Reflections (333) and (220) in Bragg case were utilized. In all crystals, similar patterns of strain in the diffracting silicon layers were revealed, which can be attributed to the geometry of the heat exchangers, the bonding technology, and the thickness of the top layer. Conclusions about construction of future pin-post monochromators have been drawn.

Krasnicki, S.; Maj, J. [Argonne National Lab., IL (United States); Schildkamp, W. [Univ. of Chicago, IL (United States); Tonnessen, T. [Boeing North American, Albuquerque, NM (United States). Albuquerque Operations

1998-12-31T23:59:59.000Z

16

Multilayer dielectric diffraction gratings  

DOE Patents [OSTI]

The design and fabrication of dielectric grating structures with high diffraction efficiency used in reflection or transmission is described. By forming a multilayer structure of alternating index dielectric materials and placing a grating structure on top of the multilayer, a diffraction grating of adjustable efficiency, and variable optical bandwidth can be obtained. Diffraction efficiency into the first order in reflection varying between 1 and 98 percent has been achieved by controlling the design of the multilayer and the depth, shape, and material comprising the grooves of the grating structure. Methods for fabricating these gratings without the use of ion etching techniques are described.

Perry, Michael D. (Livermore, CA); Britten, Jerald A. (Oakley, CA); Nguyen, Hoang T. (Livermore, CA); Boyd, Robert (Livermore, CA); Shore, Bruce W. (Livermore, CA)

1999-01-01T23:59:59.000Z

17

Multilayer dielectric diffraction gratings  

DOE Patents [OSTI]

The design and fabrication of dielectric grating structures with high diffraction efficiency used in reflection or transmission is described. By forming a multilayer structure of alternating index dielectric materials and placing a grating structure on top of the multilayer, a diffraction grating of adjustable efficiency, and variable optical bandwidth can be obtained. Diffraction efficiency into the first order in reflection varying between 1 and 98 percent has been achieved by controlling the design of the multilayer and the depth, shape, and material comprising the grooves of the grating structure. Methods for fabricating these gratings without the use of ion etching techniques are described. 7 figs.

Perry, M.D.; Britten, J.A.; Nguyen, H.T.; Boyd, R.; Shore, B.W.

1999-05-25T23:59:59.000Z

18

Representing technology in CGE models: a comparison of SGM and AMIGA for electricity sector CO2 mitigation  

Science Journals Connector (OSTI)

The goal of this effort is to compare two climate economic models the Second Generation Model (SGM) and All Modular Industry Growth Assessment Model (AMIGA) and highlight the consequences of different modelling approaches and structures on the estimation of climate change policy results. We show that different assumptions about how technology choices are made in the US electricity sector in response to a carbon charge can lead to differences in estimates of environmental, fuel market, and economy-wide impacts. If the differences among models can be better understood, improvements in the models may be made and policy makers will be better informed by the insights provided by the models.

Michael G. Shelby; Allen A. Fawcett; O. Eric Smith; Donald A. Hanson; Ronald D. Sands

2008-01-01T23:59:59.000Z

19

Development of the Channel Cut Monochromator with Curved Reflecting Surfaces at NSRL  

SciTech Connect (OSTI)

To simplify the complicated mechanism of the traditional double crystal monochromator for synchrotron radiation, a kind of channel cut monochromator with curved reflecting surfaces to fix the exit beam position was successfully developed at NSRL. The performance of this monochromator, which includes the relative efficiency, diffraction bandwidth and deviation of the beam spot, was calculated and measured. The analysis of these results are presented in this paper.

Kang Le; Li Zhongliang; Feng Liangjie; Dong Xiaohao; Lu Lei; Zhao Feiyun; Xu Chaoyin [National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, Anhui (China)

2010-06-23T23:59:59.000Z

20

Incinerator Grate Combustion Phenomena  

Science Journals Connector (OSTI)

The predominant MSW incinerators burn wastes of a wide range of calorific values on a moving grate, without any waste preprocessing. However, in some countries, these incineration systems suffer from unfavora...

Prof. J. Swithenbank; Prof. Vida N. Sharifi

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

PERFORMANCE AND APPLICATION OF A DOUBLE CRYSTAL MONOCHROMATOR IN THE ENERGY REGION 800 < hv < 4500 eV  

E-Print Network [OSTI]

monochromator which is not UHV compatible and does not haveof this ultrahigh-vacuum (UHV) compatible constant deviationmonochromator, and (4) is UHV (~10~ torr) compatible. These

Hussain, Z.

2010-01-01T23:59:59.000Z

22

Back-scattering channel-cut high-resolution monochromator for inelastic x-ray scattering  

SciTech Connect (OSTI)

We report on a design and on some experimental results for the performance of a new high energy resolution monochromator. It is a large channel-cut Si crystal with a 197 mm separation between the two faces designed to operate in a near-backscattering regime. The device was tested as a second monochromator on Sector 3 of the Synchrotron Radiation Instrumentation Collaborative Access Team (SRI-CAT) at the Advanced Photon Source using the Si(777) reflection at a photon energy of 13.84 keV. The same monochromator can be used for other energies with reflections of the type (hhh). Special care has been taken to equalize the temperature of the two faces by employing a Peltier heat pump. A Si(111) double-crystal pre-monochromator designed to withstand the high heat load of the undulator radiation was used upstream on the beamline. The measured throughput efficiency of the Si(777) channel-cut monochromator was less ideal by a factor of 1.9. Dynamical diffraction theory was used to calculate the throughput of an ideally perfect crystal.

Kushnir, V.I.; Abbamonte, P.M.; Macrander, A.T.; Schwoerer-Boehning, M.

1997-08-01T23:59:59.000Z

23

Supersymmetric Bragg gratings  

E-Print Network [OSTI]

The supersymmetric (SUSY) structure of coupled-mode equations that describe scattering of optical waves in one-dimensional Bragg gratings is highlighted. This property can find applications to the synthesis of special Bragg filters and distributed-feedback (DFB) optical cavities. In particular, multiple SUSY (Darboux-Crum) transformations can be used to synthesize DFB filters with any desired number of resonances at target frequencies. As an example, we describe the design of a DFB structure with a set of equally-spaced resonances, i.e. a frequency comb transmission filter.

Longhi, Stefano

2015-01-01T23:59:59.000Z

24

Inclined monochromator for high heat-load synchrotron x-ray radiation  

DOE Patents [OSTI]

A double crystal monochromator is described including two identical, parallel crystals, each of which is cut such that the normal to the diffraction planes of interest makes an angle less than 90 degrees with the surface normal. Diffraction is symmetric, regardless of whether the crystals are symmetrically or asymmetrically cut, enabling operation of the monochromator with a fixed plane of diffraction. As a result of the inclination of the crystal surface, an incident beam has a footprint area which is elongated both vertically and horizontally when compared to that of the conventional monochromator, reducing the heat flux of the incident beam and enabling more efficient surface cooling. Because after inclination of the crystal only a fraction of thermal distortion lies in the diffraction plane, slope errors and the resultant misorientation of the diffracted beam are reduced. 11 figures.

Khounsary, A.M.

1994-02-15T23:59:59.000Z

25

Precision mechanical design of an UHV-compatible artificial channel-cut x-ray monochromator.  

SciTech Connect (OSTI)

A novel ultra-high-vacuum (UHV)-compatible x-ray monochromator has been designed and commissioned at the undulator beamline 8-ID-I at the Advanced Photon Source (APS) for x-ray photon correlation spectroscopy applications. To meet the challenging stability and x-ray optical requirements, the monochromator integrates two new precision angular positioning mechanisms into its crystal optics motion control system: An overconstrained weak-link mechanism that enables the positioning of an assembly of two crystals to achieve the same performance as a single channel-cut crystal, the so called 'artificial channel-cut crystal'; A ceramic motor driven in-vacuum sine-bar mechanism for the double crystal combined pitch motion. The mechanical design of the monochromator, as well as the test results of its positioning performance are presented in this paper.

Shu, D.; Narayanan, S.; Sandy, A.; Sprung, M.; Preissner, C.; Sullivan, J.; APS Engineering Support Division

2007-01-01T23:59:59.000Z

26

Thermal gradient crystals as tuneable monochromator for high energy X-rays  

SciTech Connect (OSTI)

At the high energy synchrotron radiation beamline BW5 at DORIS III at DESY a new monochromator providing broad energy bandwidth and high reflectivity is in use. On a small 10x10x5 mm{sup 3} silicon crystal scattering at the (311) reflection a thermal gradient is applied, which tunes the scattered energy bandwidth. The (311) reflection strongly suppresses the higher harmonics allowing the use of an image plate detector for crystallography. The monochromator can be used at photon energies above 60 keV.

Ruett, U.; Schulte-Schrepping, H.; Heuer, J.; Zimmermann, M. von [Hamburger Synchrotron Strahlungslabor (HASYLAB), at Deutsches Elektronensychrotron (DESY), Notkestr. 85, 22603 Hamburg (Germany)

2010-06-23T23:59:59.000Z

27

High-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

...equal to the beam current per unit area per unit solid angle per unit energy interval, CFE electron sources with their...Monochromated, spatially resolved electron energy-loss spectroscopic measurements of gold nanoparticles in the plasmon range...

2009-01-01T23:59:59.000Z

28

Design and characterization of an UHV compatible artificial channel cut monochromator.  

SciTech Connect (OSTI)

We present design and characterization results of a novel ultra-high-vacuum-compatible artificial channel-cut monochromator that has been installed at the undulator beamline 8-ID-I at the Advanced Photon Source. The monochromator has been designed to meet the challenging stability and optical requirements of the x-ray photon correlation spectroscopy program hosted at this beamline. In particular, the device incorporates a novel in-vacuum sine-bar drive mechanism for the combined pitch motion of the two crystals and a flexure-based high-stiffness weak-link mechanism for fine tuning the pitch and roll of the second crystal relative to the first crystal.

Narayanan, S.; Shu, D.; Sandy, A.; Sprung, M.; Preissner, C.; Sullivan, J.; X-Ray Science Division

2006-01-01T23:59:59.000Z

29

ANL/APS/TB-24 Diamond Monochromators for APS Undulator-A Beamlines  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 4 Diamond Monochromators for APS Undulator-A Beamlines R.C. Blasdell, L. A. Assoufid, and D. M. Mills TABLE OF CONTENTS 1. INTRODUCTION .................................................................................1 2. PHYSICAL PROPERTIES OF DIAMONDS ..................................................5 2.1 Varieties of Diamonds ....................................................................5 2.2 The Lattice Parameter .....................................................................5 2.3 Bulk Thermal and Mechanical Properties ...............................................6 2.4 Typical Surface and Lattice Plane Morphology ......................................8 2.5 The Liquid-GaIn/Diamond Interface ...................................................10 3. DIFFRACTION PROPERTIES OF DIAMOND

30

Improvement in Stability of SPring-8 Standard X-Ray Monochromators with Water-Cooled Crystals  

SciTech Connect (OSTI)

SPring-8 standard double-crystal monochromators containing water-cooled crystals were stabilized to a sufficient level to function as a part of optics components to supply stable microfocused x-ray beams, by determining causes of the instability and then removing them. The instability was caused by two factors--thermal deformation of fine stepper stages in the monochromator, which resulted in reduction in beam intensity with time, and vibrations of coolant supply units and vacuum pumps, which resulted in fluctuation in beam intensity. We remodeled the crystal holders to maintain the stage temperatures constant with water, attached x-ray and electron shields to the stages in order to prevent their warming up, introduced accumulators in the water circuits to absorb pressure pulsation, used polyurethane tubes to stabilize water flow, and placed rubber cushions under scroll vacuum pumps. As a result, the intensity reduction rate of the beam decreased from 26% to 1% per hour and the intensity fluctuation from 13% to 1%. The monochromators were also modified to prevent radiation damage to the crystals, materials used as a water seal, and motor cables.

Yamazaki, Hiroshi; Shimizu, Nobtaka; Kumasaka, Takashi; Koganezawa, Tomoyuki; Sato, Masugu; Hirosawa, Ichiro; Senba, Yasunori; Ohashi, Haruhiko; Goto, Shunji [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho, Hyogo 679-5198 (Japan); Shimizu, Yasuhiro; Miura, Takanori; Tanaka, Masayuki; Kishimoto, Hikaru; Matsuzaki, Yasuhisa [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho, Hyogo 679-5198 (Japan); SPring-8 Service Co., Ltd., 2-23-1, Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1205 (Japan); Kawano, Yoshiaki; Yamamoto, Masaki; Ishikawa, Tetsuya [RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo-cho, Hyogo 679-5148 (Japan)

2010-06-23T23:59:59.000Z

31

Gratings Inc | Open Energy Information  

Open Energy Info (EERE)

Gratings Inc Gratings Inc Jump to: navigation, search Name Gratings, Inc. Place Albuquerque, New Mexico Zip 87107 Product R&D firm that specialises in microstructural and nanostructural approaches to different challenges facing the microelectronics and power industries. Coordinates 35.08418°, -106.648639° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.08418,"lon":-106.648639,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

32

Compact Imaging Spectrometer Utilizing Immersed Gratings  

DOE Patents [OSTI]

A compact imaging spectrometer with an immersive diffraction grating that compensates optical distortions. The imaging spectrometer comprises an entrance slit for transmitting light, a system for receiving the light and directing the light, an immersion grating, and a detector array. The entrance slit, the system for receiving the light, the immersion grating, and the detector array are positioned wherein the entrance slit transmits light to the system for receiving the light and the system for receiving the light directs the light to the immersion grating and the immersion grating receives the light and directs the light through an optical element to the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR); Kuzmenko, Paul J. (Livermore, CA); Bennett, Charles L. (Livermore, CA)

2006-03-21T23:59:59.000Z

33

Electromagnetically induced grating with maximal atomic coherence  

SciTech Connect (OSTI)

We describe theoretically an atomic diffraction grating that combines an electromagnetically induced grating with a coherence grating in a double-{Lambda} atomic system. With the atom in a condition of maximal coherence between its lower levels, the combined gratings simultaneously diffract both the incident probe beam as well as the signal beam generated through four-wave mixing. A special feature of the atomic grating is that it will diffract any beam resonantly tuned to any excited state of the atom accessible by a dipole transition from its ground state.

Carvalho, Silvania A.; Araujo, Luis E. E. de [Instituto de Fisica ''Gleb Wataghin'', Universidade Estadual de Campinas, Campinas-SP, 13083-859 Sao Paulo (Brazil)

2011-10-15T23:59:59.000Z

34

A dynamic focusing x-ray monochromator for a wiggler beam line at the SRS of the SERC Daresbury Laboratory  

SciTech Connect (OSTI)

A Si(220) double-crystal monochromator for the energy range 10--30 keV is presented. It will be used for EXAFS as well as powder diffraction measurements. To determine the requirements for this monochromator we looked, apart from mean considerations, at the requirements dictated by EXAFS in transmission mode. For good data analyses the proper shape, amplitude, and location at the energy axis of each wiggle is required. Moreover it is essential to separate the wiggles from background and noise. For the latter a high flux through the sample is desirable, which can be achieved by horizontal focusing of the beam. For that we have chosen to bend the second crystal sagitally. The sagittal bending radius is adjustable between 50 and 0.8 m, because for different energies different sagittal radii are necessary to focus the beam on the sample. The mean meridional radius of the second crystal is fixed at 130 m, which is an optimization for 20 keV. The meridional radius of the first crystal can be tuned between 100 and 500 m. When this radius is set to 130 m the energy resolution is calculated to be 6, 3, and 35 eV for 10, 20, and 30 keV (for perfectly bent crystals). By changing the meridional radius of the first crystal, future users of this monochromator can make the trade off between resolution and intensity. Movement of the monochromator exit beam, during a scan, will occur due to the monochromator geometry, but is reduced as much as possible by using an asymmetrically cut second crystal, with an asymmetry angle of 2.5{degree}. The average exit beam movement of the monochromator for a 1-keV scan is 20 {mu}m. For 40% of the energy range (10--30 keV) the exit beam position remains within 10 {mu}m. For the second crystal no translation stage is used.

De Bruijn, D.; Van Zuylen, P. (TNO Institute of Applied Physics, P.O. Box 155, 2600 AD Delft (Netherlands)); Kruizinga, G. (Netherlands Organization for Scientific Research (NWO), P.O. Box 93138, 2509 AC Den Haag (Netherlands) State University of Utrecht, Sorbonnelaan 16, 3508 TB Utrecht (Netherlands))

1992-01-01T23:59:59.000Z

35

Periodic magnetic field as a polarized and focusing thermal neutron spectrometer and monochromator  

SciTech Connect (OSTI)

A novel periodic magnetic field (PMF) optic is shown to act as a prism, lens, and polarizer for neutrons and particles with a magnetic dipole moment. The PMF has a two-dimensional field in the axial direction of neutron propagation. The PMF alternating magnetic field polarity provides strong gradients that cause separation of neutrons by wavelength axially and by spin state transversely. The spin-up neutrons exit the PMF with their magnetic spins aligned parallel to the PMF magnetic field, and are deflected upward and line focus at a fixed vertical height, proportional to the PMF period, at a downstream focal distance that increases with neutron energy. The PMF has no attenuation by absorption or scatter, as with material prisms or crystal monochromators. Embodiments of the PMF include neutron spectrometer or monochromator, and applications include neutron small angle scattering, crystallography, residual stress analysis, cross section measurements, and reflectometry. Presented are theory, experimental results, computer simulation, applications of the PMF, and comparison of its performance to Stern-Gerlach gradient devices and compound material and magnetic refractive prisms.

Cremer, J. T.; Williams, D. L.; Fuller, M. J.; Gary, C. K.; Piestrup, M. A. [Adelphi Technology, Inc., 2003 East Bayshore Rd., Redwood City, California 94063 (United States); Pantell, R. H.; Feinstein, J. [Department of Electrical Engineering, Stanford University, Stanford, California 94305 (United States); Flocchini, R. G.; Boussoufi, M.; Egbert, H. P.; Kloh, M. D.; Walker, R. B. [Davis McClellan Nuclear Radiation Center, University of California, McClellan, California 95652 (United States)

2010-01-15T23:59:59.000Z

36

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

37

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

38

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

39

BEAMLINE 13-2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 2 CURRENT STATUS Open RESPONSIBLE STAFF: Dan Brehmer Hirohito Ogasawara EXPERIMENTS: Photoemission; NEXAFS (see also: Spectroscopic Techniques) SCHEDULING: BL13 Schedules Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: Elliptically polarized undulator OPTICS: M0 vertical deflecting spherical, water-cooled M2 horizontal deflecting spherical M3 vertical deflecting elliptical MONOCHROMATOR: Spherical Grating Monochromator (SGM) SLITS : 0-1000 µm. Entrance slit cooled and movable ± 200 mm along optical axis GRATINGS : 3 water-cooled interchangeable HORIZONTAL ANGULAR ACCEPTANCE : 0.25 mrad ENERGY RANGE : 300 l/mm: 150 - 400 E/DE 10000 600 l/mm: 250 - 700 E/DE 10000 1100 l/mm: 500 - 1200 E/DE 10000 SPOT SIZE : 0.01 x 0.075 mm2

40

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

42

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

43

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

44

Beamline 4.0.3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Print 3 Print High-resolution spectroscopy of complex materials (MERLIN) Endstations: MERIXS: High-resolution inelastic scattering ARPES: Angle-resolved photoemission spectroscopy GENERAL BEAMLINE INFORMATION Operational 2011 Source characteristics 9.0-cm-period quasiperiodic elliptical polarization undulator (EPU9) Energy range 9eV-120eV with current gratings Monochromator Variable-included-angle spherical grating monochromator (SGM) Calculated flux (1.9 GeV, 400 mA) 1012 photons/s/0.01%BW at 100 eV Resolving power (E/ΔE) High flux 1200 lines/mm; ~1/25,000 Endstations High-resolution inelastic scattering (MERIXS) and ARPES Characteristics Milli-Electron-volt Resolution beamLINe (MERLIN): Ultrahigh-resolution inelastic scattering and angle-resolved photoemission

45

Immersion diffractometry for determining nanoscale grating pitch  

Science Journals Connector (OSTI)

The laser diffractometer is an effective instrument for calibrating pitch standard of a grating structure. A conventional diffractometer based on the Littrow configuration cannot...

Lu, Sheng-Hua; Tseng, Li-Cheng; Kao, Ching-Fen; Pan, Shang-Peng; Chang, Liang-Chih

2006-01-01T23:59:59.000Z

46

Heat treatment for reduction of surface roughness on holographic gratings  

Science Journals Connector (OSTI)

Controlled postdevelopment heat treatment of the photoresist polymer used in the preparation of holographic gratings has been shown to enhance the diffraction efficiency of gratings...

Rabady, Rabi; Frankstein, Dmitry; Avrutsky, Ivan

2003-01-01T23:59:59.000Z

47

Pitch-variable blazed grating consisting of freestanding silicon beams  

Science Journals Connector (OSTI)

Theoretical analysis is presented for a pitch-variable blazed grating which consists of freestanding silicon beams. The pitch-variable blazed grating is implemented by combining...

Wang, Yongjin; Kanamori, Yoshiaki; Hane, Kazuhiro

2009-01-01T23:59:59.000Z

48

Compact imaging spectrometer utilizing immersed gratings  

DOE Patents [OSTI]

A compact imaging spectrometer with an immersive diffraction grating that compensates optical distortions. The imaging spectrometer comprises an entrance slit for transmitting light, means for receiving the light and directing the light, an immersion grating, and a detector array. The entrance slit, the means for receiving the light, the immersion grating, and the detector array are positioned wherein the entrance slit transmits light to the means for receiving the light and the means for receiving the light directs the light to the immersion grating and the immersion grating receives the light and directs the light to the means for receiving the light, and the means for receiving the light directs the light to the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR); Kuzmenko, Paul J. (Livermore, CA); Bennett, Charles L. (Livermore, CA)

2007-07-03T23:59:59.000Z

49

FDM Helmholtz modeling of finite grating and waveguide width effects on resonant subwavelength grating reflectivity.  

SciTech Connect (OSTI)

Resonant subwavelength gratings (RSGs) may be used as narrow-band wavelength and angular reflectors. Rigorous coupled wave analysis (RCWA) predicts 100% reflectivity at the resonant frequency of an incident plane wave from an RSG of infinite extent. For devices of finite extent or for devices illuminated with a finite beam, the peak reflectivity drops, coupled with a broadening of the peak. More complex numerical methods are required to model these finite effects. We have modeled finite devices and finite beams with a two-dimensional finite difference Helmholtz equation. The effect of finite grating aperture and finite beam size are investigated. Specific cases considered include Gaussian beam illumination of an infinite grating, Gaussian illumination of a finite grating, and plane wave illumination of an apertured grating. For a wide grating with a finite Gaussian beam, it is found that the reflectivity is an exponential function of the grating width. Likewise, for an apertured grating the reflectivity shows an exponential decay with narrowing aperture size. Results are compared to other methods, including plane wave decomposition of Gaussian beams using RCWA for the case of a finite input beam, and a semi-analytical techniques for the case of the apertured grating.

Kemme, Shanalyn A.; Peters, David William; Hadley, G. Ronald

2003-07-01T23:59:59.000Z

50

Hybrid diamond-silicon angular-dispersive x-ray monochromator with 0.25-meV energy bandwidth and high spectral efficiency  

Science Journals Connector (OSTI)

We report on the design, implementation, and performance of an x-ray monochromator with ultra-high energy resolution (?E/E ? 2.7 10?8) and...

Stoupin, S; Shvydko, Y V; Shu, D; Blank, V D; Terentyev, S A; Polyakov, S N; Kuznetsov, M S; Lemesh, I; Mundboth, K; Collins, S P; Sutter, J P; Tolkiehn, M

2013-01-01T23:59:59.000Z

51

Grating enhanced solid-state laser amplifiers  

DOE Patents [OSTI]

A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. Such an invention, as disclosed herein, uses diffraction gratings to increase gain, stored energy density, and pumping efficiency of solid-state laser gain media, such as, but not limited to rods, disks and slabs. By coupling predetermined gratings to solid-state gain media, such as crystal or ceramic laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

Erlandson, Alvin C. (Livermore, CA); Britten, Jerald A. (Clayton, CA)

2010-11-09T23:59:59.000Z

52

Electro-optic Phase Grating Streak Spectrometer  

SciTech Connect (OSTI)

The electro-optic phase grating streak spectrometer (EOPGSS) generates a time-resolved spectra equivalent to that obtained with a conventional spectrometer/streak camera combination, but without using a streak camera (by far the more expensive and problematic component of the conventional system). The EOPGSS is based on a phase, rather than an amplitude grating. Further, this grating is fabricated of electro-optic material such as, for example, KD*P, by either etching grooves into an E-O slab, or by depositing lines of the E-O material onto an optical flat. An electric field normal to the grating alters the materials index of refraction and thus affects a shift (in angle) of the output spectrum. Ramping the voltage streaks the spectrum correspondingly. The streak and dispersion directions are the same, so a second (static, conventional) grating disperses the spectrum in the orthogonal direction to prevent different wavelengths from overwriting each other. Because the streaking is done by the grating, the streaked output spectrum is recorded with a time-integrating device, such as a CCD. System model, typical design, and performance expectations will be presented.

Goldin, F. J.

2012-08-02T23:59:59.000Z

53

Grating tuned unstable resonator laser cavity  

DOE Patents [OSTI]

An unstable resonator to be used in high power, narrow line CO.sub.2 pump lasers comprises an array of four reflectors in a ring configuration wherein spherical and planar wavefronts are separated from each other along separate optical paths and only the planar wavefronts are impinged on a plane grating for line tuning. The reflector array comprises a concave mirror for reflecting incident spherical waves as plane waves along an output axis to form an output beam. A plane grating on the output axis is oriented to reflect a portion of the output beam off axis onto a planar relay mirror spaced apart from the output axis in proximity to the concave mirror. The relay mirror reflects plane waves from the grating to impinge on a convex expanding mirror spaced apart from the output axis in proximity to the grating. The expanding mirror reflects the incident planar waves as spherical waves to illuminate the concave mirror. Tuning is provided by rotating the plane grating about an axis normal to the output axis.

Johnson, Larry C. (Princeton, NJ)

1982-01-01T23:59:59.000Z

54

Fabrication and characterization of the source grating for visibility improvement of neutron phase imaging with gratings  

SciTech Connect (OSTI)

The fabrication of gratings including metal deposition processes for highly neutron absorbing lines is a critical issue to achieve a good visibility of the grating-based phase imaging system. The source grating for a neutron Talbot-Lau interferometer is an array of Gadolinium (Gd) structures that are generally made by sputtering, photo-lithography, and chemical wet etching. However, it is very challenging to fabricate a Gd structure with sufficient neutron attenuation of approximately more than 20 {mu}m using a conventional metal deposition method because of the slow Gd deposition rate, film stress, high material cost, and so on. In this article, we fabricated the source gratings for neutron Talbot-Lau interferometers by filling the silicon structure with Gadox particles. The new fabrication method allowed us a very stable and efficient way to achieve a much higher Gadox filled structure than a Gd film structure, and is even more suitable for thermal polychromatic neutrons, which are more difficult to stop than cold neutrons. The newly fabricated source gratings were tested at the polychromatic thermal neutron grating interferometer system of HANARO at the Korea Atomic Energy Research Institute, and the visibilities and images from the neutron phase imaging system with the new source gratings were compared with those fabricated by a Gd deposition method.

Kim, Jongyul [Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of); Nuclear and Quantum Engineering Department, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); Lee, Kye Hong; Lim, Chang Hwy; Kim, Taejoo [Neutron Science Division, Korea Atomic Energy Research Institute, Daejeon 305-353 (Korea, Republic of); Ahn, Chi Won [Nano Fusion Technology Division, National Nanofab Center, Daejeon 305-701 (Korea, Republic of); Cho, Gyuseong [Nuclear and Quantum Engineering Department, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); Lee, Seung Wook [School of Mechanical Engineering, Pusan National University, Pusan 609-735 (Korea, Republic of)

2013-06-15T23:59:59.000Z

55

Ultra-high density diffraction grating  

SciTech Connect (OSTI)

A diffraction grating structure having ultra-high density of grooves comprises an echellette substrate having periodically repeating recessed features, and a multi-layer stack of materials disposed on the echellette substrate. The surface of the diffraction grating is planarized, such that layers of the multi-layer stack form a plurality of lines disposed on the planarized surface of the structure in a periodical fashion, wherein lines having a first property alternate with lines having a dissimilar property on the surface of the substrate. For example, in one embodiment, lines comprising high-Z and low-Z materials alternate on the planarized surface providing a structure that is suitable as a diffraction grating for EUV and soft X-rays. In some embodiments, line density of between about 10,000 lines/mm to about 100,000 lines/mm is provided.

Padmore, Howard A.; Voronov, Dmytro L.; Cambie, Rossana; Yashchuk, Valeriy V.; Gullikson, Eric M.

2012-12-11T23:59:59.000Z

56

Nanoparticle-Enhanced Diffraction Gratings for Ultrasensitive Surface Plasmon Biosensing  

E-Print Network [OSTI]

Nanoparticle-Enhanced Diffraction Gratings for Ultrasensitive Surface Plasmon Biosensing Alastair W by the adsorption of gold nanoparticles onto gold diffraction gratings. An enhanced diffraction obtained in the grating to the localized surface plasmons in the gold nanoparticles. As a first example

57

A New Multilayer-Based Grating for Hard X-ray Grating Interferometry |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Most Detailed Picture Yet of a Key AIDS Protein The Most Detailed Picture Yet of a Key AIDS Protein Superconductivity with Stripes How HIV Infects Cells Simulating Deep Earthquakes in the Laboratory A "Sponge" Path to Better Catalysts and Energy Materials Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed A New Multilayer-Based Grating for Hard X-ray Grating Interferometry November 20, 2013 Bookmark and Share An image of the phase shift in the mouse kidney from a Bonse-Hart interferometer built utilizing the new micro-multilayer grating provides a projection view of the blood vessels. A new kind of x-ray multilayer grating that could open a pathway for high-sensitivity, hard x-ray phase contrast full-field imaging of large

58

A computational inverse diffraction grating problem  

E-Print Network [OSTI]

Mar 2, 2012 ... od and a variational (finite element) method have been developed in [3,4]. ... problems in diffractive optics, which is to design a grating structure that .... where the free-space quasiperiodic Green function is given ex- plicitly as.

2012-02-29T23:59:59.000Z

59

Design and analysis of a high heat load pin-post monochromator crystal with an integral water manifold  

SciTech Connect (OSTI)

Conventional minichannel water cooling geometry will not perform satisfactorily for x-radiation from a wiggler source at the Advanced Photon Source. For closed-gap wiggler operation, cryogenic silicon appears to be the only option for crystals in Bragg-Bragg geometry. For operation of the wiggler at more modest critical energies ({lt}17 keV), the first crystal can be cooled by a pin-post cooling scheme, using water at room temperature as a coolant. In order to limit the water consumption to 4 gpm and hence the risk of introducing vibrations to the crystal, the intensely cooled area of the crystal was matched to the footprint of the beam, leaving a less cooled area of the crystal subject to survival in a missteered beam but not to perform as a monochromator. The manifold design avoids large areas of high water pressure that would bow the crystal. We present here the design of a pin-post monochromator consisting of a four-layer silicon manifold system and an integrally bonded 39{percent} nickel-iron alloy base plate. A transparent prototype of the design will be exhibited. Fabrication techniques and design advantages will be discussed. {copyright} {ital 1996 American Institute of Physics.}

Schildkamp, W. [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States)] [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States); Tonnessen, T. [Rocketdyne Albuquerque Operations, 2511 C. Broadbent Parkway, N.E., Albuquerque, NM 87107 (United States)] [Rocketdyne Albuquerque Operations, 2511 C. Broadbent Parkway, N.E., Albuquerque, NM 87107 (United States)

1996-09-01T23:59:59.000Z

60

High-heat-load synchrotron tests of room-temperature, silicon crystal monochromators at the CHESS F-2 wiggler station  

SciTech Connect (OSTI)

This note summarizes the results of the single crystal monochromator high-heat-load tests performed at the CHESS F-2 wiggler station. The results from two different cooling geometries are presented: (1) the ``pin-post`` crystal and (2) the ``criss-cross`` crystal. The data presented were taken in August 1993 (water-cooled pin-post) and in April 1995 (water- and gallium-cooled pin-post crystal and gallium-cooled criss-cross crystal). The motivation for trying these cooling (or heat exchanger) geometries is to improve the heat transfer efficiency over that of the conventional slotted crystals. Calculations suggest that the pin-post or the microchannel design can significantly improve the thermal performance of the crystal. The pin-post crystal used here was fabricated by Rocketdyne Albuquerque Operations. From the performance of the conventional slotted crystals, it was thought that increased turbulence in the flow pattern may also enhance the heat transfer. The criss-cross crystal was a simple attempt to achieve the increased flow turbulence. The criss-cross crystal was partly fabricated in-house (cutting, etching and polishing) and bonded by RAO. Finally, a performance comparison among all the different room temperature silicon monochromators that have been tested by the APS is presented. The data includes measurements with the slotted crystal and the core-drilled crystals. Altogether, the data presented here were taken at the CHESS F-2 wiggler station between 1991 and 1995.

Lee, W.K.; Fernandez, P.B.; Graber, T.; Assoufid, L.

1995-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Fluidized bed boiler having a segmented grate  

DOE Patents [OSTI]

A fluidized bed furnace (10) is provided having a perforate grate (9) within a housing which supports a bed of particulate material including some combustibles. The grate is divided into a plurality of segments (E2-E6, SH1-SH5, RH1-RH5), with the airflow to each segment being independently controlled. Some of the segments have evaporating surface imbedded in the particulate material above them, while other segments are below superheater surface or reheater surface. Some of the segments (E1, E7) have no surface above them, and there are ignitor combustors (32, 34) directed to fire into the segments, for fast startup of the furnace without causing damage to any heating surface.

Waryasz, Richard E. (Longmeadow, MA)

1984-01-01T23:59:59.000Z

62

Compact reflective imaging spectrometer utilizing immersed gratings  

DOE Patents [OSTI]

A compact imaging spectrometer comprising an entrance slit for directing light, a first mirror that receives said light and reflects said light, an immersive diffraction grating that diffracts said light, a second mirror that focuses said light, and a detector array that receives said focused light. The compact imaging spectrometer can be utilized for remote sensing imaging spectrometers where size and weight are of primary importance.

Chrisp, Michael P. (Danville, CA)

2006-05-09T23:59:59.000Z

63

Ultrafast transient grating radiation to optical image converter  

DOE Patents [OSTI]

A high sensitivity transient grating ultrafast radiation to optical image converter is based on a fixed transmission grating adjacent to a semiconductor substrate. X-rays or optical radiation passing through the fixed transmission grating is thereby modulated and produces a small periodic variation of refractive index or transient grating in the semiconductor through carrier induced refractive index shifts. An optical or infrared probe beam tuned just below the semiconductor band gap is reflected off a high reflectivity mirror on the semiconductor so that it double passes therethrough and interacts with the radiation induced phase grating therein. A small portion of the optical beam is diffracted out of the probe beam by the radiation induced transient grating to become the converted signal that is imaged onto a detector.

Stewart, Richard E; Vernon, Stephen P; Steel, Paul T; Lowry, Mark E

2014-11-04T23:59:59.000Z

64

Imaging Spectrometer Designs Utilizing Immersed Gratings With Accessible Entrance Slit  

DOE Patents [OSTI]

A compact imaging spectrometer comprises an entrance slit, a catadioptric lens with a mirrored surface, a grating, and a detector array. The entrance slit directs light to the mirrored surface of the catadioptric lens; the mirrored surface reflects the light back through the lens to the grating. The grating receives the light from the catadioptric lens and diffracts the light to the lens away from the mirrored surface. The lens transmits the light and focuses it onto the detector array.

Chrisp, Michael P. (Danville, CA); Lerner, Scott A. (Corvallis, OR)

2006-03-21T23:59:59.000Z

65

Synthesis of all-pass filters by codirectional grating couplers  

Science Journals Connector (OSTI)

It is well known that soliton shapes result from reflectionless potentials. We propose a new technique for the synthesis of all-pass codirectional filter gratings that yields...

Peral, E; Capmany, J; Marti, J

1997-01-01T23:59:59.000Z

66

Abnormal spectral evolution of fiber Bragg gratings in hydrogenated fibers  

Science Journals Connector (OSTI)

We report the observation of abnormal spectral evolution in regenerated fiber Bragg gratings in hydrogenated BGe-codoped and standard telecom fiber with UV overexposure. The...

Liu, Y; Williams, J A R; Zhang, L; Bennion, I

2002-01-01T23:59:59.000Z

67

Enhanced type IIA gratings for high-temperature operation  

Science Journals Connector (OSTI)

The inscription of type IIA fiber Bragg gratings in standard boron-codoped germanosilicate fiber has been demonstrated to show marked differences from that reported in the literature....

Groothoff, Nathaniel; Canning, John

2004-01-01T23:59:59.000Z

68

Diffraction Gratings for High-Intensity Laser Applications  

SciTech Connect (OSTI)

The scattering of light into wavelength-dependent discrete directions (orders) by a device exhibiting a periodic modulation of a physical attribute on a spatial scale similar to the wavelength of light has been the subject of study for over 200 years. Such a device is called a diffraction grating. Practical applications of diffraction gratings, mainly for spectroscopy, have been around for over 100 years. The importance of diffraction gratings in spectroscopy for the measurement of myriad properties of matter can hardly be overestimated. Since the advent of coherent light sources (lasers) in the 1960's, applications of diffraction gratings in spectroscopy have further exploded. Lasers have opened a vast application space for gratings, and apace, gratings have enabled entirely new classes of laser systems. Excellent reviews of the history, fundamental properties, applications and manufacturing techniques of diffraction gratings up to the time of their publication can be found in the books by Hutley (1) and more recently Loewen and Popov (2). The limited scope of this chapter can hardly do justice to such a comprehensive subject, so the focus here will be narrowly limited to characteristics required for gratings suitable for high-power laser applications, and methods to fabricate them. A particular area of emphasis will be on maximally-efficient large-aperture gratings for short-pulse laser generation.

Britten, J

2008-01-23T23:59:59.000Z

69

Gratings for Increasing Solid-State Laser Gain and Efficiency  

SciTech Connect (OSTI)

We introduce new concepts for increasing the efficiency of solid state lasers by using gratings deposited on laser slabs or disks. The gratings improve efficiency in two ways: (1) by coupling out of the slab deleterious amplified spontaneous emission (ASE) and (2) by increasing the absorption efficiency of pump light. The gratings also serve as antireflective coatings for the extracting laser beam. To evaluate the potential for such coatings to improve laser performance, we calculated optical properties of a 2500 groove/mm, tantala-silica grating on a 1cm x 4cm x 8cm titanium-doped sapphire slab and performed ray-trace calculations for ASE and pump light. Our calculations show substantial improvements in efficiency due to grating ASE-coupling properties. For example, the gratings reduce pump energy required to produce a 0.6/cm gain coefficient by 9%, 20% and 35% for pump pulse durations of 0.5 {micro}s, 1{micro}s and 3{micro}s, respectively. Gratings also increase 532-nm pump-light absorption efficiency, particularly when the product slab overall absorption is small. For example, when the single-pass absorption is 1 neper, absorption efficiency increases from 66%, without gratings, to 86%, when gratings are used.

Erlandson, A C; Britten, J A; Bonlie, J D

2010-04-16T23:59:59.000Z

70

Nanoparticle diffraction gratings for DNA detection on photopatterned glass substrates  

E-Print Network [OSTI]

Sendroiu and R. M. Corn: Nanoparticle diffraction gratingsSendroiu and R. M. Corn: Nanoparticle diffraction gratingsthe principle of the nanoparticle-based DNA detection assay

Sendroiu, Luliana E; Corn, Robert M

2008-01-01T23:59:59.000Z

71

Fabrication and performance of blazed transmission gratings for x-ray astronomy  

E-Print Network [OSTI]

We have developed a new type of soft x-ray diffraction grating. This critical-angle transmission (CAT) grating combines the advantages of traditional transmission gratings (low mass, extremely relaxed alignment and flatness ...

Schattenburg, Mark Lee

72

Study on drying and combustion process in grate-CFB incinerator  

Science Journals Connector (OSTI)

The drying and combustion process in the combined grate and circulating fluidized bed (grate-CFB) municipal solid waste (MSW) incinerator was ... was proposed. A 260 t/d grate-CFB incinerator was modeled and the ...

QingHai Li; YanGuo Zhang; MeiQian Chen

2009-05-01T23:59:59.000Z

73

Planar Bragg Gratings - Fabrication and Applications from Engineering to Quantum Information  

Science Journals Connector (OSTI)

Research on planar Bragg gratings will be described including: sensors for chemical and biological materials, on the use of gratings within cantilevers and ...

Smith, Peter G

74

ON THE GAGE FACTOR FOR OPTICAL FIBER GRATING STRAIN GAGES  

E-Print Network [OSTI]

of grating and fiber types. KEY WORDS: Fiber-Optic Gratings, Fiber-Optic Sensors, Strain Gage Factor 1 theoretical background. Then, in Section 3, we discuss measurement methods followed by the experimental tests and results in Section 4, before concluding in Section 5. 2. THEORETICAL BACKGROUND Consider an FBG fabricated

Park, Yong-Lae

75

Compact Catadioptric Imaging Spectrometer Designs Utilizing Immersed Gratings  

DOE Patents [OSTI]

An imaging spectrometer comprising an entrance slit for directing light, a lens that receives said light and reflects said light, a grating that defracts said light back onto said lens which focuses said light, and a detector array that receives said focused light. In one embodiment the grating has rulings immersed into a germanium surface.

Lerner, Scott A. (Livermore, CA)

2006-02-28T23:59:59.000Z

76

Experimental results with cryogenically cooled, thin, silicon crystal x-ray monochromators on high-heat-flux beamlines  

SciTech Connect (OSTI)

A novel, silicon crystal monochromator has been designed and tested for use on undulator and focused wiggler beamlines at third-generation synchrotron sources. The crystal utilizes a thin, partially transmitting diffracting element fabricated within a liquid-nitrogen cooled, monolithic block of silicon. This report summarizes the results from performance tests conducted at the European Synchrotron Radiation Facility (ESRF) using a focused wiggler beam and at the Advanced Photon Source (APS) on an undulator beamline. These experiments indicate that a cryogenic crystal can handle the very high power and power density x-ray beams of modem synchrotrons with sub-arcsec thermal broadening of the rocking curve. The peak power density absorbed on the surface of the crystal at the ESRF exceeded go W/mm{sup 2} with an absorbed power of 166 W, this takes into account the spreading of the beam due to the Bragg angle of 11.4{degrees}. At the APS, the peak heat flux incident on the crystal was 1.5 W/mA/mm{sup 2} with a power of 6.1 W/mA for a 2.0 H x 2.5 V mm{sup 2} beam at an undulator gap of 11.1 mm and stored current up to 96 mA.

Rogers, C.S.; Mills, D.M.; Lee, W.K.; Fernandez, P.B.; Graber, T.

1996-08-01T23:59:59.000Z

77

ALS Scientists Patent Technique To Dramatically Advance Grating-Based  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Scientists Patent Technique To ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Tuesday, 29 January 2013 16:28 Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings are still produced today using the same technique. Holographic methods and ion etching are also used, but all of these techniques result in gratings that contain significant imperfections, which limits resolution. Watch a video about this topic... However, a new type of ultra-high diffraction grating recently patented by members of the ALS Experimental Systems Group (ESG), working with colleagues from Berkeley Lab's Center for X-ray Optics, stands to revolutionize the resolution capabilities of soft x-ray spectroscopy. The key to the new technique is the production of a near atomically perfect substrate, using the anisotropic etching of silicon.

78

ALS Scientists Patent Technique To Dramatically Advance Grating-Based  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Scientists Patent Technique To Dramatically ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy ALS Scientists Patent Technique To Dramatically Advance Grating-Based Spectroscopy Print Gratings - optical elements used to separate light in spectroscopy applications - have been in use since the early 19th century. Developments in the late 19th century led to the manufacture of gratings by highly precise ruling with a diamond onto a metallic surface. Many gratings are still produced today using the same technique. Holographic methods and ion etching are also used, but all of these techniques result in gratings that contain significant imperfections, which limits resolution. Watch a video about this topic... However, a new type of ultra-high diffraction grating recently patented by members of the ALS Experimental Systems Group (ESG), working with colleagues from Berkeley Lab's Center for X-ray Optics, stands to revolutionize the resolution capabilities of soft x-ray spectroscopy. The key to the new technique is the production of a near atomically perfect substrate, using the anisotropic etching of silicon.

79

Increase of the grating coupler bandwidth with a graphene overlay  

SciTech Connect (OSTI)

We present theoretical and experimental results that demonstrate an increase in the grating bandwidth by placing a graphene on the chip. A focusing subwavelength grating with coupling efficiency of ?4.3?dB and 1?dB bandwidth of ?60?nm was demonstrated. After a graphene sheet was transferred onto the chip, the maximum 1?dB bandwidth was increased to ?72?nm. Experimental results are consistent with the calculated graphene induced waveguide refractive index and dispersion changes, and the bandwidth improvement may be attributed to the reduction of grating dispersion. This study may be of interest for graphene-on-silicon photonic integrated circuit applications.

Cheng, Zhenzhou; Li, Zhen; Xu, Ke; Tsang, Hon Ki, E-mail: hktsang@ee.cuhk.edu.hk [Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin (Hong Kong)

2014-03-17T23:59:59.000Z

80

Measures to Reduce Grate Material Wear in Fixed-Bed Combustion  

Science Journals Connector (OSTI)

In a grate furnace the fuel forms a burning bed resting on a grate. ... The grate is typically sloping from the fuel inlet to the ash pit and the fuel is transported by reciprocating or vibrating movements of the grate or by adjusting the slope to allow the fuel to be transported by gravity (fixed grates). ... The symbol () is the measured temperature between the grate and the bed during burn-out of wood char(15) and the symbol (+) is the measured temperature inside a grate rod during combustion of wood chips. ...

Sven Hermansson; Henrik Thunman

2011-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Grate assembly for fixed-bed coal gasifier  

DOE Patents [OSTI]

A grate assembly for a coal gasifier of a moving-bed or fixed-bed type is provided for crushing agglomerates of solid material such as clinkers, tailoring the radial distribution of reactant gases entering the gasification reaction zone, and control of the radial distribution of downwardly moving solid velocities in the gasification and combustion zone. The clinker crushing is provided by pinching clinkers between vertically oriented stationary bars and angled bars supported on the upper surface of a rotating conical grate. The distribution of the reactant gases is provided by the selective positioning of horizontally oriented passageways extending through the grate. The radial distribution of the solids is provided by mounting a vertically and generally radially extending scoop mechanism on the upper surface of the grate near the apex thereof.

Notestein, John E. (Morgantown, WV)

1993-01-01T23:59:59.000Z

82

Design of a high index contrast arrayed waveguide grating  

E-Print Network [OSTI]

Arrayed waveguide gratings (AWGs) are useful structures for the implementation of wavelength division multiplexing. The AWG consists of an input splitter, a dispersive waveguide array which creates the wavelength demultiplexing ...

Lang, Ryan N. (Ryan Nathan)

2003-01-01T23:59:59.000Z

83

Tunable, oblique incidence resonant grating filter for telecommunications  

Science Journals Connector (OSTI)

We have designed a tunable, oblique-incidence resonant grating filter that covers the C band as an add-drop device for incident TE-polarized light. We tune the filter by tilting a...

Niederer, Guido; Herzig, Hans Peter; Shamir, Joseph; Thiele, Hans; Schnieper, Marc; Zschokke, Christian

2004-01-01T23:59:59.000Z

84

Photo-Thermal Effects in Fiber Bragg Gratings  

Science Journals Connector (OSTI)

The photo-thermal effect describes the absorption of light and a change in grating characteristics via dn/dT, which can mask fast non-linear optical effects. The effect is...

Littler, Ian C; Grujic, Thomas; Eggleton, Benjamin J

85

Compact Refractive Imaging Spectrometer Designs Utilizing Immersed Gratings  

DOE Patents [OSTI]

A compact imaging spectrometer comprising an entrance slit for directing light, a first means for receiving the light and focusing the light, an immersed diffraction grating that receives the light from the first means and defracts the light, a second means for receiving the light from the immersed diffraction grating and focusing the light, and an image plane that receives the light from the second means

Lerner, Scott A. (Livermore, CA); Bennett, Charles L. (Livermore, CA); Bixler, Jay V. (Oakland, CA); Kuzmenko, Paul J. (Livermore, CA); Lewis, Isabella T. (San Jose, CA)

2005-07-26T23:59:59.000Z

86

Image-line voltage controlled oscillators and grating antennas  

E-Print Network [OSTI]

IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Submitted to the Office of Graduate Studies of Texas ABM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1991 Major Subject: Electrical Engineering IMAGE-LINE VOLTAGE CONTROLLED OSCILLATORS AND GRATING ANTENNAS A Thesis by ALEXANDER MacDONALD KIRK Approved as to style and content by: Kai Chang (Chair of Committee) Robert D. Nevels...

Kirk, Alexander MacDonald

1991-01-01T23:59:59.000Z

87

Low efficiency gratings for 3rd harmonic diagnostics applications  

SciTech Connect (OSTI)

The baseline design of the National Ignition Facility (NIF) calls for sampling gratings to provide third-harmonic energy diagnostics in the highly constrained area of the target chamber. These 40 {times} 4O cm transmission gratings are to diffract at (order +1) nominally 0.3% of the incident 351 run light at a small angle on to a focusing mirror and into a calorimeter. The design calls for a plane grating of 500 lines/mm, and approximately 30 run deep, etched into a fused silica focusing lens and subsequently overcoated with a solgel anti reflective coating. Gratings of similar aperture and feature size have been produced for other applications by ion etching processes, but, in an effort to reduce substantially the cost of such optics, we are studying the feasibility of making these gratings by wet chemical etching techniques. Experimentation with high-quality fused silica substrates on 5 and 15 cm. scale has led to a wet etching process which can meet the design goals and which offers no significant scaleup barriers to full sized optics. The grating is produced by holographic exposure and a series of processing steps using only a photoresist mask and a final hydrofluoric acid etch. Gratings on 15 cm diameter test substrates exhibit absolute diffraction efficiencies from 0.2--0.4% with a standard deviation of about 15% of the mean over the full aperture. The efficiency variation is due to variation in linewidth caused by spatial nonuniformities in exposure energy. Uniformity improvements can be realized by using a smaller, more uniform portion of the exposure beam and exposing for longer times. The laser damage threshold for these gratings has been measured at LLNL and found to be identical to that of the fused silica substrate.

Britten, J.A.; Boyd, R.D.; Perry, M.D.; Shore, B.W.; Thomas, I.M.

1995-08-09T23:59:59.000Z

88

Use of dual-grating sensors formed by different types of fiber Bragg gratings for simultaneous temperature and strain measurements  

Science Journals Connector (OSTI)

We report on a systematic investigation of the dependence of both temperature and strain sensitivities on the fiber Bragg grating type, including the well-known Type I, Type IIA, and a...

Shu, Xuewen; Zhao, Donghui; Zhang, Lin; Bennion, Ian

2004-01-01T23:59:59.000Z

89

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 0.1 Beamline 8.0.1 Print Tuesday, 20 October 2009 08:51 Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE)

90

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

91

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

92

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

93

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

94

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

95

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

96

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3.2 Print 3.2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

97

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

98

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

99

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3.2 Print 3.2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

100

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 0.1 Beamline 8.0.1 Print Tuesday, 20 October 2009 08:51 Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE)

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

102

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

103

BEAMLINE 13-3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EXPERIMENTAL STATION 13-3 EXPERIMENTAL STATION 13-3 CURRENT STATUS Open RESPONSIBLE STAFF Bart Johnson EXPERIMENTS Soft X-ray Coherent Scattering: Resonant, Polarization-dependent; Lensless Imaging: X-ray Holography, MAD phasing; X-ray Photon Correlation Spectroscopy SCHEDULING Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE EPU, Linear and Circular Polarization MONOCHROMATOR SGM, Rowland Circle Spherical Grating 300l/mm 600l/mm 1100l/mm Energy Range 150-400eV 350-750eV 600-1200eV Entrance Slit: 5-20 microns (typical), movable along beam path Exit Slit: 30-100 microns (typical) FOCUSING OPTICS 1313M1 Spherical Mirror, Horizontal Demag. 3:1 133M2 Spherical Mirror, Vertical Demag. 3:2 Spot Size on Sample (min) 24 microns (vertical) x 240 microns (horizontal)

104

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3.2 Print 3.2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

105

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV Resolving power (E/ΔE)

106

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3.2 Print 3.2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

107

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 0.1 Beamline 10.0.1 Print Tuesday, 20 October 2009 09:08 Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV

108

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

109

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

110

Beamline 10.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 0.1 Beamline 10.0.1 Print Tuesday, 20 October 2009 09:08 Photoemission of Highly Correlated Materials; High-Resolution Atomic, Molecular, and Optical Physics Scientific disciplines: AMO, correlated electron systems Endstations: High energy resolution spectrometer (HERS) High-resolution atomic and molecular electron spectrometer (HiRAMES) HRAMO-Ion-photon beamline (IPB) Velocity map imaging spectrometer Electron spin polarization (ESP) GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 10-cm period undulator (U10) (first and third harmonics) Energy range 17-350 eV Monochromator SGM (gratings: 380, 925, 2100 lines/mm) Calculated and measured flux (1.9 GeV, 400 mA) Up to 1013 photons/s/0.01% BW at 30 eV

111

Beamline 9.3.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9.3.2 9.3.2 Beamline 9.3.2 Print Tuesday, 20 October 2009 09:06 Chemical and Materials Scientific disciplines: Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry Endstations: Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)* Ambient pressure photoemission GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Bend magnet Energy range 30-850 eV Monochromator SGM (gratings: 100, 600 lines/mm) Calculated flux (1.9 GeV, 400 mA) up to 1.5 x 1011 photons/sec, energy dependent Resolving power (E/ΔE) <10,000 Scientific disciplines Surfaces, interfaces, catalysis, environmental science, material science, electrochemistry. Endstations Ambient pressure X-ray Photoelectron Spectroscopy (APXPS)*

112

Sagittal focusing Laue monochromator  

SciTech Connect (OSTI)

An x-ray focusing device generally includes a slide pivotable about a pivot point defined at a forward end thereof, a rail unit fixed with respect to the pivotable slide, a forward crystal for focusing x-rays disposed at the forward end of the pivotable slide and a rearward crystal for focusing x-rays movably coupled to the pivotable slide and the fixed rail unit at a distance rearward from the forward crystal. The forward and rearward crystals define reciprocal angles of incidence with respect to the pivot point, wherein pivoting of the slide about the pivot point changes the incidence angles of the forward and rearward crystals while simultaneously changing the distance between the forward and rearward crystals.

Zhong; Zhong (Stony Brook, NY), Hanson; Jonathan (Wading River, NY), Hastings; Jerome (Stanford, CA), Kao; Chi-Chang (Setauket, NY), Lenhard; Anthony (Medford, NY), Siddons; David Peter (Cutchogue, NY), Zhong; Hui (Coram, NY)

2009-03-24T23:59:59.000Z

113

Town Known for First Thanksgiving Grateful for Energy Savings | Department  

Broader source: Energy.gov (indexed) [DOE]

Town Known for First Thanksgiving Grateful for Energy Savings Town Known for First Thanksgiving Grateful for Energy Savings Town Known for First Thanksgiving Grateful for Energy Savings November 22, 2011 - 3:55pm Addthis Since January, when energy efficiency improvements were made to Memorial Hall, the civic center for the Plymouth, Mass., community, the building's energy savings have been nearly $1,200 per month. | Photo courtesy of the city of Plymouth. Since January, when energy efficiency improvements were made to Memorial Hall, the civic center for the Plymouth, Mass., community, the building's energy savings have been nearly $1,200 per month. | Photo courtesy of the city of Plymouth. Chris Galm Marketing & Communications Specialist, Office of Energy Efficiency & Renewable Energy What does this project do?

114

Applications of laser-induced gratings to spectroscopy and dynamics  

SciTech Connect (OSTI)

This program has traditionally emphasized two principal areas of research. The first is the spectroscopic characterization of large-amplitude motion on the ground-state potential surface of small, transient molecules. The second is the reactivity of carbonaceous clusters and its relevance to soot and fullerene formation in combustion. Motivated initially by the desire to find improved methods of obtaining stimulated emission pumping (SEP) spectra of transients, most of our recent work has centered on the use of laser-induced gratings or resonant four-wave mixing in free-jet expansions. These techniques show great promise for several chemical applications, including molecular spectroscopy and photodissociation dynamics. The author describes recent applications of two-color laser-induced grating spectroscopy (LIGS) to obtain background-free SEP spectra of transients and double resonance spectra of nonfluorescing species, and the use of photofragment transient gratings to probe photodissociation dynamics.

Rohlfing, E.A. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

115

Silicon buried gratings for dielectric laser electron accelerators  

SciTech Connect (OSTI)

This paper describes design and simulations of dielectric laser electron accelerators that achieve Gigavolt-per-meter (GV/m) accelerating gradients and wide electron channels (>1??m). The accelerator design is based on a silicon buried grating structure that enables flexible phase synchronization, large electron channel fields, and low standing-wave ratio in the material. This design increases the accelerating gradients to more than double those of reported quartz grating accelerators, thereby reducing the input laser fluence by 60% for the same accelerating gradient. With a 100 fs pulsed laser, our silicon buried gratings can achieve a maximum gradient of 1.1 GV/m, indicating that these accelerators have potential for numerous electron-accelerator applications.

Chang, Chia-Ming, E-mail: cachang@alumni.stanford.edu [Bell Labs, Alcatel-Lucent, 791 Holmdel Road, Holmdel, New Jersey 07733 (United States); Solgaard, Olav [E. L. Ginzton Lab., Stanford University, Stanford, California 94305 (United States)

2014-05-05T23:59:59.000Z

116

Quick-scanning x-ray absorption spectroscopy system with a servo-motor-driven channel-cut monochromator with a temporal resolution of 10 ms  

SciTech Connect (OSTI)

We have developed a quick-scanning x-ray absorption fine structure (QXAFS) system and installed it at the recently constructed synchrotron radiation beamline BL33XU at the SPring-8. Rapid acquisition of high-quality QXAFS data was realized by combining a servo-motor-driven Si channel-cut monochromator with a tapered undulator. Two tandemly aligned monochromators with channel-cut Si(111) and Si(220) crystals covered energy ranges of 4.0-28.2 keV and 6.6-46.0 keV, respectively. The system allows the users to adjust instantly the energy ranges of scans, the starting angles of oscillations, and the frequencies. The channel-cut crystals are cooled with liquid nitrogen to enable them to withstand the high heat load from the undulator radiation. Deformation of the reflecting planes is reduced by clamping each crystal with two cooling blocks. Performance tests at the Cu K-edge demonstrated sufficiently high data quality for x-ray absorption near-edge structure and extended x-ray absorption fine-structure analyses with temporal resolutions of up to 10 and 25 ms, respectively.

Nonaka, T.; Dohmae, K.; Araki, T.; Hayashi, Y.; Hirose, Y. [Toyota Central R and D Labs., Inc., Nagakute, Aichi 480-1192 (Japan); Uruga, T.; Yamazaki, H.; Tanida, H.; Goto, S. [JASRI/Spring-8, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan); Mochizuki, T. [JASRI/Spring-8, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan); Toyama Corp., Zama, Kanagawa 228-0003 (Japan)

2012-08-15T23:59:59.000Z

117

A Laboratory-based Hard X-ray Monochromator for High-Resolution X-ray Emission Spectroscopy and X-ray Absorption Near Edge Structure Measurements  

E-Print Network [OSTI]

We report the development of a laboratory-based Rowland-circle monochromator that incorporates a low poer x-ray (bremsstrahlung) tube source, a spherically-bent crystal analyzer (SBCA), and an energy-resolving solid-state detector. This relatively inexpensive, introductory level instrument achieves 1-eV energy resolution for photon energies of 5 keV to 10 keV while also dmeonstrating a net efficiency previously seen only in laboratory monochromators having much coarser energy resolution. Despite the use of only a compact, air-cooled 10 W x-ray tube, we find count rates for nonresonant x-ray emission spectroscopy (XES) comparable to those achived at monochromatized spectroscopy beamlines at synchrotron light sources. For x-ray absorption near edge structure (XANES), the monochromatized flux is small (due to the use of a low-powered x-ray generator) but still useful for routine transmission-mode studies of concentrated samples. These results indicate that upgrading to a standard commercial high-powered line-foc...

Seidler, G T; Remesnik, A J; Pacold, J I; Ball, N A; Barry, N; Styczinski, M; Hoidn, O R

2014-01-01T23:59:59.000Z

118

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network [OSTI]

fiber Bragg gratings, Troutdale, OR, USA, 1996, pp. 24-in AD072 fibercore fiber, Troutdale, OR, USA, 1998, pp. 79-

Emmons, Michael

2012-01-01T23:59:59.000Z

119

Time resolved measurements of gratings photo-induced by femtosecond pulses in a  

E-Print Network [OSTI]

gratings with suppressed cladding modes made in SMF-28 with a femtosecond IR laser and a phase mask," IEEE on the formation of gratings photo-induced by femtosecond laser pulses in SF59 glass. Depending on the number. We demonstrate that the grating formation is not instantaneous and is produced by laser

Paris-Sud XI, Université de

120

Performance and application of a double-crystal monochromator in the energy region 800 less than or equal to h. nu. less than or equal to 4500 eV  

SciTech Connect (OSTI)

The performance and application of an ultra-high-vacuum compatible constant-deviation double-crystal monochromator (JUMBO) in operation at SSRL is demonstrated. The monochromator can be operated with any of four pairs of crystals interchangeable in situ. An electronic-maximum-search feedback loop optimizes the intensity of the spatially fixed outgoing beam as the photon energy is scanned. The monochromatic beam is focussed (approx. 1.5 mm x 5 mm) onto the sample by a toroidal mirror. Monochromator crystals of beryl(10 anti 10), InSb(111) and Ge(111) have been tested in the energy regions 800 to 1540 eV, 1690 to 4000 eV and 1930 to 4500 eV, respectively. The performance of these crystals with regard to the resolution, the intensity, the level of scattered light, and the contribution of higher orders have been determined. Various effects arising from a radiation-induced temperature gradient in the monochromator crystals are discussed.

Hussain, Z.; Umbach, E.; Shirley, D.A.; Stoehr, V.; Feldhaus, J.

1981-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Merged vector gratings recorded in a photocrosslinkable polymer liquid crystal film for polarimetry  

SciTech Connect (OSTI)

A merged vector grating, which is holographically fabricated in an anisotropic medium by irradiation with interference light with intensity modulation and polarization modulation, was designed to detect the polarization of light. The merged vector grating is recorded by the interference of two elliptically polarized beams with equal intensities, parallel azimuths, equal ellipticities, and different directions of rotation. We clarified theoretically that the Stokes parameters of the incident light beam are described by the diffraction efficiency of the merged vector grating. Also, to apply this property to formation of a polarimeter without any moving parts or mechanisms, two merged vector gratings with different grating vectors were recorded in a photocrosslinkable polymer liquid crystal film by angle-multiplexed holography. By investigation of the diffraction properties of the gratings obtained, we demonstrated the applicability of the merged vector gratings for use in polarimetry.

Sasaki, Tomoyuki, E-mail: sasaki-tomoy@vos.nagaokaut.ac.jp; Wada, Takumi; Noda, Kohei; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280 (Japan)

2014-01-14T23:59:59.000Z

122

A 6-beam combiner using superimposed volume index holographic gratings  

E-Print Network [OSTI]

splitter, MR: mirror, NDF: neutral density filter?????.??.44 Figure 21. The fringe patterns by interference of each pair of beams. The number below the images notes the numbers of two input beams??.46 Figure 22. Schematic diagrams of ramp... the light source is expanded and collimated, and is split into two beams. The incident angle of the reference wave is fixed and the rotation of two mirrors changes the incident angles of the object waves so that the hologram gratings have different Bragg...

Yum, HoNam

2005-11-01T23:59:59.000Z

123

Echelle grating multi-order imaging spectrometer utilizing a catadioptric lens  

DOE Patents [OSTI]

A cryogenically cooled imaging spectrometer that includes a spectrometer housing having a first side and a second side opposite the first side. An entrance slit is on the first side of the spectrometer housing and directs light to a cross-disperser grating. An echelle immersions grating and a catadioptric lens are positioned in the housing to receive the light. A cryogenically cooled detector is located in the housing on the second side of the spectrometer housing. Light from the entrance slit is directed to the cross-disperser grating. The light is directed from the cross-disperser grating to the echelle immersions grating. The light is directed from the echelle immersions grating to the cryogenically cooled detector on the second side of the spectrometer housing.

Chrisp, Michael P; Bowers, Joel M

2014-05-27T23:59:59.000Z

124

Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission  

DOE Patents [OSTI]

A tunable nanomechanical near-field grating is disclosed which is capable of varying the intensity of a diffraction mode of an optical output signal. The tunable nanomechanical near-field grating includes two sub-gratings each having line-elements with width and thickness less than the operating wavelength of light with which the grating interacts. Lateral apertures in the two sub-gratings are formed from the space between one line-element of the first sub-grating and at least one line-element of the second sub-grating. One of the sub-gratings is capable of motion such that at least one of aperture width and aperture depth changes, causing a perturbation to the near-field intensity distribution of the tunable nanomechanical near-field grating and a corresponding change to the far-field emission of thereof.

Carr, Dustin Wade (Albuquerque, NM); Bogart, Gregory Robert (Corrales, NM)

2007-02-06T23:59:59.000Z

125

Compact Reflective Imaging Spectrometer Design Utilizing An Immersed Grating And Anamorphic Mirror  

DOE Patents [OSTI]

A compact imaging spectrometer comprising an entrance slit, an anamorphic mirror, a grating, and a detector array. The entrance slit directs light to the anamorphic mirror. The anamorphic mirror receives the light and directs the light to the grating. The grating receives the light from the anamorphic mirror and defracts the light back onto the anamorphic mirror. The anamorphic mirror focuses the light onto a detector array.

Lerner, Scott A. (Corvalis, OR)

2006-01-10T23:59:59.000Z

126

Bulk photovoltaic effect and photorefractive grating formation in lithium niobate with picosecond light pulses  

Science Journals Connector (OSTI)

I investigated photorefractive grating formation in materials exhibiting the bulk photovoltaic effect on illumination with weak, very short light pulses. For a light pulse shorter...

Okamura, Hideki

2001-01-01T23:59:59.000Z

127

Thermal hypersensitisation and grating evolution in Ge-doped optical fibre  

Science Journals Connector (OSTI)

Low temperature (sub 1000C) thermal hypersensitisation is reported in germanosilicate optical waveguides. Gratings are written using a CW 266nm laser source. In contrast to laser...

Srensen, H; Canning, J; Kristensen, M

2005-01-01T23:59:59.000Z

128

Optical power transversely scattered from fiber Bragg gratings:?far-field measurements and modeling  

Science Journals Connector (OSTI)

Far-field properties of the optical power scattered from type IIA Bragg gratings photowritten within high-N.A. germanosilicate fibers have been studied under various experimental...

Pureur, D; Martinelli, G; Bernage, P; Niay, P; Douay, M; Monerie, M

1997-01-01T23:59:59.000Z

129

All-nanoparticle concave diffraction grating fabricated by self-assembly onto magnetically-recorded templates  

Science Journals Connector (OSTI)

Using the enormous magnetic field gradients present near the surface of magnetic recording media, we assemble diffraction gratings with lines consisting entirely of self-assembled...

Ye, L; Terry, B; Mefford, O T; Rinaldi, C; Crawford, T M

2013-01-01T23:59:59.000Z

130

Comparing plasmonic and dielectric gratings for absorption enhancement in thin-film organic solar cells  

Science Journals Connector (OSTI)

We theoretically investigate and compare the influence of square silver gratings and one-dimensional photonic crystal (1D PC) based nanostructures on the light absorption of organic...

Le, Khai Q; Abass, Aimi; Maes, Bjorn; Bienstman, Peter; Al, Andrea

2012-01-01T23:59:59.000Z

131

Plasmonic gratings for enhanced light-trapping in thin-film organic solar cells  

Science Journals Connector (OSTI)

We discuss optimized silver gratings to enhance absorption in organic solar cells. The enhancement is attributed to generated surface plasmon (SP) polaritons and localized SP...

Le, Khai Q; Al, Andrea

132

Broadband light absorption enhancement in polymer photovoltaics using metal nanowall gratings as transparent electrodes  

SciTech Connect (OSTI)

The authors investigate light absorption in organic solar cells in which indium tin oxide (ITO) is replaced by a new metallic architecture (grating) as a transparent electrode. Different from typical metal nanowire gratings, our gratings consist of metal nanowalls with nanoscale footprint and (sub)microscale height [Adv. Mater. 23, 2469 (2011)], thus ensuring high optical transmittance and electrical conductivity. Simulations reveal that a broadband and polarization-insensitive light absorption enhancement is achieved via two mechanisms, when such silver nanowall gratings are employed in P3HT:PCBM based solar cells. Overall absorption enhanced by ~23% compared to a reference cell with ITO electrode.

Ye, Zhuo; Chaudhary, Sumit; Kuang, Ping; Ho, Kai-Ming

2012-05-15T23:59:59.000Z

133

E-Print Network 3.0 - advanced bragg gratings Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bragg grating in the cavity... . Hellstrm, V. Pasiskevicius, and F. Laurell, "Widely tunable Yb:KYW laser with a volume Bragg ... Source: Van Stryland, Eric - School of Optics...

134

Inscription of Thermally Durable Type IIA Gratings in B/Ge-codoped Optical Fibres Using 248nm, 500fs Radiation  

Science Journals Connector (OSTI)

Results on the inscription of Type IIA Bragg gratings in B-germanosilicate fibres using 248nm, 500fs laser radiation are presented. The gratings recorded exhibit index changes ?n?10-3,...

Violakis, George; Konstantaki, Maria; Pissadakis, Stavros

135

998 JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 13, NO. 6, DECEMBER 2004 Analog Piezoelectric-Driven Tunable Gratings  

E-Print Network [OSTI]

actuation, as predicted by device modeling. The actuators demonstrate a piezo- electric 31 coefficient as "digital": for example, the Polychromator [1], the Grating Light Valve [2], the MEMS Compound Grating [3

Kim, Sang-Gook

136

Femtosecond laser-inscribed fiber Bragg gratings for strain monitoring in power cables of offshore wind turbines  

Science Journals Connector (OSTI)

A fiber Bragg grating sensor system used for monitoring the effects of strain on the power cable of an offshore wind turbine is presented. The Bragg grating structure was inscribed...

Burgmeier, Jrg; Schippers, Wolfgang; Emde, Nico; Funken, Peter; Schade, Wolfgang

2011-01-01T23:59:59.000Z

137

The Constellation-X RGS options: Raytrace Modeling of the Off-plane Gratings  

E-Print Network [OSTI]

The Constellation-X RGS options: Raytrace Modeling of the Off-plane Gratings K.A. Flanagan, J The Reflection Grating Spectrometer of the Constellation-X mission has two strong candidate configurations resolving powers in excess of 1000 (defined with half-energy width) are achievable for sufficiently long

138

Shaping of Thin Grazing-Incidence Reflection Grating Substrates via Magnetorheological Finishing  

E-Print Network [OSTI]

for sub-arcsecond reflection optics. Keywords: x-ray optics, Constellation-X, reflection gratings, thin, such as Constellation-X,1 rely on grazing-incidence reflection gratings to provide the necessary high diffraction efficiency and dispersion for soft x-ray photons in the energy range of approximately 0.25 - 2.0 keV (0.6 - 5

139

Optimizing and characterizing grating efficiency for a soft X-ray emission spectrometer  

Science Journals Connector (OSTI)

The efficiency of soft X-ray diffraction gratings is examined using theoretical calculations with new open-source software, and insights to design a high-performance emission spectrometer are applied. The calculated and measured efficiencies of real-world gratings are compared, and discrepancies are explained by incorporating real-world effects into the calculations.

Boots, M.

2013-02-06T23:59:59.000Z

140

EDFA Gain Flattening Using Long-Period Fibre Gratings Based on the Electric Arc Technique  

E-Print Network [OSTI]

of new stresses during the electric arc discharges as the main mechanism for their formation [5]. #12EDFA Gain Flattening Using Long-Period Fibre Gratings Based on the Electric Arc Technique O. Frazão of the long-period fibre grating is based on the electric arc technique. 1. Introduction. The gain flattening

Haddadi, Hamed

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical  

E-Print Network [OSTI]

Plasmonic backcontact grating for P3HT:PCBM organic solar cells enabling strong optical absorption organic solar cells we propose and demonstrate numerically plasmonic backcontact grating architectures. Simon, L. Escoubas, P. Torchio, J. L. Rouzo, and S. Vedraine, "Light harvesting in organic solar cells

Demir, Hilmi Volkan

142

Study on Characteristics of Ultra-Long-Period Fiber Gratings Written by High-Frequency CO2 Laser Pulses  

Science Journals Connector (OSTI)

A novel ultra-long-period fiber grating with periods of up to several millimeters induced by high-frequency

Zhu, Tao; Rao, Yunjiang; Mo, Qiu-Ju

143

A simple scanning spectrometer based on a stretchable elastomeric reflective grating  

SciTech Connect (OSTI)

We report a scanning optical spectrometer based on the use of a stretchable elastomeric reflective grating. The grating is obtained by supersonic cluster beam implantation of silver nanoparticles on polydimethylsiloxane previously grooved by molding to create a replica of a commercial digital versatile disk grating. The use of a stretchable grating allows the spectrometer spanning the whole optical wavelength range by solely extending the diffraction element by more than 100% of its original dimensions. The stretchable reflective optical grating shows excellent performances and stability upon thousands of stretching cycles. The use of this elastomeric element makes the optical layout and the mechanics of the spectrometer extremely simple and advantageous for those applications where spectral resolution is not a major requirement. As a proof of principle, we present the absorption spectrum of Rhodamine B in solution obtained by our spectrometer and compared to commercial instruments.

Ghisleri, C.; Milani, P., E-mail: paolo.milani@mi.infn.it [CIMAINA and Dipartimento di Fisica, Universit di Milano, via Celoria 16, 20133 Milano (Italy); WISE srl, Piazza Duse 2, 20122 Milano (Italy); Potenza, M. A. C.; Bellacicca, A. [CIMAINA and Dipartimento di Fisica, Universit di Milano, via Celoria 16, 20133 Milano (Italy); Ravagnan, L. [WISE srl, Piazza Duse 2, 20122 Milano (Italy)

2014-02-10T23:59:59.000Z

144

Flexible organic solar cells including efficiency enhancing grating structures  

Science Journals Connector (OSTI)

In this work, a new method for the fabrication of organic solar cells containing functional light-trapping nanostructures on flexible substrates is presented. Polyimide is spin-coated on silicon support substrates, enabling standard micro- and nanotechnology fabrication techniques, such as photolithography and electron-beam lithography, besides the steps required for the bulk-heterojunction organic solar cell fabrication. After the production steps, the solar cells on polyimide are peeled off the silicon support substrates, resulting in flexible devices containing nanostructures for light absorption enhancement. Since the solar cells avoid using brittle electrodes, the performance of the flexible devices is not affected by the peeling process. We have investigated three different nanostructured grating designs and conclude that gratings with a 500?nm pitch distance have the highest light-trapping efficiency for the selected active layer material (P3HT:PCBM), resulting in an enhancement of about 34% on the solar cell efficiency. The presented method can be applied to a large variety of flexible nanostructured devices in future applications.

Roana Melina de Oliveira Hansen; Yinghui Liu; Morten Madsen; Horst-G?nter Rubahn

2013-01-01T23:59:59.000Z

145

Transmission Grating Spectrometer for Constellation-X White paper response to NASA solicitation 210S-GBG-06-001  

E-Print Network [OSTI]

1 Transmission Grating Spectrometer for Constellation-X White paper response to NASA solicitation proposes a transmission grating spectrometer to provide high spectral resolution at low energies, extending down below 0.2 keV. The transmission grating is blazed, concentrating the energy among a single set

Heilmann, Ralf

146

2346 IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 17, NO. 11, NOVEMBER 2005 Polarization Properties of Long-Period Gratings  

E-Print Network [OSTI]

-photon absorption mechanism. Due to energy deposition in the fiber cladding, such gratings are similar to those fabricated by CO2 laser induced heating, mechanical pres- sure, or electric arc. We found that these gratings exhibit significant polarization properties. Index Terms--Gratings, laser excitation, neodimiun : glass

Nikogosyan, David N.

147

Mathematical Modeling and Experimental Study of Biomass Combustion in a Thermal 108 MW Grate-Fired Boiler  

E-Print Network [OSTI]

Mathematical Modeling and Experimental Study of Biomass Combustion in a Thermal 108 MW Grate, the noncontinuous biomass feeding and grate movement, the combustion instabilities inside the fuel bed used to fire biomass for heat and power production. However, grate-firing systems are often reported

Rosendahl, Lasse

148

High efficiency multilayer blazed gratings for EUV and soft X-rays: Recent developments  

SciTech Connect (OSTI)

Multilayer coated blazed gratings with high groove density are the best candidates for use in high resolution EUV and soft x-ray spectroscopy. Theoretical analysis shows that such a grating can be potentially optimized for high dispersion and spectral resolution in a desired high diffraction order without significant loss of diffraction efficiency. In order to realize this potential, the grating fabrication process should provide a perfect triangular groove profile and an extremely smooth surface of the blazed facets. Here we report on recent progress achieved at the Advanced Light Source (ALS) in fabrication of high quality multilayer coated blazed gratings. The blazed gratings were fabricated using scanning beam interference lithography followed by wet anisotropic etching of silicon. A 200 nm period grating coated with a Mo/Si multilayer composed with 30 bi-layers demonstrated an absolute efficiency of 37.6percent in the 3rd diffraction order at 13.6 nm wavelength. The groove profile of the grating was thoroughly characterized with atomic force microscopy before and after the multilayer deposition. The obtained metrology data were used for simulation of the grating efficiency with the vector electromagnetic PCGrate-6.1 code. The simulations showed that smoothing of the grating profile during the multilayer deposition is the main reason for efficiency losses compared to the theoretical maximum. Investigation of the grating with cross-sectional transmission electron microscopy revealed a complex evolution of the groove profile in the course of the multilayer deposition. Impact of the shadowing and smoothing processes on growth of the multilayer on the surface of the sawtooth substrate is discussed.

Voronov, Dmitriy; Ahn, Minseung; Anderson, Erik; Cambie, Rossana; Chang, Chih-Hao; Goray, Leonid; Gullikson, Eric; Heilmann, Ralf; Salmassi, Farhad; Schattenburg, Mark; Warwick, Tony; Yashchuk, Valeriy; Padmore, Howard

2011-07-26T23:59:59.000Z

149

Nanomechanical near-field grating apparatus and acceleration sensor formed therefrom  

DOE Patents [OSTI]

A nanomechanical near-field grating device is disclosed which includes two sub-gratings vertically spaced by a distance less than or equal to an operating wavelength. Each sub-grating includes a plurality of line-elements spaced apart by a distance less than or equal to the operating wavelength. A light source (e.g., a VCSEL or LED) can provide light at the operating wavelength for operation of the device. The device can operate as an active grating, with the intensity of a reflected or transmitted portion of the light varying as the relative positions of the sub-gratings are controlled by an actuator. The device can also operate as a passive grating, with the relative positions of the sub-gratings changing in response to an environmentally-induced force due to acceleration, impact, shock, vibration, gravity, etc. Since the device can be adapted to sense an acceleration that is directed laterally or vertically, a plurality of devices can be located on a common substrate to form a multi-axis acceleration sensor.

Carr, Dustin Wade (Albuquerque, NM); Bogart, Gregory Robert (Corrales, NM); Keeler, Bianca E. N. (Albuquerque, NM)

2008-03-04T23:59:59.000Z

150

High-efficiency, dielectric multilayer gratings optimized for manufacturability and laser damage threshold  

SciTech Connect (OSTI)

Ultrashort pulse, high-intensity lasers offer new opportunities for the study of light-matter interaction and for inertial confinement fusion. A 100 Terawatt laser operating 400 fs and 1.053 {mu}m is operational at LLNL, and a 1000 Terawatt (Petawatt) laser will come online in early 1996. These lasers use large-aperture (40 cm and 94 cm diameter, respectively) diffraction gratings to compress the amplified laser pulse. At present, hologrphically produced, gold overcoated photoresist gratings are used: these gratings represent the fuse in the laser chain. Higher laser damage thresholds and higher diffraction efficiencies are theoretically possible with multilayer dielectric gratings (MDG`s). A number of design parameters regarding both the multilayer stack and the etched grating structure can be optimized to maximize the laser damage threshold and also improve the processing latitude for the interference lithography and reactive ion etching steps used during manufacture of these gratings. This paper presents model predictions for the behavior of hafnia/silica MDG`s both during processing and in operation, and presents experimental data on the diffraction efficiency and short- pulse laser damage threshold for optimized witness gratings.

Britten, J.A.; Perry, M.D.; Shore, B.W.; Boyd, R.D.; Loomis, G.E.; Chow, R.

1995-11-29T23:59:59.000Z

151

Improvement of Laser Damage Resistance and Diffraction Efficiency of Multilayer Dielectric Diffraction Gratings by HF-Etchback Linewidth Tailoring  

SciTech Connect (OSTI)

Multilayer dielectric (MLD) diffraction gratings for Petawatt-class laser systems possess unique laser damage characteristics. Details of the shape of the grating lines and the concentration of absorbing impurities on the surface of the grating structures both have strong effects on laser damage threshold. It is known that electric field enhancement in the solid material comprising the grating lines varies directly with the linewidth and inversely with the line height for equivalent diffraction efficiency. Here, they present an overview of laser damage characteristics of MLD gratings, and describe a process for post-processing ion-beam etched grating lines using very dilute buffered hydrofluoric acid solutions. This process acts simultaneously to reduce grating linewidth and remove surface contaminants, thereby improving laser damage thresholds through two pathways.

Nguyen, H T; Larson, C C; Britten, J A

2010-10-28T23:59:59.000Z

152

Second-order Bragg gratings in single-mode chalcogenide fibres  

SciTech Connect (OSTI)

Bragg gratings with a second-order resonance wavelength in the near-IR spectral region have been inscribed into single-mode chalcogenide (As{sub 2}S{sub 3}) glass fibre by a He - Ne laser beam using a configuration typical of Bragg grating fabrication in germanosilicate fibre, with the use of a phase mask that ensures effective diffraction of the writing light into the +1 and -1 orders. The spectra of the inscribed gratings show no resonances due to cladding mode excitation because the cladding material is photosensitive. (fibre optics)

Bernier, M; Asatryan, K E; Vallee, R; Galstian, T M; Vasil'ev, Sergei A; Medvedkov, O I; Plotnichenko, V G; Gnusin, P I; Dianov, Evgenii M

2011-05-31T23:59:59.000Z

153

Microfabrication of Optically Flat Silicon Micro-Mirrors for Fully Programmable Micro-Diffraction Gratings  

E-Print Network [OSTI]

We have fabricated and characterized a Fully Programmable Micro-Diffraction Grating (FPMDG) with 64 silicon micro-mirrors for spectral shaping in the visible and near-infrared wavelength range. The FPMDG arrays of 50 ?m ...

Timotijevic, B.

2012-01-01T23:59:59.000Z

154

Small blaze angle gratings with various surface treatments for use in the extreme ultraviolet  

Science Journals Connector (OSTI)

Three replica gratings were made from a single master; two were epoxy overcoated with different thicknesses of gold, and one was replicated directly in gold. Their performance in EUV...

Miller, Anne; Jelinsky, Patrick; Bowyer, Stuart; Welsh, Barry Y

1989-01-01T23:59:59.000Z

155

High-order diffraction gratings for high-power semiconductor lasers  

SciTech Connect (OSTI)

A deep diffraction grating with a large period ({approx}2 {mu}m) within one of the cladding layers is proposed for the implementation of selective feedback in a semiconductor laser. Frequency dependences of reflectance in the 12th diffraction order for rectangular, triangular, and trapezoidal diffraction gratings are calculated. It is shown that the maximum reflectance of the waveguide mode is attained using a rectangular or trapezoidal grating {approx}2 {mu}m deep in the laser structure. Deep trapezoidal diffraction gratings with large periods are fabricated in the Al{sub 0.3}Ga{sub 0.7}As cladding layer of a GaAs/AlGaAs laser structure using photolithography and reactive ion etching.

Vasil'eva, V. V.; Vinokurov, D. A.; Zolotarev, V. V.; Leshko, A. Yu.; Petrunov, A. N.; Pikhtin, N. A.; Rastegaeva, M. G.; Sokolova, Z. N., E-mail: Zina.Sokolova@mail.ioffe.ru; Shashkin, I. S.; Tarasov, I. S. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation)

2012-02-15T23:59:59.000Z

156

Simulation of Energy Conversion Efficiency of a Solar Cell with Gratings  

Science Journals Connector (OSTI)

In this work, a numerical analysis of a CIGS (CuIn1-xGaxSex) solar cell with a rectangular grating on the electrode is presented. The effects of...

Kim, Sung-Chul; Sohn, In-Soo

2010-01-01T23:59:59.000Z

157

A Soft X-ray Spectrometer using a Highly Dispersive Multilayer Grating  

SciTech Connect (OSTI)

There is a need for higher resolution spectrometers as a tool for inelastic x-ray scattering. Currently, resolving power around R = 10,000 is advertised. Measured RIXS spectra are often limited by this instrumental resolution and higher resolution spectrometers using conventional gratings would be prohibitively large. We are engaged in a development program to build blazed multilayer grating structures for diffracting soft x-rays in high order. This leads to spectrometers with dispersion much higher than is possible using metal coated-gratings. The higher dispersion then provides higher resolution and the multilayer gratings are capable of operating away from grazing incidence as required. A spectrometer design is presented with a total length 3.8 m and capable of 10{sup 5} resolving power.

Warwick, Tony; Padmore, Howard; Voronov, Dmitriy; Yashchuk, Valeriy [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA94720 (United States)

2010-06-23T23:59:59.000Z

158

Energy Exchange between Light Waves on Local Photorefractive Grating in a Cubic Gyrotropic Crystal  

Science Journals Connector (OSTI)

Steady-state two-wave interaction on a local photorefractive grating formed in a cubic gyrotropic crystal with applied constant electric field is considered. The analytical solution is...

Litvinov, R V

159

Elimination of higher-order diffraction using zigzag transmission grating in soft x-ray region  

SciTech Connect (OSTI)

We present a realization of the sinusoidal transmission function using a series of zigzag-profiled strips where the transmission takes on the binary values 0 and 1 in a two-dimensional distribution. A zigzag transmission grating of 1000 line/mm has been fabricated and demonstrated on the soft x-ray beam of synchrotron radiation. The axial single-order diffraction indicates that the zigzag transmission grating is adequate for spectroscopic application.

Zang, H. P.; Wang, C. K. [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 (China); Gao, Y. L.; Zhou, W. M.; Kuang, L. Y.; Wei, L.; Fan, W.; Zhang, W. H.; Zhao, Z. Q.; Cao, L. F.; Gu, Y. Q.; Zhang, B. H. [Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Jiang, G. [Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065 (China); Zhu, X. L.; Xie, C. Q. [Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029 (China); Zhao, Y. D.; Cui, M. Q. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)

2012-03-12T23:59:59.000Z

160

Experimental observation of acoustic sub-harmonic diffraction by a grating  

SciTech Connect (OSTI)

A diffraction grating is a spatial filter causing sound waves or optical waves to reflect in directions determined by the frequency of the waves and the period of the grating. The classical grating equation is the governing principle that has successfully described the diffraction phenomena caused by gratings. However, in this work, we show experimental observation of the so-called sub-harmonic diffraction in acoustics that cannot be explained by the classical grating equation. Experiments indicate two physical phenomena causing the effect: internal scattering effects within the corrugation causing a phase shift and nonlinear acoustic effects generating new frequencies. This discovery expands our current understanding of the diffraction phenomenon, and it also makes it possible to better design spatial diffraction spectra, such as a rainbow effect in optics with a more complicated color spectrum than a traditional rainbow. The discovery reveals also a possibly new technique to study nonlinear acoustics by exploitation of the natural spatial filtering effect inherent to an acoustic diffraction grating.

Liu, Jingfei, E-mail: benjamin.jf.liu@gatech.edu; Declercq, Nico F., E-mail: declercqdepatin@gatech.edu [Laboratory for Ultrasonic Nondestructive Evaluation LUNE, Georgia Tech Lorraine, Georgia Tech-CNRS UMI2958, Georgia Institute of Technology, 2, rue Marconi, Metz 57070 (France)

2014-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Microprocessorbased monochromator controller  

E-Print Network [OSTI]

I-- _z 5o- > :5- % IOO a) 75 ooooO eeeeeeee 65 6 .7 .8 o ee Ooooooo eeeeeeeee 9 656.0 .2 3 .4 .5 .6, (NM) >- 50 > 25 00 b) 0 e lil e e 655.8 .9 656.0 .I .2 .3 .4 .5 .6 (NM) Figure 4. Bidirectional scans of deuterium lamp emission line at 656.1 nm (e..., University of Illinois, Urbana, Illinois, USA, 1977. [3] Intel Corporation "MCS-85 USERS Manual," Santa Clara, California, USA, 1978. [4] Larsen D.G., Rony, P.R., Titus, J.A., and Titus, C.A.,Arnerican Laboratory, 1978, 10 (9), 88. [5] Ref. 3, p. A1 32. [6...

Dalle-Molle, Richard; Defreese, James D.

1980-04-01T23:59:59.000Z

162

Highly asymmetric Laue focusing monochromator  

SciTech Connect (OSTI)

By using two highly asymmetric Laue crystals in a dispersive arrangement with a circular profile (Oe 8 mm) we have created a sagittaly focusing Laue system for the first time. The crystallographic planes (111) of the two Si crystals formed an angle of 7.95 deg. with the entrance surface. The crystals dimensions were 40 mmx20 mm and the diffracting surface was a 0.5 mm thick neck between the two circular profiles. The 15.35 keV diffracted beam formed an angle of 0.55 deg. with the exit surface. The calculated focusing distance of the Laue-Laue focusing system was 14 m.

Oberta, P. [Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, Praha 8 (Czech Republic); Swiss Light Source, Paul Scherrer Institut, Villigen (Switzerland); Mikulik, P. [Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlarska 2, Brno (Czech Republic); Hrdy, J.; Kittler, M. [Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, Praha 8 (Czech Republic)

2010-06-23T23:59:59.000Z

163

Exposure Time Calculator for Immersion Grating Infrared Spectrograph: IGRINS  

E-Print Network [OSTI]

We present an exposure-time calculator (ETC) for the Immersion Grating Infrared Spectrograph (IGRINS). The signal and noise values are calculated by taking into account the telluric background emission and absorption, the emission and transmission of the telescope and instrument optics, and the dark current and read noise of the infrared detector arrays. For the atmospheric transmission, we apply models based on the amount of precipitable water vapor along the line of sight to the target. The ETC produces the expected signal-to-noise ratio (S/N) for each resolution element, given the exposure-time and number of exposures. In this paper, we compare the simulated continuum S/N for the early-type star HD 124683 and the late-type star GSS 32, and the simulated emission line S/N for the H2 rovibrational transitions from the Iris Nebula NGC 7023 with the observed IGRINS spectra. The simulated S/N from the ETC is overestimate by 10 - 15 % for the sample continuum targets.

Le, Huynh Anh N; Jaffe, Daniel T; Lee, Jae-Joon; Im, Myungshin; Kaplan, Kyle; Seifahrt, Andreas

2015-01-01T23:59:59.000Z

164

Active resonant subwavelength grating for scannerless range imaging sensors.  

SciTech Connect (OSTI)

In this late-start LDRD, we will present a design for a wavelength-agile, high-speed modulator that enables a long-term vision for the THz Scannerless Range Imaging (SRI) sensor. It takes the place of the currently-utilized SRI micro-channel plate which is limited to photocathode sensitive wavelengths (primarily in the visible and near-IR regimes). Two of Sandia's successful technologies--subwavelength diffractive optics and THz sources and detectors--are poised to extend the capabilities of the SRI sensor. The goal is to drastically broaden the SRI's sensing waveband--all the way to the THz regime--so the sensor can see through image-obscuring, scattering environments like smoke and dust. Surface properties, such as reflectivity, emissivity, and scattering roughness, vary greatly with the illuminating wavelength. Thus, objects that are difficult to image at the SRI sensor's present near-IR wavelengths may be imaged more easily at the considerably longer THz wavelengths (0.1 to 1mm). The proposed component is an active Resonant Subwavelength Grating (RSG). Sandia invested considerable effort on a passive RSG two years ago, which resulted in a highly-efficient (reflectivity greater than gold), wavelength-specific reflector. For this late-start LDRD proposal, we will transform the passive RSG design into an active laser-line reflector.

Kemme, Shanalyn A.; Nellums, Robert O.; Boye, Robert R.; Peters, David William

2006-11-01T23:59:59.000Z

165

Arrayed resonant subwavelength gratings : LDRD 38618 final report.  

SciTech Connect (OSTI)

This report describes a passive, optical component called resonant subwavelength gratings (RSGs), which can be employed as one element in an RSG array. An RSG functions as an extremely narrow wavelength and angular band reflector, or mode selector. Theoretical studies predict that the infinite, laterally-extended RSG can reflect 100% of the resonant light while transmitting the balance of the other wavelengths. Experimental realization of these remarkable predictions has been impacted primarily by fabrication challenges. Even so, we will present large area (1.0mm) RSG reflectivity as high as 100.2%, normalized to deposited gold. Broad use of the RSG will only truly occur in an accessible micro-optical system. This program at Sandia is a normal incidence array configuration of RSGs where each array element resonates with a distinct wavelength to act as a dense array of wavelength- and mode-selective reflectors. Because of the array configuration, RSGs can be matched to an array of pixels, detectors, or chemical/biological cells for integrated optical sensing. Micro-optical system considerations impact the ideal, large area RSG performance by requiring finite extent devices and robust materials for the appropriate wavelength. Theoretical predictions and experimental measurements are presented that demonstrate the component response as a function of decreasing RSG aperture dimension and off-normal input angular incidence.

Grotbeck, Carter L.; Kemme, Shanalyn A.; Wendt, Joel Robert; Warren, Mial E.; Samora, Sally; Carter, Tony Ray; Hadley, G. Ronald; Peters, David William

2003-11-01T23:59:59.000Z

166

Mass production of volume phase holographic gratings for the VIRUS spectrograph array  

E-Print Network [OSTI]

The Visible Integral-field Replicable Unit Spectrograph (VIRUS) is a baseline array of 150 copies of a simple, fiber-fed integral field spectrograph that will be deployed on the Hobby-Eberly Telescope (HET). VIRUS is the first optical astronomical instrument to be replicated on an industrial scale, and represents a relatively inexpensive solution for carrying out large-area spectroscopic surveys, such as the HET Dark Energy Experiment (HETDEX). Each spectrograph contains a volume phase holographic (VPH) grating with a 138 mm diameter clear aperture as its dispersing element. The instrument utilizes the grating in first-order for 350-550 nm. Including witness samples, a suite of 170 VPH gratings has been mass produced for VIRUS. Here, we present the design of the VIRUS VPH gratings and a discussion of their mass production. We additionally present the design and functionality of a custom apparatus that has been used to rapidly test the first-order diffraction efficiency of the gratings for various discrete wav...

Chonis, Taylor S; Hill, Gary J; Clemens, J Christopher; Lee, Hanshin; Tuttle, Sarah E; Adams, Joshua J; Marshall, J L; DePoy, D L; Prochaska, Travis

2014-01-01T23:59:59.000Z

167

Improved algorithm for processing grating-based phase contrast interferometry image sets  

SciTech Connect (OSTI)

Grating-based X-ray and neutron interferometry tomography using phase-stepping methods generates large data sets. An improved algorithm is presented for solving for the parameters to calculate transmissions, differential phase contrast, and dark-field images. The method takes advantage of the vectorization inherent in high-level languages such as Mathematica and MATLAB and can solve a 16 1k 1k data set in less than a second. In addition, the algorithm can function with partial data sets. This is demonstrated with processing of a 16-step grating data set with partial use of the original data chosen without any restriction. Also, we have calculated the reduced chi-square for the fit and notice the effect of grating support structural elements upon the differential phase contrast image and have explored expanded basis set representations to mitigate the impact.

Marathe, Shashidhara, E-mail: marathe@aps.anl.gov; Assoufid, Lahsen, E-mail: assoufid@aps.anl.gov; Xiao, Xianghui, E-mail: xhxiao@aps.anl.gov [Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, Illinois 60439 (United States)] [Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, Illinois 60439 (United States); Ham, Kyungmin, E-mail: kham1@lsu.edu [CAMD, LSU, Baton Rouge, Louisiana 70806 (United States)] [CAMD, LSU, Baton Rouge, Louisiana 70806 (United States); Johnson, Warren W., E-mail: johnson@ligo.phys.lsu.edu [Department of Physics and Astronomy, LSU, Baton Rouge, Louisiana 70803 (United States); Butler, Leslie G., E-mail: lbutler@lsu.edu [Department of Chemistry, LSU, Baton Rouge, Louisiana 70803 (United States)

2014-01-15T23:59:59.000Z

168

Effective Absorption Enhancement in Small Molecule Organic Solar Cells by Employing Trapezoid Gratings  

E-Print Network [OSTI]

We demonstrate the optical absorption has been enhanced in the small molecule organic solar cells by employing trapezoid grating structure. The enhanced absorption is mainly attributed to both waveguide modes and surface plasmon modes, which has been simulated by using finite-difference time-domain method. The simulated results show that the surface plasmon along the semitransparent metallic Ag anode is excited by introducing the periodical trapezoid gratings, which induce high intensity field increment in the donor layer. Meanwhile, the waveguide modes result a high intensity field in acceptor layer. The increment of field improves the absorption of organic solar cells, significantly, which has been demonstrated by simulating the electrical properties. The simulated results exhibiting 31 % increment of the short-circuit current has been achieved in the optimized device, which is supported by the experimental measurement. The power conversion efficiency of the grating sample obtained in experiment exhibits an...

Chun-Ping, Xiang; Yu, Jin; Bin-Zong, Xu; Wei-Min, Wang; Xin, Wei; Guo-Feng, Song; Yun, Xu

2013-01-01T23:59:59.000Z

169

Bend-insensitive ultra short long-period gratings by the electric arc method and their applications to harsh environment sensing and communication  

Science Journals Connector (OSTI)

Ultra short long-period gratings (LPGs) fabricated using the electric arc discharge method are demonstrated with regular single-mode fibers. The gratings were as short as two...

Nam, Sung; Zhan, Chun; Lee, Jon; Hahn, Corey; Reichard, Karl; Ruffin, Paul; Deng, Kung-Li; Yin, Shizhuo

2005-01-01T23:59:59.000Z

170

Fabrication of large area 100 nm pitch grating by spatial frequency doubling and nanoimprint lithography for subwavelength  

E-Print Network [OSTI]

Fabrication of large area 100 nm pitch grating by spatial frequency doubling and nanoimprint nm pitch gratings over a large area 10 cm2 using a simple, low-cost, fast process. This method doubling and 2 pattern replication using nanoimprint lithography. The form birefringence of a 100 nm pitch

171

Cryogenic tests of volume-phase holographic gratings: results at 100 K  

E-Print Network [OSTI]

We present results from cryogenic tests of Volume-Phase Holographic(VPH) gratings at 100 K. The aims of these tests are to see whether the diffraction efficiency as a function of wavelength is significantly different at a low temperature from that at room temperature and to see how the performance of a VPH grating is affected by a number of thermal cycles. We have completed 10 cycles between room temperature and 100 $K$, and find no clear evidence that the diffraction efficiency changes with temperature or with successive thermal cycle.

Naoyuki Tamura; Graham J. Murray; Peter Luke; Colin Blackburn; David J. Robertson; Nigel A. Dipper; Ray M. Sharples; Jeremy R. Allington-Smith

2006-09-04T23:59:59.000Z

172

X-ray Phase Imaging Microscopy using a Fresnel Zone Plate and a Transmission Grating  

SciTech Connect (OSTI)

We report on a hard X-ray phase imaging microscopy (a phase-difference microscopy) that consists of an objective and a transmission grating. The simple optical system provides a quantitative phase image, and does not need a wave field mostly coherent on the objective. Our method has a spatial resolution almost same as that of the absorption contrast microscope image obtained by removing the grating. We demonstrate how our approach provides a phase image from experimentally obtained images. Our approach is attractive for easily appending a quantitative phase-sensitive mode to normal X-ray microscopes, and has potentially broad applications in biology and material sciences.

Yashiro, Wataru; Momose, Atsushi [Department of Advanced Materials Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8561 (Japan); Takeuchi, Akihisa; Suzuki, Yoshio [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198 (Japan)

2010-06-23T23:59:59.000Z

173

Temperature dependence of plasmonic terahertz absorption in grating-gate gallium-nitride transistor structures  

Science Journals Connector (OSTI)

Strong plasmon resonances have been observed in the terahertz transmission spectra (15 THz) of large-area slit-grating-gate AlGaN/GaN-based high-electron-mobility transistor(HEMT) structures at temperatures from 10 to 170 K. The resonance frequencies correspond to the excitation of plasmons with wave vectors equal to the reciprocal lattice vectors of the metal grating which serves both as a gate electrode for the HEMT and a coupler between plasmons and incident terahertz radiation. Wide tunability of the resonances by the applied gate voltage demonstrates potential of these devices for terahertz applications.

A. V. Muravjov; D. B. Veksler; V. V. Popov; O. V. Polischuk; N. Pala; X. Hu; R. Gaska; H. Saxena; R. E. Peale; M. S. Shur

2010-01-01T23:59:59.000Z

174

Development of two-grating spectrometer for the charge exchange spectroscopy system on KSTAR  

SciTech Connect (OSTI)

The charge exchange spectroscopy (CES) system on Korea Superconducting Tokamak Advanced Research (KSTAR) was installed last year and had been applied to measure the C VI ion temperature and rotation velocity profiles. The ion temperature and rotation velocity profiles had been estimated from the C VI 5290.5 A (n = 8-7) charge-exchange spectrum signal measured by a Czerny-Turner type spectrometer and a thinned back-illuminated charge coupled device (CCD) camera. However, the Czerny-Turner type spectrometer used for the KSTAR CES system showed so low signal to noise ratio for KSTAR plasmas in the 2010 experimental campaign that the time resolution of the CES system had been limited to 100 ms due to the increased exposure time of the attached CCD camera. Then, new two-grating spectrometer had been developed in order to improve the time resolution of the CES system. The spectrometer consists of two gratings (1200 g/mm and 1800 g/mm each) with additive configuration, concave mirrors (f = 50 cm), and a cylindrical lens (f = 50 cm). The time resolution of the CES system increases by a factor of 2-4 with the two-grating spectrometer. The C VI ion temperature and rotation velocity profiles obtained by the two-grating spectrometer are compared to those by Czerny-Turner type spectrometer in this paper.

Lee, Hyungho [Department of Nuclear Fusion and Plasma Science, University of Science and Technology (UST), Gajungro 217, Daejeon 305-350 (Korea, Republic of); National Fusion Research Institute (NFRI), Gwahangno113, Daejeon 305-333 (Korea, Republic of); Song, Eun-ji; Oh, Soo-ghee [Division of Energy Systems Research, Ajou University, Suwon 443-749 (Korea, Republic of); Park, Young-dong [Department of Chemistry, Ajou University, Suwon 443-749 (Korea, Republic of); Ko, Won-Ha [National Fusion Research Institute (NFRI), Gwahangno113, Daejeon 305-333 (Korea, Republic of)

2011-06-15T23:59:59.000Z

175

Constructions and Analyses of Nonblocking WDM Switches Based on Arrayed Waveguide Grating and  

E-Print Network [OSTI]

(and heat dissipation) and large footprint (or space consump­ tion). As the optical device1 Constructions and Analyses of Nonblocking WDM Switches Based on Arrayed Waveguide Grating, qiao}@cse.buffalo.edu Abstract--- Constructing fast wavelength division multi­ plexing (WDM) switches

Ngo, Hung Q.

176

Force Sensing Robot Fingers using Embedded Fiber Bragg Grating Sensors and Shape Deposition Manufacturing  

E-Print Network [OSTI]

Force Sensing Robot Fingers using Embedded Fiber Bragg Grating Sensors and Shape Deposition@ifos.com Abstract-- Force sensing is an essential requirement for dexterous robot manipulation. Although strain robustness, design flexibility and immunity to electromagnetic noise. An exoskeletal force sensing robot

Park, Yong-Lae

177

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar  

E-Print Network [OSTI]

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar cells investigation and optimization of a newly proposed plasmonic organic solar cell geometry based. Kietzke, "Recent advances in organic solar cells," Adv. Optoelectron. 2007, 40285 (2007). 2. P. E. Shaw, A

Park, Namkyoo

178

Emergence of self-organized long-period fiber gratings in supercontinuum-generating  

E-Print Network [OSTI]

-order fiber cladding mode associated with the grating gains amplification at the expense of the fiber core the cladding mode(s) into which the waveguide scatters away the core mode [4]. The cladding mode(s) should, the cou- pling efficiency (CE) of cw probe light (produced by the cw operation of the writing laser

Boppart, Stephen

179

Discriminability of Real and Virtual Surfaces with Triangular Gratings Matthew Kocsis*  

E-Print Network [OSTI]

be achieved with an electrical discharge machining (EDM) procedure, but the process is time consuming processes (machined with a cutting tool, and electrical discharge machining, or EDM) and, therefore-defined sinusoidal and triangular gratings by wire EDM entails a post-machining polishing step. This process, which

Tan, Hong Z.

180

Experimental observation of a traveling plasma grating formed by two crossing filaments in gases  

SciTech Connect (OSTI)

The spatial motion and effective duration of a traveling plasma grating formed by two interfering femtosecond laser filaments in gases is characterized by its Doppler effect imparted on a probe pulse. The shift velocity determined experimentally agrees with the theoretical calculations.

Durand, Magali [Laboratoire d'Optique Appliquee, ENSTA ParisTech-Ecole Polytechnique-CNRS, 91761 Palaiseau (France); ONERA, Chemin de la Huniere, 91761 Palaiseau (France); Liu Yi; Forestier, Benjamin; Houard, Aurelien; Mysyrowicz, Andre [Laboratoire d'Optique Appliquee, ENSTA ParisTech-Ecole Polytechnique-CNRS, 91761 Palaiseau (France)

2011-03-21T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Passive Spectroscopy Bolometers, Grating- And X-Ray Imaging Crystal Spectrometers  

SciTech Connect (OSTI)

This tutorial gives a brief introduction into passive spectroscopy and describes the working principles of bolometers, a high-resolution grating spectrometer, and a novel X-ray imaging crystal spectrometer, which is of particular interest for profile measurements of the ion temperature and plasma rotation velocity on ITER and future burning plasma experiments.

Bitter, M; Hill, K W; Scott, S; Paul, S; Ince-Cushmann, A; Reinke, M; Rice, J; Beiersdorfer, P; Gu, M F; Lee, S G; Broennimann, C; Eikenberry, E F

2007-11-07T23:59:59.000Z

182

Europhysics Letters PREPRINT Lipid membranes on a surface grating studied by neutron  

E-Print Network [OSTI]

Europhysics Letters PREPRINT Lipid membranes on a surface grating studied by neutron reflectometry by neutron reflectometry, we determine the smectic penetration length = K/B from the relative intensity 37073 Goettingen, Germany PACS. 87.16.Dg ­ Membranes, bilayers, and vesicles. PACS. 61.12.Ha ­ Neutron

Paris-Sud XI, Université de

183

A Precision Comparison of Calculated and Observed Grating Constants of Crystals  

Science Journals Connector (OSTI)

A precision comparison of the calculated and observed grating constants of calcite, rocksalt, artificial KCl, and diamond crystals is made with calcite as standard. The calculated values are determined from density measurements, while the observed values are calculated from the angles of reflection for the Mo K?1 line obtained by means of a precision double-crystal spectrometer. The value of ? obtained from the calculated grating constant of calcite is used to determine the observed grating constants of the other crystals. The density of rocksalt and KCl is measured by immersion in Russian mineral oil whose density and change of density with temperature was found to be 0.88011 at 24C. and 0.000064 per 0.1 respectively. The density of diamond is determined by weighing a solution of thallous formate and thallous malonate, in which the diamond just floats, in a calibrated specific gravity bottle of approximately 50 cc capacity. Two methods are used in the x-ray measurements, namely, the calcite method, de scribed by A. H. Compton and S. K. Allison and J. H. Williams, and the rocksalt method. The latter consists of measuring the peak position of the beam reflected from crystal B by swinging the ionization chamber past the beam, with two narrow slits between it and the crystal, ranging in width from 0.04 to 0.08 mm and separated by a distance of 18 cm. Calculated and observed values of the grating constants of these crystals are found to agree within experimental error, ranging from 0.004 to 0.011 percent, showing no evidence of Zwicky's "secondary structure," which he offered as a possible explanation of the discrepancy between x-ray wave-lengths obtained by the crystal method and those by the ruled grating method. Measurements on two quartz crystals showed a decided variation in the internal structure of the crystal, and indicate that quartz is unsuitable for precise wave-length measurements.

Yuching Tu

1932-06-01T23:59:59.000Z

184

Effect of plasmonic losses on light emission enhancement in quantum-wells coupled to metallic gratings  

SciTech Connect (OSTI)

Recent experimental work has shown significant luminescence enhancement from near-surface quantum-well (QW) structures using metallic grating to convert surface plasmon (SP) modes into radiative modes. This work introduces a detailed theoretical study of plasmonic losses and the role of SPs in improving light extraction from grated light-emitting QW structures, using the fluctuational electrodynamics method. The method explains experimental results demonstrating emission enhancement, light scattering, and plasmonic coupling in the structures. We study these effects in angle-resolved reflectometry and luminescence setups in InGaN QW structures with silver grating. In contrast to experiments, our model allows direct calculation of the optical losses. The model predicts that the plasmonic coupling and scattering increases light emission by a factor of up to three compared to a flat semiconductor structure. This corresponds to reducing the absorption losses from approximately 93% in the ungrated metallic structure to 75% in the grated structure. Lower losses are associated with a significant emission enhancement enabled by the SPs of silver/GaN interfaces, which are present in the blue/green wavelength range, and can be optimized by carefully nanostructuring the metal layer and by the positioning of the QW. In general, the enhancement results from the interplay of mode scattering, conversion of SP energy directly into light, and losses in the metallic grating. The reported losses are very high when compared to the losses present in modern light-emitting diodes (LEDs). Albeit, our work provides tools needed for further optimization of plasmonic light extraction, eventually leading to highly efficient LEDs.

Sadi, Toufik; Oksanen, Jani; Tulkki, Jukka [Department of Biomedical Engineering and Computational Sciences, Aalto University, P.O. Box 12200, FI-00076 Aalto (Finland)

2013-12-14T23:59:59.000Z

185

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

186

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8.0.1 Print 8.0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

187

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

188

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

189

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8.0.1 Print 8.0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

190

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

191

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

192

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

193

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

194

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

195

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

196

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8.0.1 Print 8.0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

197

Beamline 8.0.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.1 Print 0.1 Print Surface and materials science, soft x-ray fluorescence (SXF), open port Scientific disciplines: Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system Endstations: 8.0.1.1: Soft x-ray fluorescence (SXF) spectrometer 8.0.1.2: Open port 8.0.1.3: Wet-RIXS 8.0.1.4: Nano-NEXAFS 8.0.1.5: Bio-NEXAFS GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics 5-cm period undulator (U5) (first, third, and fifth harmonics) Energy range 80-1250 eV Monochromator SGM (gratings: 150, 380, 925 lines/mm) Flux (1.9 GeV, 400 mA) 1011 to 6 x 1015 photons/s (resolution and energy dependent) Resolving power (E/ΔE) 7000 Scientific disciplines Green energy sciences, material sciences, nanosciences, surfaces sciences, correlated electron system.

198

Formation of binary phase gratings in photopolymer-liquid crystal composites by a surface-controlled anisotropic phase separation  

SciTech Connect (OSTI)

We report on formation of binary phase gratings in photopolymer-liquid crystal (PLC) composites using a surface-controlled phase separation method. The binary nature of the PLC phase gratings is produced by employing a single step photo-ablation through an amplitude photomask which precisely controls the interfacial interactions between the LC and the photopolymer on the alignment layer. A subsequent illumination of the ultraviolet light onto the whole PLC promotes an anisotropic phase separation resulting in the formation of distinct binary patterns for the PLC structure. The electrically tunable diffraction properties of the binary phase gratings are presented.

Park, Jae-Hong; Khoo, Iam Choon; Yu, Chang-Jae; Jung, Min-Sik; Lee, Sin-Doo [216 Electrical Engineering East, Pennsylvania State University, University Park, Pennsylvania 16802 (United States); School of Electrical Engineering no. 32, Seoul National University, Kwanak P.O. Box 34, Seoul 151-600 (Korea, Republic of)

2005-01-10T23:59:59.000Z

199

Milestones and basic principles of grating-based x-ray and neutron phase-contrast imaging  

SciTech Connect (OSTI)

This is a review of the most important milestones in the last ten years of development in the field of grating-based x-ray and neutron imaging. It provides a description of the basic imaging principles of grating-based phase-contrast and dark-field radiography and present some exemplary multimodal radiography results obtained with x-rays and neutrons. Furthermore, it reviews the theory of grating-based quantitative transmission, phase-contrast, and dark-field scattering computed tomography.

Pfeiffer, Franz [Technical University Munich, 85748 Garching (Germany)

2012-07-31T23:59:59.000Z

200

An ethanol vapor detection probe based on a ZnO nanorod coated optical fiber long period grating  

Science Journals Connector (OSTI)

A new ethanol vapor detection probe based on an optical fiber long period grating overlaid with a zinc oxide (ZnO) nanorods layer is presented. The ZnO nanorod layer was developed onto...

Konstantaki, Maria; Klini, Argyro; Anglos, Demetrios; Pissadakis, Stavros

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Annealing of UV Ar+ and ArF excimer laser fabricated Bragg gratings: SMF-28e fiber  

Science Journals Connector (OSTI)

Fiber Bragg gratings fabricated in pristine SMF-28e fibers using pulsed ArF-excimer and cw 244-nm Ar+ laser were annealed using tempering rates from 0.0038 to 0.25 K/s....

Violakis, Georgios; Limberger, Hans G

2014-01-01T23:59:59.000Z

202

Fabrication of high-throughput critical-angle X-ray transmission gratings for wavelength-dispersive spectroscopy  

E-Print Network [OSTI]

The development of the critical-angle transmission (CAT) grating seeks both an order of magnitude improvement in the effective area, and a factor of three increase in the resolving power of future space-based, soft x-ray ...

Bruccoleri, Alexander Robert

2013-01-01T23:59:59.000Z

203

Optimization of nonbinary slanted surface-relief gratings as high-efficiency broadband couplers for light guides  

Science Journals Connector (OSTI)

We propose and investigate the use of slanted surface-relief gratings with nonbinary profiles as high-efficiency broadband couplers for light guides. First, a Chandezon-method-based...

Bai, Benfeng; Laukkanen, Janne; Kuittinen, Markku; Siitonen, Samuli

2010-01-01T23:59:59.000Z

204

Detection of adulteration in virgin olive oil using a fiber optic long period grating based sensor  

Science Journals Connector (OSTI)

A fiber optic sensing system for the detection of adulteration of virgin olive oil by less expensive sunflower oil is presented. The fundamental principle of detection is the sensitive dependence of the resonance peaks of a long period grating (LPG) on the changes in the refractive index of the environmental medium surrounding the cladding surface of the grating. The performance of the sensor has been tested by monitoring the amplitude changes of the attenuation bands of the LPG in response to variation of adulteration level. With good repeatability, the detection limit of adulteration is 4% and the sensor sensitivity is around 0.07dBvol%?1 of adulterant in the measurement range. The developed sensor is user-friendly, reusable and allows instantaneous measurement of the amount of adulteration without involving any reagents.

T M Libish; M C Bobby; J Linesh; S Mathew; C Pradeep; V P N Nampoori; P Biswas; S Bandyopadhyay; K Dasgupta; P Radhakrishnan

2013-01-01T23:59:59.000Z

205

Cascading metallic gratings for broadband absorption enhancement in ultrathin plasmonic solar cells  

SciTech Connect (OSTI)

The incorporation of plasmonic nanostructures in the thin-film solar cells (TFSCs) is a promising route to harvest light into the nanoscale active layer. However, the light trapping scheme based on the plasmonic effects intrinsically presents narrow-band resonant enhancement of light absorption. Here we demonstrate that by cascading metal nanogratings with different sizes atop the TFSCs, broadband absorption enhancement can be realized by simultaneously exciting multiple localized surface plasmon resonances and inducing strong coupling between the plasmonic modes and photonic modes. As a proof of concept, we demonstrate of 66.5% in the photocurrent in an ultrathin amorphous silicon TFSC with two-dimensional cascaded gratings over the reference cell without gratings.

Wen, Long; Sun, Fuhe [Key Laboratory of Nanodevices and Applications-CAS and Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123 (China); Chen, Qin, E-mail: qchen2012@sinano.ac.cn [Key Laboratory of Nanodevices and Applications-CAS and Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (CAS), Suzhou 215123 (China); Peking University Shenzhen SOC Key Laboratory, PKU-HKUST Shenzhen-Hong Kong Institute, Hi-Tech Industrial Park South, Shenzhen 518057 (China)

2014-04-14T23:59:59.000Z

206

Grating formation by a high power radio wave in near-equator ionosphere  

SciTech Connect (OSTI)

The formation of a volume grating in the near-equator regions of ionosphere due to a high power radio wave is investigated. The radio wave, launched from a ground based transmitter, forms a standing wave pattern below the critical layer, heating the electrons in a space periodic manner. The thermal conduction along the magnetic lines of force inhibits the rise in electron temperature, limiting the efficacy of heating to within a latitude of few degrees around the equator. The space periodic electron partial pressure leads to ambipolar diffusion creating a space periodic density ripple with wave vector along the vertical. Such a volume grating is effective to cause strong reflection of radio waves at a frequency one order of magnitude higher than the maximum plasma frequency in the ionosphere. Linearly mode converted plasma wave could scatter even higher frequency radio waves.

Singh, Rohtash; Sharma, A. K.; Tripathi, V. K. [Department of Physics, Indian Institute of Technology Delhi, New Delhi-110016 (India)

2011-11-15T23:59:59.000Z

207

Reverse Doppler effect of magnons with negative group velocity scattered from a moving Bragg grating  

Science Journals Connector (OSTI)

We demonstrate experimentally and theoretically the reverse Doppler effect when magnons with negative group velocity are reflected off a moving Bragg grating. This grating, which represents a moving magnonic crystal, is created in an yttrium-iron-garnet film by the periodic strain induced by a traveling surface acoustic wave. As reflection occurs from a crystal rather than from a single reflecting surface, the wave number of the scattered wave is strictly determined by a momentum conservation law. Magnons scattered from the approaching (receding) magnonic crystal are found to be shifted down (up) in frequency. This result, together with an earlier report of reverse Doppler shift from moving sources [D. D. Stancil et al., Phys. Rev. B, 74, 060404(R) (2006)], establishes that the reverse Doppler effect is a universal phenomenon in systems with negative group velocity and not restricted to left-handed materials.

A. V. Chumak; P. Dhagat; A. Jander; A. A. Serga; B. Hillebrands

2010-04-16T23:59:59.000Z

208

Surface shape resonances and surface plasmon polariton excitations in bottle-shaped metallic gratings  

Science Journals Connector (OSTI)

We study surface plasmon polariton excitations and surface shape resonances in a lossy metallic grating with bivalued cavities. The modal formalism is used to solve the diffraction problem for the infinite grating and the homogeneous problem for a single cavity in a plane surface. Both polarization modes are considered. We provide curves of reflected efficiency versus wavelength as well as near-field plots. The resonances are identified as dips in the reflected efficiency, which imply significant power absorptions. Results for various depths of the cavities and for several angles of incidence are shown, where the different types of resonant behavior can be appreciated. Particular attention is paid to the changes introduced by the finite conductivity of the metal in relation to the results obtained for a perfect conductor.

Diana C. Skigin and Ricardo A. Depine

2001-03-27T23:59:59.000Z

209

An experimental study of low-frequency amplitude noise in a fibre Bragg grating laser diode  

SciTech Connect (OSTI)

We have studied the amplitude noise in a fibre Bragg grating laser diode. It has been shown that discontinuities in noise characteristics correlate with those in the power current and spectral characteristics of the laser diode, whereas the noise characteristics of the pump source have no such discontinuities. The highest noise level has been observed at pump currents corresponding to concurrent generation of two longitudinal modes. (lasers)

Zholnerov, V S [Russian Institute of Radionavigation and Time, St.Petersburg (Russian Federation); Ivanov, A V; Kurnosov, V D; Kurnosov, K V; Romantsevich, V I; Chernov, R V [Open Joint-Stock Company M.F. Stel'makh Polyus Research Institute, Moscow (Russian Federation)

2013-09-30T23:59:59.000Z

210

Ytterbium-doped fibre laser with a Bragg grating reflector written in a multimode fibre  

SciTech Connect (OSTI)

An efficient cladding-pumped Yb-doped fibre laser with a Bragg grating written in a multimode graded-index fibre is fabricated for the first time. The laser emits one transverse mode with a slope efficiency of 60%. The resonator design proposed in the paper can be used for the development of high-power fibre lasers with an increased fibre core diameter. (lasers)

Kurkov, Andrei S; Grukh, Dmitrii A; Medvedkov, O I; Paramonov, Vladimir M; Dianov, Evgenii M [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)

2005-04-30T23:59:59.000Z

211

Modeling On-Grate MSW Incineration with Experimental Validation in a Batch Incinerator  

Science Journals Connector (OSTI)

This knowledge cannot be readily obtained from direct experimental studies on industrial-scale incinerators; in contrast, mathematical modeling and numerical simulation appear to be an attractive approach for quantitative insight into the mechanisms and variables of waste-bed incineration. ... This approach was successfully employed for grate(6) or rotary kiln(7) plants. ... Gasification of carbon (char or coke) by steam is a well-known process for producing syngas. ...

Abhishek Asthana; Yannick Me?nard; Philippe Sessiecq; Fabrice Patisson

2010-07-12T23:59:59.000Z

212

Raman Microscopy and Mapping as a Probe for Photodegradation in Surface Relief Gratings Recorded on Layer-by-Layer Films of Congo Red/Polyelectrolyte  

Science Journals Connector (OSTI)

Raman microscopy, mapping, and surface-enhanced Raman scattering techniques have been applied to investigate the degradation of Congo Red (CR) in a surface relief grating (SRG)...

Constantino, C J L; Aroca, R F; He, J -A; Zucolotto, V; Li, L; Oliveira, O N; Kumar, J; Tripathy, S K

2002-01-01T23:59:59.000Z

213

Numerical and theoretical study of the generation of extreme ultraviolet radiation by relativistic laser interaction with a grating  

SciTech Connect (OSTI)

The generation of harmonics by the interaction of a femtosecond, relativistic intensity laser pulse with a grating of subwavelength periodicity was studied numerically and theoretically. For normal incidence, strong, coherent emission at the wavelength of the grating period and its harmonics is obtained, nearly parallel to the target surface, due to relativistic electron bunches emanating from each protuberance. For oblique incidence (30 deg.), only even harmonics of the grating periodicity are seen, but with an even higher intensity. This is due to constructive interference of the emission from the grating protuberances. The emission along the grating surface is composed of trains of attosecond pulses; therefore there is no need to use a filter. An efficiency greater than 10{sup -4} is obtained for the 24th harmonic. The conversion efficiency is fairly constant when the similarity parameter S=n{sub e}/(a{sub 0}n{sub c})({proportional_to}n{sub e{lambda}L}/I{sub L}{sup 1/2}) is held fixed, and is optimum when S{approx_equal}4. Here, n{sub e} and n{sub c} are the electron density and the critical density; a{sub 0}=eE{sub L}/(m{sub e{omega}L}c) is the quiver momentum in the laser field E{sub L} normalized to m{sub e}c.

Lavocat-Dubuis, X.; Matte, J.-P. [INRS-Energie, Materiaux et Telecommunications, Varennes, Quebec J3X 1S2 (Canada)

2010-09-15T23:59:59.000Z

214

Properties of the cladding modes of an optical fibre excited by refractive-index gratings  

SciTech Connect (OSTI)

The properties of the cladding modes of an optical fibre, excited by photoinduced long-period fibre gratings, were investigated by the near- and far-field methods. It is shown that the cladding modes considered are of the HE{sub 1m} type. A satisfactory agreement between the experimental and calculated distributions of the electromagnetic field of the modes is demonstrated. It was found that the propagation length of a cladding mode in the unperturbed fibre reaches 1 m. (laser applications and other topics in quantum electronics)

Vasil'ev, Sergei A; Dianov, Evgenii M; Medvedkov, O I; Protopopov, V N [Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation); Costantini, D M; Iocco, A; Limberger, H G; Salathe, R-P [Institute of Applied Optics, Swiss Federal Institute of Technology, Lausanne (Switzerland)

1999-01-31T23:59:59.000Z

215

Combustion process in a biomass grate fired industry furnace: a CFD study  

Science Journals Connector (OSTI)

This paper presents a CFD investigation of the combustion process in a 50 MW grate fired furnace. The CFD results were compared with available experimental data at the furnace outlet to validate the models for the volatile oxidation and NOx formation. The models were then used to predict the effect of an 'ECO' tube system on NOx emissions. It was shown that with an improved flow structure and air distribution, 30% NOx reduction can be obtained. CFD results revealed the impact of load and fuel moisture on the flow structure, the temperature distribution and the flow residence time.

T. Klason; X.S. Bai

2006-01-01T23:59:59.000Z

216

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers  

E-Print Network [OSTI]

Selection of operating wavelength of the Yb-doped fiber-ring lasers using longperiod fiber gratings (LPFGs) is suggested. In the proposed method, customized LPFG that sustains high powers serves as a broad-band rejection filter. It modifies the net gain profile of the laser, enabling the peak gain to occur at a designed wavelength. Spectral range of oscillation between 1050-1110 nm was experimentally demonstrated. This range can be extended to both shorter and longer wavelengths with proper design of the LPFG and length of the Yb-doped fiber. The gratings were inscribed by CO2 laser and the grating period down to 175 ?m was achieved being, to our best knowledge, the shortest reported LPFG period using this technique.

Peterka, P; Dussardier, Bernard; Slavik, R; Honzatko, P; Kubecek, V

2009-01-01T23:59:59.000Z

217

Simultaneous maximum-likelihood reconstruction for x-ray grating based phase-contrast tomography avoiding intermediate phase retrieval  

E-Print Network [OSTI]

Phase-wrapping artifacts, statistical image noise and the need for a minimum amount of phase steps per projection limit the practicability of x-ray grating based phase-contrast tomography, when using filtered back projection reconstruction. For conventional x-ray computed tomography, the use of statistical iterative reconstruction algorithms has successfully reduced artifacts and statistical issues. In this work, an iterative reconstruction method for grating based phase-contrast tomography is presented. The method avoids the intermediate retrieval of absorption, differential phase and dark field projections. It directly reconstructs tomographic cross sections from phase stepping projections by the use of a forward projecting imaging model and an appropriate likelihood function. The likelihood function is then maximized with an iterative algorithm. The presented method is tested with tomographic data obtained through a wave field simulation of grating based phase-contrast tomography. The reconstruction result...

Ritter, Andr; Durst, Jrgen; Gdel, Karl; Haas, Wilhelm; Michel, Thilo; Rieger, Jens; Weber, Thomas; Wucherer, Lukas; Anton, Gisela

2013-01-01T23:59:59.000Z

218

Large birefringence and polarization holographic gratings formed in photocross-linkable polymer liquid crystals comprising bistolane mesogenic side groups  

SciTech Connect (OSTI)

Polarization gratings with large birefringence are formed in photoreactive polymer liquid crystals with bistolane moiety and terminal cinnamic acid moiety by the use of polarized ultraviolet interference light and subsequent annealing. The polarized ultraviolet light causes the axis-selective photoreaction between the cinnamic acid groups and subsequent annealing induce the reorientation of peripheral molecules without cross-linking along the cross-linked groups. Long bistolane mesogenic moiety exhibits large birefringence in comparison with a biphenyl mesogenic moiety, the value of the induced birefringence in the bistolane mesogenic liquid crystalline (LC) polymer is strongly dependent on both the grating constant and the wavelength of the reconstruction light.

Emoto, Akira; Matsumoto, Taro; Shioda, Tatsutoshi; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Yamashita, Ayumi; Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201 (Japan)

2009-10-01T23:59:59.000Z

219

Optical properties of wide single-mode strip and grating loaded channel waveguides  

SciTech Connect (OSTI)

New wide single-mode strip and grating loaded (SGL) channel waveguides made of silicon nitride on the oxide buffer layer of a planar silicon-on-insulator waveguide are studied. The central 10-lm-wide strip produces a multi-mode channel waveguide and diffraction gratings with a period 0.6 lm built on the structure edges produce mode-dependent additional losses due to radiation to the surrounding medium. The optical properties of these waveguides are discussed using the results of a three-dimensional numerical simulation by the FDTD and BPM methods. It is shown that a wide SGL waveguide is quasi-single-mode one because it has a small propagation loss ({approx} 0.3 dB cm{sup -1}) for the fundamental mode and a high (up to -20 dB cm{sup -1}) loss for the higher order modes. The new SGL waveguides are CMOS compatible and can become basic for fabricating new photonic elements, including tunable optical filters and multi-plexers based on the multireflector technology. (waveguides)

Tsarev, Andrei V [Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation)

2009-12-31T23:59:59.000Z

220

Linear diffraction grating interferometer with high alignment tolerance and high accuracy  

SciTech Connect (OSTI)

We present an innovative structure of a linear diffraction grating interferometer as a long stroke and nanometer resolution displacement sensor for any linear stage. The principle of this diffractive interferometer is based on the phase information encoded by the {+-}1st order beams diffracted by a holographic grating. Properly interfering these two beams leads to modulation similar to a Doppler frequency shift that can be translated to displacement measurements via phase decoding. A self-compensation structure is developed to improve the alignment tolerance. LightTool analysis shows that this new structure is completely immune to alignment errors of offset, standoff, yaw, and roll. The tolerance of the pitch is also acceptable for most installation conditions. In order to compact the structure and improve the signal quality, a new optical bonding technology by mechanical fixture is presented so that the miniature optics can be permanently bonded together without an air gap in between. For the output waveform signals, a software module is developed for fast real-time pulse counting and phase subdivision. A laser interferometer HP5529A is employed to test the repeatability of the whole system. Experimental data show that within 15 mm travel length, the repeatability is within 15 nm.

Cheng Fang; Fan, Kuang-Chao

2011-08-01T23:59:59.000Z

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221

Experiences from a Novel Sensor for Fireside Corrosion Monitoring during Grate Combustion of Corn Stover/Wood Chip Blends  

Science Journals Connector (OSTI)

The operation of a pilot-scale online corrosion sensor system was studied at VTTs 100 kW grate pilot plant. The feedstock composition in tests was varied from 100% wood chips to a blend that also contained 40 en-% d.b. corn stover. The mass flow of ...

Timo J. Leino; Martti J. Aho; S. Juhani Gynther; Tommi A. Ruuskanen; Matti H. Hkkinen

2013-08-27T23:59:59.000Z

222

Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1,2,* Kazuyuki Nakayama,2  

E-Print Network [OSTI]

of the condensate, a high conversion efficiency of >70% and a long storage time of >120 s were achieved. DOI: 10Holographic Storage of Multiple Coherence Gratings in a Bose-Einstein Condensate Yutaka Yoshikawa,1 in an elongated cloud of Bose-condensed atoms. Two off-resonant write beams induce superradiant Raman scattering

Torii, Yoshio

223

Novel Subwavelength Grating Surface Emitting Laser Michael C.Y. Huang, Ye Zhou, and Connie J. Chang-Hasnain  

E-Print Network [OSTI]

Novel Subwavelength Grating Surface Emitting Laser Michael C.Y. Huang, Ye Zhou, and Connie J. Chang, USA e-mails: cch@eecs.berkeley.edu Abstract: We present a new class of surface emitting lasers cladding layers (e.g. SiO2 or air) on the top and below. The simplicity of the design and versatility

California at Irvine, University of

224

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers  

E-Print Network [OSTI]

Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers, 42.79.Dj, 42.81.-i 1. Introduction Cladding-pumped ytterbium-doped fiber lasers belong presently fiber laser with the cladding-pumped YDF a significant increase of the average output power can

Paris-Sud XI, Université de

225

Enhanced radiation of an invisible array of sources through a sub-wavelength metal-strip grating and applications  

Science Journals Connector (OSTI)

We experimentally demonstrate dramatically increased radiation from an invisible source placed next to a sub-wavelength metal strip grating. The invisible source is a novel highly reactive array of antennas excited by a common feed which weakly radiates in the far-zone. The metal grating used is sub-wavelength and non-resonant which typically attenuates the overall radiation of a nearby source especially in the transverse electric polarization. However we show that such a grating screen with proper dimensions placed next to the invisible source can in fact significantly enhance the radiated field strength far beyond the free space radiation of this invisible radiator by an order of magnitude. This radiation enhancement is facilitated through the conversion of evanescent waves of the specially designed reactive source into propagating waves and its level is inversely related to the source-grating distance. The physical phenomenon is shown in simulations and measurements at microwaves. This novel radiation enhancement effect is shown to have potential applications in various areas such as proximity sensing detection and measurement of distance.

M. Memarian

2013-01-01T23:59:59.000Z

226

Optoelectronic Interconnects XIII (OE112) Conference Chairs: Alexei L. Glebov, OptiGrate Corp. (USA); Ray T. Chen, The Univ.  

E-Print Network [OSTI]

Optoelectronic Interconnects XIII (OE112) Conference Chairs: Alexei L. Glebov, OptiGrate Corp. (USA); Ray T. Chen, The Univ. of Texas at Austin (USA) Program Committee: Bill Blubaugh, US Conec Ltd. (USA); Swapnajit Chakravarty, Omega Optics, Inc. (USA); John E. Cunningham, Oracle (USA); Allen M. Earman, Intersil

Jahns, Jürgen

227

Multiple wavelength X-ray monochromators  

DOE Patents [OSTI]

An improved apparatus and method is provided for separating input x-ray radiation containing first and second x-ray wavelengths into spatially separate first and second output radiation which contain the first and second x-ray wavelengths, respectively. The apparatus includes a crystalline diffractor which includes a first set of parallel crystal planes, where each of the planes is spaced a predetermined first distance from one another. The crystalline diffractor also includes a second set of parallel crystal planes inclined at an angle with respect to the first set of crystal planes where each of the planes of the second set of parallel crystal planes is spaced a predetermined second distance from one another. In one embodiment, the crystalline diffractor is comprised of a single crystal. In a second embodiment, the crystalline diffractor is comprised of a stack of two crystals. In a third embodiment, the crystalline diffractor includes a single crystal that is bent for focusing the separate first and second output x-ray radiation wavelengths into separate focal points. 3 figs.

Steinmeyer, P.A.

1992-11-17T23:59:59.000Z

228

Two-axis sagittal focusing monochromator  

DOE Patents [OSTI]

An x-ray focusing device and method for adjustably focusing x-rays in two orthogonal directions simultaneously. The device and method can be operated remotely using two pairs of orthogonal benders mounted on a rigid, open frame such that x-rays may pass through the opening in the frame. The added x-ray flux allows significantly higher brightness from the same x-ray source.

Haas, Edwin G; Stelmach, Christopher; Zhong, Zhong

2014-05-13T23:59:59.000Z

229

An effective medium study of surface plasmon polaritons in nanostructured gratings using attenuated total reflection  

SciTech Connect (OSTI)

Recent work studied surface plasmon resonances in structured materials by the method of attenuated total reflection using a prism on top of a metallic grating. That calculation considered Transverse Magnetic polarized radiation, involved an expansion in 121 Fourier modes, and found a number of interesting features. Many of these features were attributed to localized plasmons or other factors, which arise from a discrete structure. We use a simple effective medium theory to address the same problem, and find many of the same reflection features observed in the more complex calculation, indicating that localization is not an important factor. We also evaluate the possibility of using some of the new features in the reflection spectrum for bio-sensing and find that the sensitivity of the system to small changes in relative permittivity is increased compared to some standard methods.

Tyboroski, M. H.; Anderson, N. R.; Camley, R. E. [UCCS BioFrontiers Center, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2014-01-07T23:59:59.000Z

230

Graphene-based absorber exploiting guided mode resonances in one-dimensional gratings  

E-Print Network [OSTI]

A one-dimensional dielectric grating, based on a simple geometry, is proposed and investigated to enhance light absorption in a monolayer graphene exploiting guided mode resonances. Numerical findings reveal that the optimized configuration is able to absorb up to 60% of the impinging light at normal incidence for both TE and TM polarizations resulting in a theoretical enhancement factor of about 26 with respect to the monolayer graphene absorption (about 2.3%). Experimental results confirm this behaviour showing CVD graphene absorbance peaks up to about 40% over narrow bands of few nanometers. The simple and flexible design paves the way for the realization of innovative, scalable and easy-to-fabricate graphene-based optical absorbers.

Grande, M; Stomeo, T; Bianco, G V; de Ceglia, D; Akozbek, N; Petruzzelli, V; Bruno, G; De Vittorio, M; Scalora, M; Orazio, A D

2014-01-01T23:59:59.000Z

231

Solvent-side observation on vibrational energy transfer by transient grating spectroscopy: Bridged azulene-anthracene  

E-Print Network [OSTI]

Transient grating acoustic spectroscopy has been applied to studies on the vibrational energy relaxation process of the electronic ground state of azulene, two 1-alkylazulenes, and five bridged azulene-anthracenes in three different solvents: 1,1,1-trichloro-1,2,2-trifluoroethane, acetonitrile, and xenon. The solute molecule was vibrationally excited by the photo-excitation of the auzlenyl group to the S1 state through the fast internal conversion, and the rate of solvent thermalization due to the vibrational energy relaxation was determined. The thermalization rates for 1-alkylazulenes and bridged azulene-anthracenes were faster than that of azulene. Based on the results of the thermalization rates of 1-alkylazulenes, we concluded that the acceleration of the energy dissipation from the azulenyl group induced the faster energy dissipation from the solute to the solvent. The vibrational normal mode analysis suggests that the density of the vibrational modes and anharmonic coupling between the vibrational mode...

Fujiwara, Hiroki

2014-01-01T23:59:59.000Z

232

A transmission grating spectrograph and its application in both laser plasma and plasma focus  

Science Journals Connector (OSTI)

A new transmission gratingspectrograph for soft x-raymeasurement in pulsed plasmas was designed and studied. The spectrograph has an adjustment system with three degrees of freedom together with an electronic-controlled camera. This design makes it easy to align and use for laser-produced plasmas or the plasma focus. The spectrograph provides spatially resolved spectrum in two dimensions and has a wavelength range of 0.330 nm. A transmission grating was used to obtain spatially resolved spectra from plasmas produced by laser-irradiated solid target and gas filled plasma focus. Such a spectrograph is suitable for coupling with a soft x-ray streak camera or a soft x-ray charge coupled device detector for time-resolved studies.

X. Feng; M. H. Liu; S. Lee

1997-01-01T23:59:59.000Z

233

A soft x-ray transmission grating imaging-spectrometer for the National Ignition Facility  

SciTech Connect (OSTI)

A soft x-ray transmission grating spectrometer has been designed for use on high energy-density physics experiments at the National Ignition Facility (NIF); coupled to one of the NIF gated x-ray detectors (GXD) it records sixteen time-gated spectra between 250 and 1000eV with 100ps temporal resolution. The trade-off between spectral and spatial resolution leads to an optimized design for measurement of emission around the peak of a 100-300eV blackbody spectrum. Performance qualification results from the NIF, the Trident Laser Facility and VUV beamline at the National Synchrotron Light Source (NSLS), evidence a <100{micro}m spatial resolution in combination with a source-size limited spectral resolution that is <10eV at photon energies of 300eV.

Moore, A S; Guymer, T M; Kline, J L; Morton, J; Taccetti, M; Lanier, N E; Bentley, C; Workman, J; Peterson, B; Mussack, K; Cowan, J; Prasad, R; Richardson, M; Burns, S; Kalantar, D H; Benedetti, L R; Bell, P; Bradley, D; Hsing, W; Stevenson, M

2012-05-01T23:59:59.000Z

234

A soft x-ray transmission grating imaging-spectrometer for the National Ignition Facility  

SciTech Connect (OSTI)

A soft x-ray transmission grating spectrometer has been designed for use on high energy-density physics experiments at the National Ignition Facility (NIF); coupled to one of the NIF gated x-ray detectors it records 16 time-gated spectra between 250 and 1000 eV with 100 ps temporal resolution. The trade-off between spectral and spatial resolution leads to an optimized design for measurement of emission around the peak of a 100-300 eV blackbody spectrum. Performance qualification results from the NIF, the Trident Laser Facility and vacuum ultraviolet beamline at the National Synchrotron Light Source, evidence a <100 {mu}m spatial resolution in combination with a source-size limited spectral resolution that is <10 eV at photon energies of 300 eV.

Moore, A. S.; Guymer, T. M.; Morton, J.; Bentley, C.; Stevenson, M. [Directorate Science and Technology, AWE Aldermaston, Reading, RG7 4PR (United Kingdom); Kline, J. L.; Taccetti, M.; Lanier, N. E.; Workman, J.; Peterson, B.; Mussack, K.; Cowan, J. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Prasad, R.; Richardson, M.; Burns, S.; Kalantar, D. H.; Benedetti, L. R.; Bell, P.; Bradley, D.; Hsing, W. [Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808 (United States)

2012-10-15T23:59:59.000Z

235

X-Atlas: An Online Archive of Chandra's Stellar High Energy Transmission Gratings Observations  

E-Print Network [OSTI]

The high-resolution X-ray spectroscopy made possible by the 1999 deployment of the Chandra X-ray Observatory has revolutionized our understanding of stellar X-ray emission. Many puzzles remain, though, particularly regarding the mechanisms of X-ray emission from OB stars. Although numerous individual stars have been observed in high-resolution, realizing the full scientific potential of these observations will necessitate studying the high-resolution Chandra dataset as a whole. To facilitate the rapid comparison and characterization of stellar spectra, we have compiled a uniformly processed database of all stars observed with the Chandra High Energy Transmission Grating (HETG). This database, known as X-Atlas, is accessible through a web interface with searching, data retrieval, and interactive plotting capabilities. For each target, X-Atlas also features predictions of the low-resolution ACIS spectra convolved from the HETG data for comparison with stellar sources in archival ACIS images. Preliminary analyses of the hardness ratios, quantiles, and spectral fits derived from the predicted ACIS spectra reveal systematic differences between the high-mass and low-mass stars in the atlas and offer evidence for at least two distinct classes of high-mass stars. A high degree of X-ray variability is also seen in both high and low-mass stars, including Capella, long thought to exhibit minimal variability. X-Atlas contains over 130 observations of approximately 25 high-mass stars and 40 low-mass stars and will be updated as additional stellar HETG observations become public. The atlas has recently expanded to non-stellar point sources, and Low Energy Transmission Grating (LETG) observations are currently being added as well.

Owen W. Westbrook; Nancy Remage Evans; Scott J. Wolk; Vinay L. Kashyap; Joy S. Nichols; Peter J. Mendygral; Jonathan D. Slavin; Bradley Spitzbart; Wayne L. Waldron

2007-12-04T23:59:59.000Z

236

Influencing factors on NOX emission level during grate conversion of three pelletized energy crops  

Science Journals Connector (OSTI)

Abstract NOX emission behavior of three different pelletized energy crops, a herbaceous one, Brassica carinata, a short rotation coppice, Populus sp., and a blend of them, was assessed during fixed grate conversion. Measurements of NOX emissions were done at combustion conditions that yielded both thermal efficiency and CO emissions according to the European norm (EN 303-5:2012), and results compared to limits established by the Austrian deviations. Based on the experimental data, NOX results fulfilled the Austrian restrictions except during combustion of brassica, which exhibited the highest Fuel-N content. The Fuel-NOX was identified as the main formation mechanism. An opposite relation was determined between the specific NOX emissions and the Fuel-N conversion ratio obtained between the N-rich and the N-lean fuels tested here. The influence of the air supply (amount and distribution) on the NOX formation was also noticeable. In general, a higher proportion of air increased the specific NOX emissions and the Fuel-N conversion ratio. Possibilities to control the NOX emissions level by air staging were rather limited, particularly, during combustion of brassica and the blend because of their peculiarities as ash-rich fuels with high slag formation risk. For attaining an appropriate conversion of these fuels, primary air requirements substantially increased. Due to limitations found during the energy crops conversion, efforts to minimize the level of NOX emissions identified here for the troublesome fuels tested should be mainly focused on attaining both a properly designed air supply system and the grate temperature control as well as on conditioning the Fuel-N content, for instance, by blending.

Maryori Daz-Ramrez; Fernando Sebastin; Javier Royo; Adeline Rezeau

2014-01-01T23:59:59.000Z

237

High Neutron Fluence Survivability Testing of Advanced Fiber Bragg Grating Sensors  

SciTech Connect (OSTI)

The motivation for the reported research was to support NASA space nuclear power initiatives through the development of advanced fiber optic sensors for space-based nuclear power applications. The purpose of the high-neutron fluence testing was to demonstrate the survivability of fiber Bragg grating (FBG) sensors in a fission reactor environment. 520 FBGs were installed in the Ford reactor at the University of Michigan. The reactor was operated for 1012 effective full power hours resulting in a maximum neutron fluence of approximately 5x1019 n/cm2, and a maximum gamma dose of 2x103 MGy gamma. This work is significant in that, to the knowledge of the authors, the exposure levels obtained are approximately 1000 times higher than for any previously published experiment. Four different fiber compositions were evaluated. An 87% survival rate was observed for fiber Bragg gratings located at the fuel centerline. Optical Frequency Domain Reflectometry (OFDR), originally developed at the NASA Langley Research Center, can be used to interrogate several thousand low-reflectivity FBG strain and/or temperature sensors along a single optical fiber. A key advantage of the OFDR sensor technology for space nuclear power is the extremely low mass of the sensor, which consists of only a silica fiber 125{mu}m in diameter. The sensors produced using this technology will fill applications in nuclear power for current reactor plants, emerging Generation-IV reactors, and for space nuclear power. The reported research was conducted by Luna Innovations and was funded through a Small Business Innovative Research (SBIR) contract with the NASA Glenn Research Center.

Fielder, Robert S.; Klemer, Daniel; Stinson-Bagby, Kelly L. [Luna Innovations, Inc., 2851 Commerce Street, Blacksburg, VA 24060 (United States)

2004-02-04T23:59:59.000Z

238

Plane grating as polar heliostat in eclipse observations of the chromosphere and prominences with special application to studies of Doppler-widened Thomson-scattered Fraunhofer lines  

Science Journals Connector (OSTI)

Attention is drawn to a very simple instrumental arrangement for eclipse observations of the spectra of the chromosphere and prominences using a plane grating as polar heliostat and a short focus camera. A discus...

Yngve hman

1979-06-01T23:59:59.000Z

239

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid F. Lapierre, F. Zoueshtiagh, V. Thomy, and A. Merlen  

E-Print Network [OSTI]

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid P. Brunet, F (Dated: November 30, 2009) We report on experiments of drop impacting a hydrophobic micro-grid

Brunet, Philippe

240

Measurement method for roll angular displacement with a high resolution by using diffraction gratings and a heterodyne interferometer  

SciTech Connect (OSTI)

The roll angle measurement is difficult to be achieved directly using a typical commercial interferometer due to its low sensitivity in axial direction, where the axial direction is orthogonal to the plane of the roll angular displacement. A roll angle measurement method combined diffraction gratings with a laser heterodyne interferometer is discussed in this paper. The diffraction grating placed in the plane of a roll angular displacement and the interferometer arranged in the plane's orthogonal direction, constitute the measurement pattern for the roll angle with high resolution. The roll angular displacement, considered as the linear, can be tested precisely when the corresponding angle is very small. Using the proposed method, the angle roll measurement obtains the high resolution of 0.002{sup ?}. Experiment has proved its feasibility and practicability.

Tang, Shanzhi, E-mail: shanzhit@gmail.com [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China) [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Wang, Zhao [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)] [School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049 (China); Gao, Jianmin; Guo, Junjie [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)] [State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710054 (China)

2014-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Spectrally enhancing near-field radiative heat transfer by exciting magnetic polariton in SiC gratings  

E-Print Network [OSTI]

In the present work, we theoretically demonstrate, for the first time, that near field radiative transport between 1D periodic grating microstructures separated by subwavelength vacuum gaps can be significantly enhanced by exciting magnetic resonance or polariton. Fluctuational electrodynamics that incorporates scattering matrix theory with rigorous coupled wave analysis is employed to exactly calculate the near field radiative heat flux between two SiC gratings. Besides the well known coupled surface phonon polaritons (SPhP), an additional spectral radiative heat flux peak, which is due to magnetic polariton, is found within the phonon absorption band of SiC. The mechanisms, behaviors and interplays between magnetic polariton, coupled SPhP, single interface SPhP, and Wood's anomaly in the near field radiative transport are elucidated in detail. The findings will open up a new way to control near field radiative heat transfer by magnetic resonance with micro or nanostructured metamaterials.

Yang, Yue

2015-01-01T23:59:59.000Z

242

Euler-Euler simulation of wood chip combustion on a grate - effect of fuel moisture content and full scale application  

Science Journals Connector (OSTI)

Nowadays, it is common practice to perform CFD calculations for optimisation purposes of technical biomass combustion applications. A numerical model for wood chip combustion on grate firing arrangements has been developed. The model is based on an Euler-Euler approach, enabling a detailed multiphase description of the combustion chamber in terms of flow, turbulence and heat transfer. The model explicitly accounts for interactions between bed and freeboard region and comprises a global description of the whole incineration process associated with wood combustion. For validation purposes, the effect of fuel moisture content in a 240 kWth test facility has been observed experimentally and the results are opposed to the model predictions. Additionally, measurements within a 58 MWth full scale grate firing system have been conducted and the scalability of the numerical model towards industrial applications is investigated.

D. Kurz; U. Schnell; G. Scheffknecht

2013-01-01T23:59:59.000Z

243

Resonant modes of a bottle-shaped cavity and their effects in the response of finite and infinite gratings  

Science Journals Connector (OSTI)

The resonant frequencies of a one-dimensional bottle-shaped cavity embedded in a ground plane are calculated using a modal approach for s and p polarizations. The same formalism is used to solve the problem of scattering from a surface with a finite number of cavities and from an infinite periodic grating. We show numerical results where the resonant behavior is evidenced as dips in the curve of intensity specularly reflected from a surface with one or several bottle-shaped grooves. The surface shape resonances of a single cavity are also shown to have a great influence on the efficiency distribution of the diffracted orders from infinite gratings made of bottle-shaped cavities. The excitation of even and odd modes is analyzed for both polarizations.

Ricardo A. Depine and Diana C. Skigin

2000-04-01T23:59:59.000Z

244

Conformal growth of Mo/Si multilayers on grating substrates using collimated ion beam sputtering  

SciTech Connect (OSTI)

Deposition of multilayers on saw-tooth substrates is a key step in the fabrication of multilayer blazed gratings (MBG) for extreme ultraviolet and soft x-rays. Growth of the multilayers can be perturbed by shadowing effects caused by the highly corrugated surface of the substrates, which results in distortion of the multilayer stack structure and degradation of performance of MBGs. To minimize the shadowing effects we used an ionbeam sputtering machine with a highly collimated atomic flux to deposit Mo/Si multilayers on saw-tooth substrates. The sputtering conditions were optimized by finding a balance between smoothening and roughening processes in order to minimize degradation of the groove profile in the course of deposition and at the same time to keep the interfaces of a multilayer stack smooth enough for high efficiency. An optimal value of energy of 200 eV for sputtering Kr{sup +} ions was found by deposition of test multilayers on flat substrates at a range of ion energies. Two saw-tooth substrates were deposited at energies of 200 eV and 700 eV for the sputtering ions. It was found that reduction of the ion energy improved the blazing performance of the MBG and resulted in a 40% gain in the diffraction efficiency due to better replication of the groove profile by the multilayer. As a result of the optimization performed, an absolute diffraction efficiency of 28.8% was achieved for the 2nd blaze order of the MBG with a groove density of 7350 lines/mm at a wavelength of 13.5 nm. Details of the growth behavior of the multilayers on flat and saw-tooth substrates are discussed in terms of the Linear Continuous Model of film growth.

Gawlitza, Peter; Cambie, Rossana; Dhuey, Scott; Gullikson, Eric; Warwick, Tony; Braun, Stefan; Yashchuk, Valeriy; Padmore, Howard

2012-01-23T23:59:59.000Z

245

Variable Spaced Grating (VSG) Snout, Rotator and Rails for use at LLE  

SciTech Connect (OSTI)

The Variable Spaced Grating (VSG) is a spectrometer snout mounted to an X-Ray Framing Camera (XRFC) through the Unimount flange. This equipment already exists and is used at the University of Rochester, Laboratory for Laser Energetics (LLE) facility. The XRFC and the Unimount flange are designed by LLE. The Tilt Rotator fixture that mounts next to the XRFC and the cart rails are designed by LLNL, and are included in this safety note. The other related components, such as the TIM rails and the Unimount flange, are addressed in a separate safety note, EDSN09-500005-AA. The Multipurpose Spectrometer (MSPEC) and VSG are mounted on the TIM Boat through the cart rails that are very similar in design. The tilt rotator combination with the Unimount flange is also a standard mounting procedure. The later mounting system has been included in this safety note. Figure-1 shows the interface components and the VSG snout. Figure-2 shows the VSG assembly mounted on the Unimount flange. The calibration pointer attachment is shown in place of the snout. There are two types of VSG, one made of 6061-T6 aluminum, weighing approximately 3 pounds, and the other made of 304 stainless steel, weighing approximately 5.5 pounds. This safety note examines the VSG steel design. Specific experiments may require orienting the VSG snout in 90 degrees increment with respect to the Unimount flange. This is done by changing the bolts position on the VSG-main body adapter flange to the Unimount adapter plate. There is no hazard involved in handling the VSG during this procedure as it is done outside the target chamber on the cart rail before installing on the TIM. This safety note addresses the mechanical integrity of the VSG structure, the tilt rotating fixture, the cart rails with handle and their connections. Safety Factors are also calculated for the MSPEC in place of the VSG.

Mukherjee, S K; Emig, J A; Griffith, L V; Heeter, R F; House, F A; James, D L; Schneider, M B; Sorce, C M

2010-01-25T23:59:59.000Z

246

A grating-based single-shot x-ray phase contrast and diffraction method for in vivo imaging  

SciTech Connect (OSTI)

Purpose: The purpose of this study is to develop a single-shot version of the grating-based phase contrast x-ray imaging method and demonstrate its capability of in vivo animal imaging. Here, the authors describe the principle and experimental results. They show the source of artifacts in the phase contrast signal and optimal designs that minimize them. They also discuss its current limitations and ways to overcome them. Methods: A single lead grid was inserted midway between an x-ray tube and an x-ray camera in the planar radiography setting. The grid acted as a transmission grating and cast periodic dark fringes on the camera. The camera had sufficient spatial resolution to resolve the fringes. Refraction and diffraction in the imaged object manifested as position shifts and amplitude attenuation of the fringes, respectively. In order to quantify these changes precisely without imposing a fixed geometric relationship between the camera pixel array and the fringes, a spatial harmonic method in the Fourier domain was developed. The level of the differential phase (refraction) contrast as a function of hardware specifications and device geometry was derived and used to guide the optimal placement of the grid and object. Both ex vivo and in vivo images of rodent extremities were collected to demonstrate the capability of the method. The exposure time using a 50 W tube was 28 s. Results: Differential phase contrast images of glass beads acquired at various grid and object positions confirmed theoretical predictions of how phase contrast and extraneous artifacts vary with the device geometry. In anesthetized rats, a single exposure yielded artifact-free images of absorption, differential phase contrast, and diffraction. Differential phase contrast was strongest at bone-soft tissue interfaces, while diffraction was strongest in bone. Conclusions: The spatial harmonic method allowed us to obtain absorption, differential phase contrast, and diffraction images, all from a single raw image and is feasible in live animals. Because the sensitivity of the method scales with the density of the gratings, custom microfabricated gratings should be superior to off-the-shelf lead grids.

Bennett, Eric E.; Kopace, Rael; Stein, Ashley F.; Wen Han [National Heart, Lung, and Blood Institute, National Institutes of Health, Imaging Physics Section, Translational Medicine Branch, 10 Center Drive, MSC 1061, Bethesda, Maryland 20892 (United States)

2010-11-15T23:59:59.000Z

247

Optimized Si/SiO2 high contrast grating mirror design for mid-infrared wavelength range: robustness enhancement  

E-Print Network [OSTI]

A high reflectivity and polarization selective high contrast grating mirror has been designed with the use of an automated optimization algorithm. Through a precise study of the tolerance of the different lengths of the structure, the robustness with respect to the fabrication errors has been enhanced to high tolerance values between 5 % and 210 %. This adjustment of the dimensions of the structure leads to a 250 nm large bandwidth mirror well adapted for a VCSEL application at \\lambda = 2.65 $\\mu$m and can easily be scaled for other wavelengths.

Chevallier, Christyves; Jacquet, Joel; Fressengeas, Nicolas; 10.1016/j.optlastec.2011.09.010

2011-01-01T23:59:59.000Z

248

GNOSIS: THE FIRST INSTRUMENT TO USE FIBER BRAGG GRATINGS FOR OH SUPPRESSION  

SciTech Connect (OSTI)

The near-infrared is an important part of the spectrum in astronomy, especially in cosmology because the light from objects in the early universe is redshifted to these wavelengths. However, deep near-infrared observations are extremely difficult to make from ground-based telescopes due to the bright background from the atmosphere. Nearly all of this background comes from the bright and narrow emission lines of atmospheric hydroxyl (OH) molecules. The atmospheric background cannot be easily removed from data because the brightness fluctuates unpredictably on short timescales. The sensitivity of ground-based optical astronomy far exceeds that of near-infrared astronomy because of this long-standing problem. GNOSIS is a prototype astrophotonic instrument that utilizes 'OH suppression fibers' consisting of fiber Bragg gratings and photonic lanterns to suppress the 103 brightest atmospheric emission doublets between 1.47 and 1.7 {mu}m. GNOSIS was commissioned at the 3.9 m Anglo-Australian Telescope with the IRIS2 spectrograph to demonstrate the potential of OH suppression fibers, but may be potentially used with any telescope and spectrograph combination. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion and in a manner that depends purely on wavelength. We present the instrument design and report the results of laboratory and on-sky tests from commissioning. While these tests demonstrated high throughput ( Almost-Equal-To 60%) and excellent suppression of the skylines by the OH suppression fibers, surprisingly GNOSIS produced no significant reduction in the interline background and the sensitivity of GNOSIS+IRIS2 is about the same as IRIS2. It is unclear whether the lack of reduction in the interline background is due to physical sources or systematic errors as the observations are detector noise dominated. OH suppression fibers could potentially impact ground-based astronomy at the level of adaptive optics or greater. However, until a clear reduction in the interline background and the corresponding increasing in sensitivity is demonstrated optimized OH suppression fibers paired with a fiber-fed spectrograph will at least provide a real benefit at low resolving powers.

Trinh, Christopher Q.; Ellis, Simon C.; Bland-Hawthorn, Joss; Bryant, Julia; O'Byrne, John [Sydney Institute for Astronomy, School of Physics, The University of Sydney, NSW 2006 (Australia); Lawrence, Jon S.; Horton, Anthony J.; Shortridge, Keith; Case, Scott; Colless, Matthew; Gers, Luke; Lee, Steve; Miziarski, Stan [Australian Astronomical Observatory, 105 Delhi Road, North Ryde, P.O. Box 915, NSW 1670 (Australia); Leon-Saval, Sergio G. [Institute of Photonics and Optical Science, School of Physics, University of Sydney, NSW 2006 (Australia); Couch, Warrick; Glazebrook, Karl [Centre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122 (Australia); Freeman, Kenneth [Research School of Astronomy and Astrophysics, Australian National University, Weston Creek, ACT 2611 (Australia); Loehmannsroeben, Hans-Gerd [innoFSPEC-Institut fuer Chemie/Physikalische Chemie, Universitaet Potsdam, Karl-Liebknecht-Strasse 24-25, D-14476 Potsdam-Golm (Germany); Haynes, Roger; Roth, Martin M., E-mail: c.trinh@physics.usyd.edu.au [innoFSPEC-Leibniz-Institut fuer Astrophysik Potsdam, An der Sternwarte 16, D-14482 Potsdam (Germany); and others

2013-02-01T23:59:59.000Z

249

Development of pseudo-random binary gratings and arrays for calibration of surface profile metrology tools  

SciTech Connect (OSTI)

Optical Metrology tools, especially for short wavelength (EUV and X-Ray), must cover a wide range of spatial frequencies from the very low, which affects figure, to the important mid-spatial frequencies and the high spatial frequency range, which produces undesirable flair. A major difficulty in using surface profilometers arises due to the unknown Modulation Transfer Function (MTF) of the instruments. Therefore, accurate calibration of profilometers, the understanding of their MTF limitations, and cross calibration between tools represents a considerable challenge for quantitative optical metrology. In previous work the instrumental MTF of a surface profiler was precisely measured using reference test surfaces based on binary pseudo-random (BPR) gratings. Here, they present results of fabricating and using two-dimensional (2D) BPR arrays that allow for a direct 2D calibration of the instrumental MTF. BPR sequences are widely used in engineering and communication applications such as Global Position System, and wireless communication protocol. The ideal BPR pattern has a flat 'white noise' response over the entire range of spatial frequencies of interest. The BPR array used here is based on the Uniformly Redundant Array prescription initially used for x-ray and gamma ray astronomy applications. The URA's superior imaging capability originates from the fact that its cyclical autocorrelation function very closely approximates a delta function, which produces a flat Power Spectrum Density (PSD). Three different BPR array patterns were fabricated by electron beam lithography and ICP etching of silicon. The basic size unit was 200 nm, 400 nm, and 600 nm. Figure 1 shows the fabrication sequence. The 2D BPR arrays were used as standard test surfaces for MTF calibration of the MicroMap{trademark}-570 interferometric microscope with all available objectives. Figure 2 shows representative scanning probe height data for the 400 nm BPR sample. Figure 2 shows the raw Power Spectral Density for 5 different objectives. They demonstrate that the two dimensional BPR array is a very effective calibration standard. However, departures from ideal, such as square sidewall, and uniform etch depth ultimately can limit the accuracy of the calibration. The effects of fabrication imperfections on the efficiency of calibration will be discussed.

Barber, Samuel K.; Soldate, Paul; Anderson, Erik; Cambie, Rosanna; McKinney, Wayne R.; Takacs, Peter Z.; Voronov, Dmytro L.; Yashchuk, Valeriy V.

2009-01-16T23:59:59.000Z

250

2D grating simulation for X-ray phase-contrast and dark-field imaging with a Talbot interferometer  

SciTech Connect (OSTI)

Talbot interferometry is a recently developed and an extremely powerful X-ray phase-contrast imaging technique. Besides giving access to ultra-high sensitivity differential phase contrast images, it also provides the dark field image, which is a map of the scattering power of the sample. In this paper we investigate the potentialities of an improved version of the interferometer, in which two dimensional gratings are used instead of standard line grids. This approach allows to overcome the difficulties that might be encountered in the images produced by a one dimensional interferometer. Among these limitations there are the phase wrapping and quantitative phase retrieval problems and the directionality of the differential phase and dark-field signals. The feasibility of the 2D Talbot interferometer has been studied with a numerical simulation on the performances of its optical components under different circumstances. The gratings can be obtained either by an ad hoc fabrication of the 2D structures or by a superposition of two perpendicular linear grids. Through this simulation it has been possible to find the best parameters for a practical implementation of the 2D Talbot interferometer.

Zanette, Irene; Weitkamp, Timm [European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38043 Grenoble (France); David, Christian; Rutishauser, Simon [Paul Scherrer Insitute, 5232 Villigen PSI (Switzerland)

2010-04-06T23:59:59.000Z

251

All-Optical Modulation of Localized Surface Plasmon Coupling in a Hybrid System Composed of Photoswitchable Gratings and Au Nanodisk Arrays  

Science Journals Connector (OSTI)

All-Optical Modulation of Localized Surface Plasmon Coupling in a Hybrid System Composed of Photoswitchable Gratings and Au Nanodisk Arrays ... Components of this work were conducted at the Penn State node of the NSF-funded National Nanotechnology Infrastructure Network. ...

Yan Jun Liu; Yue Bing Zheng; Justin Liou; I-Kao Chiang; Iam Choon Khoo; Tony Jun Huang

2011-03-04T23:59:59.000Z

252

April 1, 2002 / Vol. 27, No. 7 / OPTICS LETTERS 485 Light trapping in a fiber grating defect by four-wave mixing  

E-Print Network [OSTI]

the structures have a slow frequency response. Our approach is somewhat reminiscent of that of Winful and Perlin9 light in a defect state in a nonuniform fiber grating. The amount of energy deposited is estimated and the optical push broom.5 Here we propose another such demonstra- tion, namely, the storage of light

Sipe,J. E.

253

BEAMLINE 8-1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 1 CURRENT STATUS: Open SUPPORTED TECHNIQUES: Photoemission spectroscopy MAIN SCIENTIFIC DISCIPLINES: BL8-1a: Materials / Surface Chemistry BL8-1b: Materials % TIME GENERAL USE: 100% SCHEDULING: Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: Bending magnet station (vacuum ultraviolet) BEAM LINE SPECIFICATIONS: energy range grating type resolution DE/E spot size (FWHM) flux angular acceptance focused 15 - 185 eV ~1 x 10-3 0.1 mm2 8.0 mrad OPTICS: M0 mirror: Cylindrical, SiC M1 mirror: Spherical, Fused Silica MONOCHROMATOR: 6m toroidal grating monochromator (TGM) Grating Monochromator References Monochromator Crystal Glitch Library Crystal changes need to be scheduled and coordinated in advance with BL support staff.

254

Temporal characteristics of polarization holographic gratings formed in a photosensitive polymeric film containing N-benzylideneaniline derivative side groups  

SciTech Connect (OSTI)

A polarization holographic grating was recorded in a transparent thin film formed from polymethacrylate with N-benzylideneaniline (NBA) derivative side groups. We measured the real time diffraction properties. The data were analyzed based on a theoretical model that accounted for the distribution of optical anisotropy caused by molecular reorientation as well as for surface relief (SR) deformation caused by molecular motion. Optical anisotropy rapidly increased and then slowly decreased, with increasing recording time. This phenomenon was described based on photoisomerization and photocleavage reactions of the NBA side groups. SR deformation was also induced in the film by polarization holographic recording, without any subsequent processes. The photoinduced optical anisotropy and SR deformation were retained after the recording was turned off.

Sasaki, Tomoyuki, E-mail: sasaki-tomoy@vos.nagaokaut.ac.jp; Shoho, Takashi; Noda, Kohei; Ono, Hiroshi [Department of Electrical Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188 (Japan); Kawatsuki, Nobuhiro [Department of Materials Science and Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280 (Japan)

2014-04-21T23:59:59.000Z

255

Polarization gratings in the short-pitch approximation: electro-optics of deformed helix ferroelectric liquid crystals  

E-Print Network [OSTI]

Electro-optical properties of deformed helix ferroelectric liquid crystal (DHFLC) cells are studied by using a general theoretical approach to polarization gratings in which the transmission and reflection matrices of diffraction orders are explicitly related to the evolution operator of equations for the Floquet harmonics. In the short-pitch approximation, a DHFLC cell is shown to be optically equivalent to a uniformly anisotropic biaxial layer where one of the optical axes is normal to the substrates. For in-plane anisotropy, orientation of the optical axes and birefringence are both determined by the voltage applied across the cell and represent the parameters that govern the transmittance of normally incident light passing through crossed polarizers. We calculate the transmittance as a function of the applied voltage and compare the computed curves with the experimental data. The theoretical and experimental results are found to be in good agreement.

Alexei D. Kiselev; Eugene P. Pozhidaev; Vladimir G. Chigrinov; Hoi-Sing Kwok

2010-11-19T23:59:59.000Z

256

Optical Transient-Grating Measurements of Spin Diffusion andRelaxation in a Two-Dimensional Electron Gas  

SciTech Connect (OSTI)

Spin diffusion in n-GaAs quantum wells, as measured by our optical transient-grating technique, is strongly suppressed relative to that of charge. Over a broad range of temperatures and dopings, the suppression of Ds relative to Dc agrees quantitatively with the prediction of ''spin Coulomb dra'' theory, which takes into account the exchange of spin in electron-electron collisions. Moreover, the spin-diffusion length, Ls, is a nearly constant 1 micrometer over the same range of T and n, despite Ds's varying by nearly two orders of magnitude. This constancy supports the D'yakonov-Perel'-Kachorovskii model of spin relaxation through interrupted precessional dephasing in the spin-orbit field.

Weber, Christopher P.

2005-12-15T23:59:59.000Z

257

Investigation of ultrafast photothermal surface expansion and diffusivity in GaAs via laser-induced dynamic gratings  

SciTech Connect (OSTI)

This thesis details the first direct ultrafast measurements of the dynamic thermal expansion of a surface and the temperature dependent surface thermal diffusivity using a two-color reflection transient grating technique. Studies were performed on p-type, n-type, and undoped GaAs(100) samples over a wide range of temperatures. By utilizing a 90 fs ultraviolet probe with visible excitation beams, the effects of interband saturation and carrier dynamics become negligible; thus lattice expansion due to heating and subsequent contraction caused by cooling provided the dominant influence on the probe. At room temperature a rise due to thermal expansion was observed, corresponding to a maximum net displacement of {approximately} 1 {Angstrom} at 32 ps. The diffracted signal was composed of two components, thermal expansion of the surface and heat flow away from the surface, thus allowing a determination of the rate of expansion as well as the surface thermal diffusivity, D{sub S}. By varying the fringe spacing of the grating, this technique has the potential to separate the signal contributions to the expansion of the lattice in the perpendicular and parallel directions. In the data presented here a large fringe spacing was used, thus the dominant contribution to the rising edge of the signal was expansion perpendicular to the surface. Comparison of he results with a straightforward thermal model yields good agreement over a range of temperatures (20--300{degrees}K). Values for D{sub S} in GaAs were measured and found to be in reasonable agreement with bulk values above 50{degrees}K. Below 50{degrees}K, D{sub S} were determined to be up to an order of magnitude slower than the bulk diffusivity due to increased phonon boundary scattering. The applicability and advantages of the TG technique for studying photothermal and photoacoustic phenomena are discussed.

Pennington, D.M.

1992-04-01T23:59:59.000Z

258

The X-ray microscopy beamline UE46-PGM2 at BESSY  

SciTech Connect (OSTI)

The Max Planck Institute for Metal Physics in Stuttgart and the Helmholtz Center Berlin operate a soft X-ray microscopy beamline at the storage ring BESSY II. A collimated PGM serves as monochromator for a scanning X-ray microscope and a full field X-ray microscope at the helical undulator UE46. The selection between both instruments is accomplished via two switchable focusing mirrors. The scanning microscope (SM) is based on the ALS STXM microscope and fabricated by the ACCEL company. The full field microscope (FFM) is currently in operation at the U41-SGM beamline and will be relocated to its final location this year.

Follath, R.; Schmidt, J. S. [Helmholtz-Center Berlin, Albert-Einstein-Strasse 15, 12489 Berlin (Germany); Weigand, M. [Max Planck Institute for Metals Research, Heisenbergstrasse 3, 70569 Stuttgart (Germany); Fauth, K. [University Erlangen, Experimental Physics 4, Am Hubland, 97074 Wuerzburg (Germany)

2010-06-23T23:59:59.000Z

259

Development of a soft x-ray diffractometer for a wideband multilayer grating with a novel layer structure in the 2-4 keV range  

SciTech Connect (OSTI)

We have been developing a wavelength-dispersive soft x-ray spectrograph covering an energy region of 50-4000 eV to attach to a conventional electron microscope. Observation of soft x-ray emission in the 2-4 keV range needs a multilayer coated grating. In order to evaluate the performance of the optical component in the energy region, a goniometric apparatus has been newly developed and the preliminary performance has been tested using synchrotron radiation.

Imazono, Takashi; Koike, Masato; Kawachi, Tetsuya; Hasegawa, Noboru; Koeda, Masaru; Nagano, Tetsuya; Sasai, Hiroyuki; Oue, Yuki; Yonezawa, Zeno; Kuramoto, Satoshi; Terauchi, Masami; Takahashi, Hideyuki; Handa, Nobuo; Murano, Takanori [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215 (Japan); Device Dept., Shimadzu Corp., 1 Nishinokyo-Kuwabara-cho, Nakagyo-ku, Kyoto 604-8511 (Japan); IMRAM, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); ECBU, JEOL Ltd., 3-1-2 Musashino, Akishima, Tokyo 196-8558 (Japan)

2012-07-11T23:59:59.000Z

260

Measurement of electron-hole friction in an n-doped GaAs/AlGaAs quantum well using optical transient-grating spectroscopy  

SciTech Connect (OSTI)

We use phase-resolved transient grating spectroscopy to measure the drift and diffusion of electron-hole density waves in a semiconductor quantum well. The unique aspects of this optical probe allow us to determine the frictional force between a two-dimensional Fermi liquid of electrons and a dilute gas of holes. Knowledge of electron-hole friction enables prediction of ambipolar dynamics in high-mobility electron systems.

Yang, Luyi; Koralek, J. D.; Orenstein, J.; Tibbetts, D. R.; Reno, J. L.; Lilly, M. P.

2011-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

X-ray grating interferometer for materials-science imaging at a low-coherent wiggler source  

Science Journals Connector (OSTI)

X-ray phase-contrast radiography and tomography enable to increase contrast for weakly absorbing materials. Recently x-raygratinginterferometers were developed that extend the possibility of phase-contrast imaging from highly brilliant radiation sources like third-generation synchrotron sources to non-coherent conventional x-ray tube sources. Here we present the first installation of a three gratingx-rayinterferometer at a low-coherence wigglersource at the beamline W2 (HARWI II) operated by the Helmholtz-Zentrum Geesthacht at the second-generation synchrotron storage ring DORIS (DESY Hamburg Germany). Using this type of the wiggler insertion device with a millimeter-sized source allows monochromatic phase-contrast imaging of centimeter sized objects with high photon flux. Thus biological and materials-science imaging applications can highly profit from this imaging modality. The specially designed gratinginterferometer currently works in the photon energy range from 22 to 30 keV and the range will be increased by using adapted x-ray optical gratings. Our results of an energy-dependent visibility measurement in comparison to corresponding simulations demonstrate the performance of the new setup.

Julia Herzen; Tilman Donath; Felix Beckmann; Malte Ogurreck; Christian David; Jrgen Mohr; Franz Pfeiffer; Andreas Schreyer

2011-01-01T23:59:59.000Z

262

Damage Detection of CFRP Plates by Full-Spectral Analysis of a Fibre Bragg Grating Sensor Signal  

SciTech Connect (OSTI)

This paper describes the measurement of average strain, strain distribution and vibration of cantilever beam made of Carbon Fiber Reinforced Plastics (CFRP), using a single Fibre Bragg Grating (FBG) sensor mounted on the beam surface. Average strain is determined from the displacement of the peak wavelength of reflected light from the FBG sensor. Unstrained reference FBG sensors were used to compensate for temperature drift and the photoelastic coefficient (P{sub e}), which was used to calculate the gauge factor. Measured strains agree with those measured by a resistance foil strain gauge attached to the sample. Stress distributions are measured by monitoring the variation in the full width half maximum (FWHM) values of the reflected spectrum, using a proposed optical analytical model, described in the paper. FWHM values were measured for both the cantilever test beam and a for a reference beam, loaded using a four-point bending rig. The trend of the stress distribution for the test beam matches with our analytical model, however with a relatively large noise present in the experimentally determined data. The vibration of cantilever beam was measured by temporal analysis of the peak reflection wavelength. This technique is very stable as measurements are not affected by variations in the signal amplitude. Finally an application of FBG sensors for damage detection of CFRP plates is demonstrated, by measuring the average strain and natural frequency. With small defects of different sizes applied to the CFRP plate, average strains were seen to increase with damage size and the natural frequency decreased with damage size.

Mizutani, Yoshihiro [Optical Non-Destructive Testing Laboratory, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2600 GB Delft (Netherlands); Solid and Structures Engineering Laboratory, Department of Mechanical Sciences and Engineering, Tokyo Institute of Technology, Japan, 2-12-1-I1-70, Ookayama, Meguro-ku, Tokyo 152-8552 (Japan); Groves, Roger M. [Optical Non-Destructive Testing Laboratory, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2600 GB Delft (Netherlands)

2010-05-28T23:59:59.000Z

263

High resolution bragg focusing optics for synchrotron monochromators and analyzers  

SciTech Connect (OSTI)

A number of different applications for high resolution Bragg Focusing Optics are reviewed. Applications include Sagittal Focusing, Energy Dispersive optics for x-ray absorption and diffraction, a curved analyzer-multichannel detector method for efficient acquisition of powder and small angle scattering data, the use of Backscattering Analyzers for very high resolution inelastic scattering, and curved crystals for high energy applications.

Knapp, G.S.; Beno, M.A.; Gofron, K.J.

1997-07-01T23:59:59.000Z

264

Heydemann Algorithm for Energy Scale Linearisation  

SciTech Connect (OSTI)

Many monochromators rely on quadrature encoders for positioning optical elements like gratings or mirrors. In most cases the required accuracy is significantly higher than the pitch of the encoders and an interpolation scheme becomes necessary. The accuracy of this procedure can be significantly enhanced, if signal errors in the detection systems are compensated. We report on the implementation of this technique at the BESSY monochromators and the impact on spectroscopic data.

Follath, Rolf; Balzer, Andreas [Helmholtz-Center Berlin, Electron Storage Ring BESSY II, Albert-Einstein-Strasse 15, 12489 Berlin (Germany)

2010-06-23T23:59:59.000Z

265

High precision in-cylinder gas thermometry using Laser Induced Gratings: Quantitative measurement of evaporative cooling with gasoline/alcohol blends in a GDI optical engine  

Science Journals Connector (OSTI)

Abstract The first application of Laser Induced Thermal Gratings Spectroscopy (LITGS) for precision thermometry in a firing GDI optical engine is reported. Crank-angle resolved temperature values were derived from LITGS signals generated in fuel vapour with a pressure dependent precision in the range 0.11.0% allowing differences in evaporative or charge cooling effects arising from a variety of ethanol and methanol blends with a model gasoline fuel to be quantified. In addition, fluctuations in temperature arising from cyclic variations in compression were directly detected and measured.

Ben Williams; Megan Edwards; Richard Stone; John Williams; Paul Ewart

2014-01-01T23:59:59.000Z

266

BEAMLINE 8-2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 2 CURRENT STATUS: Open SUPPORTED TECHNIQUES: X-ray absorption spectroscopy, near edge Photoemission spectroscopy MAIN SCIENTIFIC DISCIPLINES: Materials % TIME GENERAL USE: 100% SCHEDULING: Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: Bending magnet station (soft x-ray) BEAM LINE SPECIFICATIONS: energy range grating type resolution DE/E spot size (FWHM) flux angular acceptance focused 100 - 1300 eV ~4 x 10-4 >0.1 mm2 4.0 mrad OPTICS: M0 mirror: toroidal SiC MONOCHROMATOR: 6m spherical grating monochromator (TGM) Grating Monochromator References ABSORPTION: NA INSTRUMENTATION: User Chambers on VUV Lines DATA ACQUISITION AND ANALYSIS: SPEC For questions and issues related to SPEC, contact beam line staff or send

267

The Current Performance of the Wide Range (90-2500 eV) Soft X-ray Beamline at the Australian Synchrotron  

SciTech Connect (OSTI)

The Soft X-ray beamline at the Australian synchrotron has been constructed around a collimated light Plane Grating Monochromator taking light from an Elliptically Polarized Undulator (EPU). The beamline covers a wide photon energy range between 90 to 2500 eV, using two gratings of 250 l/mm and 1200 l/mm. At present the output from the monochromator is directed into one branchline with a dedicated UHV endstation. The measured performance of the beamline in flux and resolution is shown to be very close to that of theoretical calculations.

Cowie, B. C. C.; Tadich, A.; Thomsen, L. [Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria (Australia)

2010-06-23T23:59:59.000Z

268

Theoretical analysis and experiments on antireflection coatings for laser diodes  

E-Print Network [OSTI]

was set on dB, the time constant ivas 100 ms, and the sensitivity was 10 mV. A special controller was designed and constructed to operate the monochromator and to provide a, voltage proportional to the grating position. The X-axis of the plotter ivas...

Chin, Kai Jian

1987-01-01T23:59:59.000Z

269

Accurate radiometry from space: an essential tool for climate studies  

Science Journals Connector (OSTI)

...calibration system again consists of three instruments, although one...grating. We have chosen to use three monochromators, each optimized...sufficient accuracy, is a central pillar to achieving this goal. The...efforts to ensure long-term sustainability and growth within an ever-changing...

2011-01-01T23:59:59.000Z

270

An experimental study of combustion and emissions of two types of woody biomass in a 12-MW reciprocating-grate boiler  

Science Journals Connector (OSTI)

Abstract The gaseous emissions of primary concern from biomass combustion are nitrogen oxides (NOX), carbon monoxide, and various unburned gaseous components. Detailed characterization of the gas in the hot reaction zones is necessary to study the release, formation, and evolution of the gas components. In the present study, gas temperature and concentration were measured in a 12-MWth biomass-fired reciprocating-grate boiler operated with over-fire air and flue-gas recirculation. Temperature measurement was combined with flue gas quenching and sample gas extraction using two water-cooled stainless-steel suction pyrometers. The concentration profiles of O2, NO, and CO were experimentally determined throughout the furnace, and the profile gas temperature was measured in several positions inside the furnace for the two types of woody biomass studied. For both fuels, the gas temperature varied between approximately 450C (average primary chamber temperature) and 1200C (average secondary chamber temperature). The concentration profiles of CO and O2 suggested no conclusive difference between the two types of biomass. However, the local mean concentrations of NO and NOX emission factors (measured in the stack) were higher for Greenery fuel due to its higher nitrogen content than that of Standard fuel.

Hamid Sefidari; Narges Razmjoo; Michael Strand

2014-01-01T23:59:59.000Z

271

Beamline 7.3.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7.3.1 Print 7.3.1 Print Photoemission electron microscope PEEM2 Scientific disciplines: Magnetism, materials, surface science, polymers Note: This beamline is NOT open to general users. GENERAL BEAMLINE INFORMATION Operational Yes, but not open to users Source characteristics Bend magnet Energy range 180-1500 eV Monochromator SGM Calculated flux (1.9 GeV, 400 mA) 3 x 1012 photons/s/0.1%BW at 800 eV (linearly polarized) Resolving power (E/ΔE) 1,000 Endstations Photoemission electron microscope (PEEM2) Characteristics X-ray absorption spectromicroscopy Spatial resolution Below 100 nm Detectors Slow scan CCD Spot size at sample 30 x 30 µm Sample format UHV-compatible flat, conductive samples up to 1 cm2 in area Sample preparation Sputter-cleaning, heating, e-beam and sputter evaporation, LEED, transfer capability, magnet (1 kOe)

272

Beamline 7.3.1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7.3.1 Print 7.3.1 Print Photoemission electron microscope PEEM2 Scientific disciplines: Magnetism, materials, surface science, polymers Note: This beamline is NOT open to general users. GENERAL BEAMLINE INFORMATION Operational Yes, but not open to users Source characteristics Bend magnet Energy range 180-1500 eV Monochromator SGM Calculated flux (1.9 GeV, 400 mA) 3 x 1012 photons/s/0.1%BW at 800 eV (linearly polarized) Resolving power (E/ΔE) 1,000 Endstations Photoemission electron microscope (PEEM2) Characteristics X-ray absorption spectromicroscopy Spatial resolution Below 100 nm Detectors Slow scan CCD Spot size at sample 30 x 30 µm Sample format UHV-compatible flat, conductive samples up to 1 cm2 in area Sample preparation Sputter-cleaning, heating, e-beam and sputter evaporation, LEED, transfer capability, magnet (1 kOe)

273

Performance measurements at the SLS SIM beamline  

SciTech Connect (OSTI)

The Surface/Interface: Microscopy beamline of the Swiss Light Source started operation in 2001. In 2007 the beamline has been significantly upgraded with a second refocusing section and a blazed grating optimized for high photon flux. Two Apple II type undulators with a plane grating monochromator using the collimated light scheme deliver photons with an energy from 90eV to about 2keV with variable polarization for the photoemission electron microscope (PEEM) as the primary user station. We measured a focus of (45x60) {mu}m({nu}xh) and a photon flux > 10{sup 12} photon/s for all gratings. Polarization switching within a few seconds is realized with the small bandpass of the monochromator and a slight detuning of the undulator.

Flechsig, U.; Nolting, F.; Fraile Rodriguez, A.; Krempasky, J.; Quitmann, C.; Schmidt, T.; Spielmann, S.; Zimoch, D. [Paul Scherrer Institut, Swiss Light Source, 5232 Villigen PSI (Switzerland)

2010-06-23T23:59:59.000Z

274

BEAMLINE 4-1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 1 CURRENT STATUS: Open SUPPORTED TECHNIQUES: X-ray Absorption Spectroscopy MAIN SCIENTIFIC DISCIPLINES: Environmental / Materials / Chemistry / Biology % TIME GENERAL USE: 100% SCHEDULING: Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: 20-pole, 2.0-Tesla Wiggler, 0.75 mrad, side station BEAM LINE SPECIFICATIONS: energy range grating type resolution DE/E spot size flux angular acceptance unfocused 5,500-38,000eV 10-4 4x18mm 0.75 mrad OPTICS: M0 mirror: Flat, bent vertically collimating, 1 m, Si, Rh-coated, cutoff 9-23 keV, LN2-cooled monochromator. Energies over 22keV are run with the mirror out. MONOCHROMATOR: Si(220) f=0° or Si(220) f=90° double-crystal, non-fixed exit slit Monochromator Crystal Glitch Library

275

Time and spectrum-resolving mutiphoton correlator for 300-900 nm  

E-Print Network [OSTI]

We demonstrate a single-photon sensitive spectrometer in the visible range, which allows us to perform time-resolved and multi-photon spectral correlation measurements. It is based on a monochromator composed of two gratings, collimation optics and an array of single photon avalanche diodes. The time resolution can reach $110$ ps and the spectral resolution is $2$ nm/pixel, limited by the design of the monochromator. This technique can easily be combined with commercial monochromators, and can be useful for joint spectrum measurements of two photons emitted in the process of parametric down conversion, as well as time-resolved spectrum measurements in optical coherence tomography or medical physics applications.

Johnsen, Kelsey D; Scarcella, Carmelo; Thibault, Marilyne; Tosi, Alberto; Jennewein, Thomas

2014-01-01T23:59:59.000Z

276

Time and spectrum-resolving mutiphoton correlator for 300-900 nm  

E-Print Network [OSTI]

We demonstrate a single-photon sensitive spectrometer in the visible range, which allows us to perform time-resolved and multi-photon spectral correlation measurements. It is based on a monochromator composed of two gratings, collimation optics and an array of single photon avalanche diodes. The time resolution can reach $110$ ps and the spectral resolution is $2$ nm/pixel, limited by the design of the monochromator. This technique can easily be combined with commercial monochromators, and can be useful for joint spectrum measurements of two photons emitted in the process of parametric down conversion, as well as time-resolved spectrum measurements in optical coherence tomography or medical physics applications.

Kelsey D. Johnsen; Piotr Kolenderski; Carmelo Scarcella; Marilyne Thibault; Alberto Tosi; Thomas Jennewein

2014-06-17T23:59:59.000Z

277

E-Print Network 3.0 - acceptance crystal monochromator Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

... Source: Controlled Fusion Atomic Data Center (CFADC) Collection: Plasma Physics and Fusion 13 MACS -A New High Intensity Cold Neutron Spectrometer at NIST Summary: V (Ei2.1...

278

Neutron Diffraction Performance Based on Multiple Reflection Monochromator for High-Resolution Neutron Radiography  

Science Journals Connector (OSTI)

The effects of multiple Bragg reflections in single crystal can be observed when more than one set of planes are simultaneously operative for a given wavelength i.e. when more than two reciprocal lattice point...

Pavel Mikula; Miroslav Vrana

2007-01-01T23:59:59.000Z

279

Warm absorbers in X-rays (WAX), a comprehensive high resolution grating spectral study of a sample of Seyfert galaxies: I. A global view and frequency of occurrence of warm absorbers  

E-Print Network [OSTI]

We present results from a homogeneous analysis of the broadband 0.3-10 keV CCD resolution as well as of soft X-ray high-resolution grating spectra of a hard X-ray flux-limited sample of 26 Seyfert galaxies observed with XMM-Newton. Our goal is to characterise the warm absorber (WA) properties along the line-of-sight to the active nucleus. We significantly detect WAs in $65\\%$ of the sample sources. Our results are consistent with WAs being present in at least half of the Seyfert galaxies in the nearby Universe, in agreement with previous estimates . We find a gap in the distribution of the ionisation parameter in the range $0.5warm absorber flow is probably constituted by a clumpy distribution of discrete clouds rather than a continuous medium. The distribution of the WA column densities for the sources with broad Fe K$\\alpha$ lines are similar to those sources which do not have broadened emission l...

Laha, Sibasish; Dewangan, Gulab C; Chakravorty, Susmita; Kembhavi, Ajit K

2014-01-01T23:59:59.000Z

280

Fiber Grating Moisture And Chemical Sensing System  

DOE Patents [OSTI]

A vane for a stator of a variable-geometry turbine, in particular for aeronautical engines, has an airfoil profile and a pair of hinge portions, which are carried by the airfoil profile and enable the airfoil profile to be coupled to a support structure of the stator so as to be rotatable about an axis of adjustment; the vane also has internal channels that allow a flow of air to pass through in order to cool the hinge portions.

Schipani, Claudia (Turin, IT); Spano, Ennio (Turin, IT); Dalle Crode, Domenico (Turin, IT)

2004-01-27T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

COS FUV Grating Holographic Recording Specification  

E-Print Network [OSTI]

-12-98 J. Andrews, COS Experiment Manager, CU/CASA Date Approved By: J. Green 11-13-98 J. C. Green, COS/Handling:........................................................................................ 6 3.4.3 Solvents.....................................................

Colorado at Boulder, University of

282

Submicrometer gratings for solar energy applications  

Science Journals Connector (OSTI)

Diffractive optical structures for increasing the efficiency of crystalline silicon solar cells are discussed. As a consequence of the indirect band gap, light absorption becomes very...

Heine, Claus; Morf, Rudolf H

1995-01-01T23:59:59.000Z

283

Acknowledgments: we are grateful to Dr Descazeaud,  

E-Print Network [OSTI]

transfusion reaction in children with sickle cell disease Mariane de Montalembert,1 Marie-Dominique Dumont,2 is a cornerstone of the management of sickle cell disease but carries a high risk of hemolytic transfusion reaction and mimicked other complications of sickle cell disease. In most of our cases, no new antibody was identified

Boyer, Edmond

284

Higher Order Suppressor (HOS) for the PolLux Microspectroscope Beamline at the Swiss Light Source SLS  

SciTech Connect (OSTI)

The mechanical design and performance of a device to suppress higher orders of a spherical grating monochromator at a constant deviation angle is described. The higher order suppressor (HOS) is used for a scanning transmission x-ray microspectroscope beamline (PolLux) at a bending magnet of the Swiss Light Source (SLS). The instruments allow microspectroscopy in polymer science, of biological samples in the water window as well as the study of magnetic materials with circular or linear polarized light in a photon energy range of 200 eV to 1400 eV. The HOS uses three mirrors acting as a low pass filter for soft x-rays to improve the absorption spectroscopy of carbon, oxygen and nitrogen 1s core levels. The successful installation and operation of the HOS located after the monochromator is reported. First results obtained using samples from materials research and environmental sciences exemplify the improved spectroscopy capabilities of the instrument.

Frommherz, U.; Stefani, R.; Ellenberger, U. [Paul Scherrer Institut, Division of Mechanical Engineering Sciences, 5232 Villigen PSI (Switzerland); Raabe, J.; Watts, B. [Paul Scherrer Institut, Swiss Light Source, 5232 Villigen PSI (Switzerland)

2010-06-23T23:59:59.000Z

285

High resolution ion Doppler spectroscopy at Prairie View Rotamak  

SciTech Connect (OSTI)

A fast ion Doppler spectroscopy (IDS) diagnostic system is installed on the Prairie View Rotamak to measure ion temperature and plasma flow. The diagnostic employs a single channel photomultiplier tube and a Jarrell-Ash 50 monochromator with a diffraction grating line density of 1180 lines/mm, which allows for first order spectra of 200-600 nm. The motorized gear of the monochromator allows spectral resolution of 0.01 nm. Equal IDS measurements are observed for various impurity emission lines of which carbon lines exhibit stronger intensities. Furthermore, the diagnostics is examined in an experiment where plasma experiences sudden disruption and quick recovery. In this case, the IDS measurements show {approx}130% increase in ion temperature. Flow measurements are shown to be consistent with plasma rotation.

Houshmandyar, Saeid; Yang Xiaokang [Solar Observatory Department, Prairie View A and M University, Prairie View, Texas 77446 (United States); Magee, Richard [Department of Physics, West Virginia University, Morgantown, West Virginia 26506 (United States)

2012-10-15T23:59:59.000Z

286

Measurement of vibrational spectrum of liquid using monochromated scanning transmission electron microscopyelectron energy loss spectroscopy  

Science Journals Connector (OSTI)

......application to lithium-ion battery and hence has been well studied...Atom-by-atom spectroscopy at graphene edge. Nature (2010) 468...temperature molten salts as lithium battery electrolyte. Electrochim...additive systems as lithium-ion battery ionic liquid electrolytes......

Tomohiro Miyata; Mao Fukuyama; Akihide Hibara; Eiji Okunishi; Masaki Mukai; Teruyasu Mizoguchi

2014-10-01T23:59:59.000Z

287

High-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

...R. F. 1996 Electron energy-loss spectroscopy in...microscope, 2nd edn. New York, NYPlenum. Egerton...Transmission electron energy loss spectrometry in materials...energy-gain spectroscopy. New J. Phys. 10, 1367-2630...

2009-01-01T23:59:59.000Z

288

An Energy-Stabilized Varied-Line-Space-Monochromator UndulatorBeam Line for PEEM Illumination and Magnetic Circular Dichroism  

SciTech Connect (OSTI)

A new undulator beam line has been built and commissioned at the Advanced Light Source for illumination of the PEEM3 microscope. The beam line delivers high flux beams over an energy range from C1s through the transition metals to include the M edges of the magnetic rare earth elements. We present details of the optical design, and data on the performance of the zero-order tracking of the photon energy.

Warwick, Tony; McKinney, Wayne; Domning, Ed; Doran, Andrew; Padmore, Howard

2006-06-01T23:59:59.000Z

289

X-ray instrumentation for the photon factory  

SciTech Connect (OSTI)

The Photon Factory is one of the world's largest synchroton radiation light sources, the beam lines of which supply intense sources of vacuum UV, soft and hard X-rays. About 30 measuring instruments have been purpose-built, and this book describes the development and construction of the X-ray instrumentation. Given the multifunctional nature of the Photon Factory, it may be expected that the instrumentation serving it fulfills a variety of purposes including: reflection imaging systems; diffraction grating fabrication; monochromators; polarizers; analyzers; detectors; data collection systems; cameras; and goniometers.

Hosoya, S.; Iitaka, Y.; Hashizume, H.

1987-01-01T23:59:59.000Z

290

A KB-Focusing Mirror Pair for a VUV-Raman Spectrometer at FLASH - Mirror Metrology and Ray Tracing Results  

SciTech Connect (OSTI)

A plane mirror and two strongly curved plane elliptical mirrors comprising the refocusing system downstream the plane grating monochromator at FLASH in DESY have been characterized with the Nanometer Optical Component Measuring Machine at the BESSY-II Optics Laboratory of the Helmholtz Zentrum Berlin. Based on the measurement results the two elliptical cylinders were optimized by deterministic surface finishing technology (Ion Beam Finishing). The expected focusing performance was verified by ray tracings after each ion beam finish iteration using the measured topography results.

Siewert, Frank [Helmholtz Zentrum Berlin / BESSY II, Albert-Einstein-Str. 15, D-12489 Berlin (Germany); Reininger, Ruben [Scientific Answers and Solutions, 77 Constantine Way, Mount Sinai, NY 11766 (United States); Ruebhausen, Michael A. [CFEL, Center for Free Electron Laser Science, Notkestr. 15, 20355 Hamburg (Germany)

2010-06-23T23:59:59.000Z

291

VerDate 112000 14:19 Jun 12, 2001 Jkt 194001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\\FR\\FM\\13JNR2.SGM pfrm07 PsN: 13JNR2 June 13, 2001  

E-Print Network [OSTI]

Part 197 Public Health and Environmental Radiation Protection Standards for Yucca Mountain, NV; Final Health and Environmental Radiation Protection Standards for Yucca Mountain, NV AGENCY: Environmental repository at Yucca Mountain, Nevada. Section 801 of the Energy Policy Act of 1992 (EnPA, Pub. L. 102

292

VerDate jul2003 16:57 Aug 19, 2005 Jkt 205001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\\FR\\FM\\22AUP2.SGM 22AUP2 August 22, 2005  

E-Print Network [OSTI]

Health and Environmental Radiation Protection Standards for Yucca Mountain, Nevada; Proposed Rule #12;Ver and Environmental Radiation Protection Standards for Yucca Mountain, NV AGENCY: Environmental Protection Agency of in the potential repository at Yucca Mountain, Nevada. Section 801(a) of the Energy Policy Act of 1992 (EnPA, Pub

293

Optical Design of VLS-PGM Soft X-Ray Beamline on Indus-2  

SciTech Connect (OSTI)

The optical design of a soft x-ray beamline on the bending magnet of Indus-2 synchrotron source is presented. A Varied Line Spacing Plane Grating Monochromator (VLS-PGM) was adopted with Hettrick type optics. The VLS-PGM consists of a spherical mirror and three interchangeable gratings of line densities 1200 l/mm, 400 l/mm and 150 l/mm to efficiently cover the energy region 50-1500 eV. The VLS groove parameters were obtained by minimizing defocus aberration, coma and spherical aberration. The overall performance of the beamline was estimated by detailed raytracing calculations. The beamline design, results of the raytracing calculations and the expected performances are presented.

Prasad, T. T.; Modi, M. H.; Lodha, G. S. [X-ray Optics Section, Indus Synchrotrons Ultilization Division, Raja Ramanna Centre for Advanced Technology, Indore (India)

2010-06-23T23:59:59.000Z

294

A new scanning photoemission microscope for ELETTRA: SuperMAXIMUM  

SciTech Connect (OSTI)

High brightness, third-generation synchrotrons allow diffraction-limited performance and large flux for scanning photoemission microscopes. A new microscope, SuperMAXIMUM, is being developed at the University of Wisconsin Center for X ray Lithography in collaboration with the Sincrotrone Trieste. The beamline, being built in Trieste, uses a variable angle spherical grating monochromator (VASGM). A combination of rotation of a plane mirror and rotation of the spherical grating keeps the slit positions and beam directions fixed. The microscope objectives are normal-incidence, multilayer-coated Schwarzschild objectives. The project, which is nearing completion, utilizes novel designs for optics alignment, sample rastering mechanics, and software control. We will discuss the project status, new designs, and techniques. {copyright} {ital 1996 American Institute of Physics.}

Welnak, J.T.; Solak, H.; Wallace, J.; Cerrina, F.; Barbo, F.; Bertolo, M.; Bianco, A.; Di Fonzo, S.; Fontana, S.; Jark, W.; Mazzolini, F.; Rosei, R.; Savoia, A.; Underwood, J.; Margaritondo, G. [University of WI--Center for X ray Lithography, 3731 Schneider Drive, Stoughton, WI 53589 (United States)] [University of WI--Center for X ray Lithography, 3731 Schneider Drive, Stoughton, WI 53589 (United States); [Sincrotrone Trieste, Padriciano 99, 34012, Trieste (Italy); [Lawrence Berkeley Laboratory, Center for X ray Optics, 1 Cyclotron Road, 80-101, Berkeley, CA 94720 (United States); [Institut de Physique Appliqee, Ecole Polytechnique Federale, CH-1015, Lausanne (Switzerland)

1996-09-01T23:59:59.000Z

295

COS NUV Grating Substrate Specification Date: August 20, 2001  

E-Print Network [OSTI]

Experiment Manager, CU/CASA Date Approved By: J. C. Green, COS Principal Investigator, CU/CASA Date Center/Handling: ............................................................................................3 3.4.3 Solvents.........................................................................................................

Colorado at Boulder, University of

296

Observation of pulsed medical ultrasound gratings in the optical farfield  

Science Journals Connector (OSTI)

A simple optical method is described for studying ultrasonic pulses as short as two or three cycles in duration in the low?megahertz frequency range. An incident collimated light beam having a width of one ultrasound wavelength is observed in the optical farfield of the ultrasonicgrating midway between the maxima of the central and first diffraction orders. A close approximation to both the amplitude and phase of the acoustical pressure along the light path is obtained. The simplicity and reproducibility of this method warrants its consideration as a procedure for calibration and comparison of the transmit pulse characteristics of medical ultrasound systems. [Work supported by NINCDS Grant NS?06655 and a grant from North Carolina United Way.

W. A. Riley; R. W. Barnes

1977-01-01T23:59:59.000Z

297

Numerical solution of an inverse diffraction grating problem from ...  

E-Print Network [OSTI]

Feb 5, 2013 ... An efficient continuation method is developed to recover the Fourier coefficients of the periodic ... design problems in diffractive optics, it is intended to design a .... ?n ? 0; the free-space quasi-periodic Green's function is.

2013-02-02T23:59:59.000Z

298

Modulation of near-field heat transfer between two gratings  

E-Print Network [OSTI]

We present a theoretical study of near-field heat transfer between two uniaxial anisotropic planar structures. We investigate how the distance and relative orientation (with respect to their optical axes) between the objects affect the heat flux. In particular, we show that by changing the angle between the optical axes it is possible in certain cases to modulate the net heat flux up to 90% at room temperature, and discuss possible applications of such a strong effect.

Svend-Age Biehs; Felipe S. S. Rosa; Philippe Ben-Abdallah

2011-05-18T23:59:59.000Z

299

Inflight calibration of the XMMNewton Reflection Grating Spectrometers  

E-Print Network [OSTI]

, 5232 Villigen, Switzerland c Space Research Organization of the Netherlands, Sorbonnelaan 2, 3584 CA Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA ABSTRACT of the focused light and diffracts it to a secondary focus, the other half being available for two of the three

Audard, Marc

300

Spectrally broadband channeled imaging polarimeter using polarization gratings  

E-Print Network [OSTI]

polarimeters (CIP) [1]. Here, we focus on developing the technique of CIP [3-6]. In CIP, the 2-dimensional an instrumentation improvement for CIP, described in our previous publications. For further theoretical derivations version of our white-light CIP, originally based on a modified Sagnac interferometer [8, 9

Dereniak, Eustace L.

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Reflective silicon binary diffraction grating for visible wavelengths  

E-Print Network [OSTI]

-mail: marco.fiorentino@hp.com Received January 31, 2011; revised March 17, 2011; accepted March 19, 2011

Li, Jingjing

302

Performance and optimization of X-ray grating interferometry  

Science Journals Connector (OSTI)

...Kundel, and RV. Metter 2000 Handbook of medical imaging: physics and psychophysics, 2nd edn...Proc. Medical Imaging 2013: Physics of Medical Imaging, Lake Buena...Proc.Medical Imaging 2011: Physics ofMedical Imaging, Lake Buena...

2014-01-01T23:59:59.000Z

303

Dependence of surface plasmon polarization conversion on the grating pitch  

Science Journals Connector (OSTI)

A polarization conversion of linearly polarized light incident on a cross-corrugated metal surface may occur due to the optical energy exchange between the surface plasmon (SP)...

Sabat, Ribal Georges; Rochon, Nathan; Rochon, Paul

2010-01-01T23:59:59.000Z

304

Fiber Bragg Grating Cryo-Sensors for Superconducting Accelerator Magnets  

E-Print Network [OSTI]

The design, fabrication and tests of the new generation of superconducting magnets for the High Luminosity upgrade of the Large Hadron Collider (HL - LHC) require the support of an adequate sensing technology able to assure the integrity of the strain sensitive and brittle superconducting cables through the whole service life of the magnet: assembly up to 150 MPa, cool down to 1.9 K and powering up to about 16 kA. A precise temperature monitoring is also needed in order to guarantee the safe working condition of the superconducting cables in the power transmission lines (SC - Link) designed to feed the magnet over long distance. Temperature and strain FBGs based monitoring systems have been implemented in the first SC-Link prototype and in two subscale dipole magnets and tested in the cryogenic test facility at CERN at 30 K, 77 K and 1.9 K.

Chiuchiolo, A; Perez, J; Bajas, H; Consales, M; Giordano, M; Breglio, G; Cusano, A

2014-01-01T23:59:59.000Z

305

ReseaRch at the University of Maryland Climate Mitigation and Adaptation  

E-Print Network [OSTI]

-shrinking budgets. Steve Fetter models energy scenarios to helps policy makers see that a viable low-carbon future's Second Generation Model (SGM) is a global general-equilibrium model that projects energy consumption, agriculture, energy, energy-intense industries, household consumption, and government expenditure. SGM offers

Hill, Wendell T.

306

Difference of operation mechanisms in SWNTs network FETs studied via scanning gate microscopy  

SciTech Connect (OSTI)

Field effect transistors (FETs) whose channel is composed of a network of single wall carbon nanotubes (SWNTs) have been studied to investigate the mechanism of the device operation via scanning gate microscopy (SGM) at room temperature. We observed different SGM response in networks of SWNTs either synthesized by CoMoCAT process or semiconducting enriched by density gradient ultracentrifuge process. In the former case, SGM response was observed at specific inter-tube junctions suggesting a Schottky junction formed with semiconducting and metallic SWNTs in the network. In contrast, multiple concentric rings in the SGM response are observed within the tubes in a network of the latter SWNTs suggesting a possibility of quantum mechanical transport at room-temperature. Different type of SGM responses are confirmed in the two kinds of SWNTs networks, nevertheless such active positions would likely have an important role in the FET operation mechanism in each network.

Wei, Xiaojun; Matsunaga, Masahiro; Yahagi, Tatsurou; Maeda, Kenji; Ochiai, Yuichi; Aoki, Nobuyuki [Graduate School of Advanced Integration Science, Chiba University, Chiba 263-8522 (Japan); Bird, Jonathan P. [Department of Electrical Engineering, University at Buffalo, the State University of New York, Buffalo, NY 14260-1920 (United States); Ishibashi, Koji [Advanced Device Laboratory, RIKEN, Wako, Saitama 351-0198 (Japan)

2013-12-04T23:59:59.000Z

307

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

308

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

309

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.2 Print 0.2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

310

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

311

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

312

Extreme ultraviolet diagnosis of a neutral-beam-heated mirror machine  

SciTech Connect (OSTI)

Extreme ultraviolet emissions from the LLL 2XIIB fusion research experiment have been studied. (2XIIB was a magnetic-mirror-plasma-confinement device; beams of high-energy (20 keV) neutral deuterium created a high-density, high-temperature plasma.) A normal-incidence concave-grating monochromator, equipped with a windowless photomultiplier tube, was used to measure emissions in the spectral region from 400 Angstrom to 1600 A. Emissions of oxygen, titanium, carbon, nitrogen, and deuterium were identified; the oxygen brightnesses at times exceeded 10/sup 18/ ph-s/sup -1/-cm/sup -2/-sr/sup -1/. A survey of the emission characteristics found the oxygen concentration was 3%, the other impurities had concentrations near 0.4%. The radiated power loss was about 5% of the deposited neutral beam power.

Drake, R.P.

1980-07-01T23:59:59.000Z

313

Construction of a New VUV/Soft X-ray Undulator Beamline BL-13A in the Photon Factory for Study of Organic Thin Films and Biomolecules Adsorbed on Surfaces  

SciTech Connect (OSTI)

A planar undulator beamline, BL-13A, covering 30-1,000 eV has been constructed in the Photon Factory. The main scientific targets are investigations of organic thin films and biomolecules adsorbed on well-defined surfaces using angle-resolved photoelectron spectroscopy, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy. A variable-included-angle Monk-Gillieson mounting monochromator with varied-line-spacing plane gratings is used to achieve a high photon flux of 10{sup 10}-10{sup 12} photons/s with a high resolution (E/{Delta}E) of 7,000-30,000. A typical spot size on the sample position is estimated to be 130 {mu}m (horizontal)x40 {mu}m (vertical). After commissioning, BL-13A will be open for users from January 2010.

Mase, Kazuhiko; Toyoshima, Akio; Kikuchi, Takashi; Tanaka, Hirokazu; Amemiya, Kenta; Ito, Kenji [Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2010-06-23T23:59:59.000Z

314

New Soft X-ray Beamline (BL10) at the SAGA Light Source  

SciTech Connect (OSTI)

A new soft X-ray beamline (BL10) at the SAGA Light Source (SAGA-LS) was constructed at the end of 2008. Commissioning of this new beamline started at the beginning of 2009. Synchrotron radiation from a variably polarizing undulator (APPLE-II) can be used in this beamline. The obtained light is monochromatized by a varied-line-spacing plane grating monochromator with the variable included angle mechanism. Its designed resolving power and photon flux are 3,000-10,000 and 10{sup 12}-10{sup 9} photons/s at 300 mA, respectively. The performance test results were generally satisfactory. An overview of the optical design of the beamline and the current status of commissioning are reported.

Yoshimura, D.; Setoyama, H.; Okajima, T. [Beamline group, SAGA Light Source, 8-7 Yayoigaoka, Tosu, Saga 841-0005 (Japan)

2010-06-23T23:59:59.000Z

315

New Developments in Femtosecond Soft X-ray Spectroscopy  

SciTech Connect (OSTI)

Recent instrumentation developments in X-ray spectroscopy for ultra-fast time-resolved measurements with soft X-rays done in HZB Berlin during the last years are described. The significant performance improvements achieved this way are based on Fresnel diffraction from structures being fabricated on a surface of a total externally reflecting mirror. The first type of this spectrometer, an off-axis reflection zone plate, has been implemented at the BESSY Femtoslicing setup and shows on the order of 20 times higher flux in the focal plane compared to the classical grating monochromator beamline. It has proven to serve very precise experiments with a time resolution down to 100 fs on magnetic materials after optical laser pulse excitation.

Erko, A.; Firsov, A.; Holldack, K. [Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Elektronenspeicherring BESSY II, Albert Einstein str.15, Berlin (Germany)

2010-06-23T23:59:59.000Z

316

A high-order harmonic generation apparatus for time- and angle-resolved photoelectron spectroscopy  

SciTech Connect (OSTI)

We present a table top setup for time- and angle-resolved photoelectron spectroscopy to investigate band structure dynamics of correlated materials driven far from equilibrium by femtosecond laser pulse excitation. With the electron-phonon equilibration time being in the order of 12 ps it is necessary to achieve sub-picosecond time resolution. Few techniques provide both the necessary time and energy resolution to map non-equilibrium states of the band structure. Laser-driven high-order harmonic generation is such a technique. In our experiment, a grating monochromator delivers tunable photon energies up to 40 eV. A photon energy bandwidth of 150 meV and a pulse duration of 100 fs FWHM allow us to cover the k-space necessary to map valence bands at different k{sub z} and detect outer core states.

Frietsch, B.; Gahl, C.; Teichmann, M.; Weinelt, M. [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany)] [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany); Carley, R. [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany) [Freie Universitt Berlin, Arnimallee 14, 14195 Berlin (Germany); Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Dbrich, K. [Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany)] [Max-Born-Institut, Max-Born-Str. 2a, 12489 Berlin (Germany); Schwarzkopf, O.; Wernet, Ph. [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)] [Helmholtz-Zentrum Berlin fr Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin (Germany)

2013-07-15T23:59:59.000Z

317

Development of soft X-ray polarized light beamline on Indus-2 synchrotron radiation source  

SciTech Connect (OSTI)

This article describes the development of a soft x-ray beamline on a bending magnet source of Indus-2 storage ring (2.5 GeV) and some preliminary results of x-ray absorption spectroscopy (XAS) measurements using the same. The beamline layout is based on a spherical grating monochromator. The beamline is able to accept synchrotron radiation from the bending magnet port BL-1 of the Indus-2 ring with a wide solid angle. The large horizontal and vertical angular acceptance contributes to high photon flux and selective polarization respectively. The complete beamline is tested for ultrahigh vacuum (UHV) ? 10{sup ?10} mbar. First absorption spectrum was obtained on HOPG graphite foil. Our performance test indicates that modest resolving power has been achieved with adequate photon flux to carry out various absorption experiments.

Phase, D. M., E-mail: mgupta@csr.res.in; Gupta, Mukul, E-mail: mgupta@csr.res.in; Potdar, S., E-mail: mgupta@csr.res.in; Behera, L., E-mail: mgupta@csr.res.in; Sah, R., E-mail: mgupta@csr.res.in; Gupta, Ajay, E-mail: mgupta@csr.res.in [UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore, 452001 (India)

2014-04-24T23:59:59.000Z

318

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

319

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Print 2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

320

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Statistical Regularities of Variations of Optical and Statistical Regularities of Variations of Optical and Microphysical Characteristics for the Surface Aerosol A. A. Isakov and G. S. Golitsyn A.M. Obukhov Institute of Atmospheric Physics Moscow, Russia Introduction Daily spectropolarimeter measurements were carried out from February to March 1999, February to November 2000, and February to December 2001 at the Zvenigorod Scientific Station of the A.M. Obukhov Institute of Atmospheric Physics. The spectropolarimeter measures the spectral dependencies of the two polarized components of directed scattering coefficient. The light source is based on the grating monochromator with spectral region λ = 0.4 - 0.75 µm. Three photometers with photomultipliers as photodetectors are mounted on the

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2.0.2 Print 2.0.2 Print Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

322

VerDate Aug2005 15:14 Feb 03, 2006 Jkt 208001 PO 00000 Frm 00012 Fmt 4702 Sfmt 4702 E:\\FR\\FM\\06FEP1.SGM 06FEP1 rmajetteonPROD1PC67withPROPOSALS1  

E-Print Network [OSTI]

Register (64 FR 8014; February 18, 1999) its plan to review certain regulations, including the Egg Research in section 610 of the Regulatory Flexibility Act (RFA; 5 U.S.C. 601­612). The plan was updated in the Federal, as a matter of policy, to review certain regulations which, although they may not meet the threshold

323

VerDate Mar2010 19:12 Mar 07, 2011 Jkt 223001 PO 00000 Frm 00022 Fmt 4703 Sfmt 4703 E:\\FR\\FM\\08MRN1.SGM 08MRN1 srobinsononDSKHWCL6B1PRODwithNOTICES  

E-Print Network [OSTI]

no later than March 17, 2011. On March 24, 2011, approximately one-half hour will be reserved at the end wishing to attend this meeting must register by close of business Thursday, March 17, 2011, in order

324

VerDate jul2003 17:04 Oct 08, 2003 Jkt 203001 PO 00000 Frm 00049 Fmt 4703 Sfmt 4703 E:\\FR\\FM\\09OCN1.SGM 09OCN1 58348 Federal Register / Vol. 68, No. 196 / Thursday, October 9, 2003 / Notices  

E-Print Network [OSTI]

facility who were exposed to radiation but for whom it is not feasible to estimate their radiation dose for Disease Control and Prevention Advisory Board on Radiation and Worker Health, National Institute meeting: Name: Advisory Board on Radiation and Worker Health (ABRWH), National Institute for Occupational

325

J. Phys. F : Metal Phys., Vol. 7, No. 12, 1977. Printed in Great Britain. @ 1977 LETTER TO THE EDITOR  

E-Print Network [OSTI]

with a silicon channel-cut crystal monochromator and synchrotron radiation from the 5GeV electron synchroton NINA

Gimzewski, James

326

Pushing high-heat-load optics to the limit  

Science Journals Connector (OSTI)

A cryogenically cooled silicon monochromator and a water-cooled diamond monochromator have been tested under twice the standard power load conditions at the Advanced Photon Source. Both monochromators performed satisfactorily under these extreme power loads (several hundred watts of incident power and up to 300 W/mm2 of incident normal peak power density). The experimental data and the parameters derived to predict the performance limits of the cryogenic silicon monochromator are presented.

P. B. Fernandez

2000-01-01T23:59:59.000Z

327

Strain-tuning of periodic optical devices : tunable gratings and photonic crystals  

E-Print Network [OSTI]

The advancement of micro- and nano-scale optical devices has heralded micromirrors, semiconductor micro- and nano-lasers, and photonic crystals, among many. Broadly defined with the field of microphotonics and microelect ...

Wong, Chee Wei, 1975-

2003-01-01T23:59:59.000Z

328

Asymmetry Peculiarities of Surface-Mediated Liquid Crystals Gratings Recorded Due  

E-Print Network [OSTI]

Institute of Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine 2 Laboratoire des Colloi, National Academy of Sciences of Ukraine, Pr. Nauki 46, Kyiv 03039, Ukraine. Tel.: þ(38044)5250779; Fax

Reznikov, Yuri

329

Nonblocking WDM Switches Based on Arrayed Waveguide Grating and Limited Wavelength  

E-Print Network [OSTI]

, SUNY at Buffalo, Amherst, NY 14260, USA. qiao@cse.buffalo.edu Abstract--- Constructing wavelength of what wavelength it will be on. In this paper, we give novel constructions of strictly non­ blocking packet/burst switching. As far as we know, these are the first of such constructions. I. INTRODUCTION

Ngo, Hung Q.

330

Nonblocking WDM Switches Based on Arrayed Waveguide Grating and Limited Wavelength  

E-Print Network [OSTI]

, SUNY at Buffalo, Amherst, NY 14260, USA. qiao@cse.buffalo.edu Abstract-- Constructing wavelength of what wavelength it will be on. In this paper, we give novel constructions of strictly non- blocking packet/burst switching. As far as we know, these are the first of such constructions. I. INTRODUCTION

Ngo, Hung Q.

331

The Last Voyage of John Cabot and the Rock at Grates Cove  

Science Journals Connector (OSTI)

... IN 1497 John Cabot sailed from Bristol and discovered about three hundred leagues of the coastal regions and ... He was awarded an annual pension of 20 by Henry VII.

ARTHUR DAVIES

1955-11-26T23:59:59.000Z

332

Acknowledgements We are grateful to E. DeGiorgi, H. Matano, L ...  

E-Print Network [OSTI]

son, S. Chanillo, B. Coleman, L.C. Evans, J. M. Ghidaglia, R. Hardt, B. Hel?'er,. M. Herv ..... D. Saint-James, G. Sarma and E. J. Thomas [1], D. Tilley and J. Tilley.

333

Sensors and Actuators B 107 (2005) 121125 Two photon fluorescence sensors based on resonant grating  

E-Print Network [OSTI]

Sensors and Actuators B 107 (2005) 121­125 Two photon fluorescence sensors based on resonant the excitation and emission radia- tion reduces the background noise, the static photobleaching.07.040 #12;122 T. Katchalski et al. / Sensors and Actuators B 107 (2005) 121­125 lar, they are compact

Friesem, Asher A.

334

Bragg grating-based fibre optic sensors in structural health monitoring  

Science Journals Connector (OSTI)

...fans on, full speed gas-turbine engine (ca 50 knots). The...engines at low speeds and a gas turbine engine at high speeds. As mentioned...used to make predictions about remaining useful structure life (in this case axial load on...

2007-01-01T23:59:59.000Z

335

NEW ATRACTUSFROM BRAZILNEW ATRACTUSFROM BRAZIL imens under their care. I am grateful to Jona-  

E-Print Network [OSTI]

):7-14. HOOGMOED,M. S. 1980. Revision of the genus Atrac- tusin Surinam,with the ressurectionof two spe- cies (Colubridae,Reptilia).Notes on the herpe- tofaunaof SurinamVII.Zool. Verhand.175:1-47. McCoY,C.J. 1971 of the genus Atrac- tusin Surinam,with the ressurectionof two spe- cies (Colubridae

Hedges, Blair

336

Local luminance nonlinearity and receptor aliasing in the detection of high-frequency gratings  

Science Journals Connector (OSTI)

Contrast sensitivity for orientation discrimination is limited to spatial frequencies below 5060 cycles per degree by neural spatial integration, and we find that contrast...

He, Sheng; MacLeod, Donald I A

1996-01-01T23:59:59.000Z

337

TPA-induced long-period gratings in a photonic crystal fiber: inscription and temperature  

E-Print Network [OSTI]

­3] or an electric arc discharge [4­9]) or by applying mechanical pressure [10,11]. One of the serious disadvantages

Nikogosyan, David N.

338

Polarisation properties of long-period grating inscribed in pure-fused-silica  

E-Print Network [OSTI]

arc discharge) or by applying mechanical pressure, and it allows the production of high quality LPFGs-photochemical ones, which deal with refractive index change induced by heating (using CO2 laser light or an electric

Nikogosyan, David N.

339

UNIVERSITY OF CALIFORNIA The Publishers and the Author will be grateful to  

E-Print Network [OSTI]

OF A HISTORY OF THE STEAM-EN- GINE, A MANUAL OF THE STEAM-ENGINE, A MANUAL OF STEAM-BOILERS, ETC., ETC., ETC & SO^S. 43 & 45 EAST NINETEENTH STREET. #12;#12;STEAM-BOILER EXPLOSIONS IN THEORY AND IN PRACTICE. BY R'lNSTRUCTION PUBLIQUE DE FRANCE; PAST PRESIDENT AM. SOC. MECH. ENG*RS J FORMERLY OF U. S. N. ENGINEERS ; AUTHOR

Laughlin, Robert B.

340

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network [OSTI]

the FBGs along Fiber-2 when moved from air to either IPA orB when the FBG is immersed in IPA from air and evolution ofetched FBG when immersed in IPA and then ferrofluid with a

Emmons, Michael

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Development of Fiber Bragg Grating Strain, Thermal, and Magnetic Sensors for Smart Structure Applications  

E-Print Network [OSTI]

temperature and vibration measurement using a multiplexedTemperature and vibration measurements were taken afteranalysis on vibration modal frequency measurement at a low

Emmons, Michael

2012-01-01T23:59:59.000Z

342

Application of fiber Bragg grating based strain sensor in pipeline vortex-induced vibration measurement  

Science Journals Connector (OSTI)

The vortex-induced vibrations (VIV) is an important topic of ... of different methods have been applied to the measurement of VIV, especially for the elongated, ... in stainless steel tubes were applied to the measurement

Liang Ren; ZiGuang Jia; Michael Siu Chun Ho

2014-09-01T23:59:59.000Z

343

Incorporation of nanovoids into metallic gratings for broadband plasmonic organic solar cells  

Science Journals Connector (OSTI)

We present investigation and optimization of a newly proposed plasmonic organic solar cell geometry based on the incorporation of nanovoids into conventional rectangular backplane...

Lee, Sangjun; In, SungJun; Mason, Daniel R; Park, Namkyoo

2013-01-01T23:59:59.000Z

344

Control of light transmission in laser-written phase-shifted Bragg grating couplers  

E-Print Network [OSTI]

, 2011; posted March 17, 2011 (Doc. ID 140861); published April 11, 2011 We demonstrate the fabrication

345

Direct Bragg grating writing in a hybrid PDMS/Silica photonic crystal fiber G. Kakarantzas1  

E-Print Network [OSTI]

FBG was written in the PDMS filled section of the PCF by using a doubled CW argon laser (=257 nm, P. Eggleton, P. S. Westbrook, C. A. White, C. Kerbage, R. S. Windeler, and G. L. Burdge, "Cladding

Vlachos, Kyriakos G.

346

Laser-induced grating measurements of energy migration in Tm,Ho:YAG  

Science Journals Connector (OSTI)

We report what is to our knowledge the first direct measurement of spatial energy migration among the Tm3+ ions in a Tm,Ho:YAG crystal at room temperature. Four-wave mixing...

French, Valentina A; Powell, Richard C

1991-01-01T23:59:59.000Z

347

Aminopropyltriethoxysilane (APTES)-functionalized nanoporous polymeric gratings: fabrication and application in biosensing  

E-Print Network [OSTI]

the molecular-recognition events into electrochemical,6 optical,7 acoustic,8 or calorimetric9 signals. Porous that provide a high signal-to-noise ratio. The direct addition of APTES into the photopolymer syrup effectively

348

Bragg grating-based fibre optic sensors in structural health monitoring  

Science Journals Connector (OSTI)

...which are powered by diesel engines at low speeds and a gas...possible detection of subtle engine characteristics: there...under three conditions: engines off, cruise in normal...state-space methods in general have been used in a number...

2007-01-01T23:59:59.000Z

349

Fundamental limit of light trapping in grating Zongfu Yu, Aaswath Raman and Shanhui Fan+  

E-Print Network [OSTI]

­305 (1982). 5. M. A. Green, "Lambertian light trapping in textured solar cells and light-emitting diodes. I. Tobías, A. Luque, and A. Marti, "Light intensity enhancement by diffracting structures in solar of nanophotonic light trapping for solar cells," arXiv:1004.2902v2 [physics.optics] (2010). http

Fan, Shanhui

350

Absorption Enhancement in Ultrathin Crystalline Silicon Solar Cells with Antireflection and Light-Trapping Nanocone Gratings  

E-Print Network [OSTI]

Absorption Enhancement in Ultrathin Crystalline Silicon Solar Cells with Antireflection and Light ABSTRACT: Enhancing the light absorption in ultrathin-film silicon solar cells is important for improving in the back reflector. KEYWORDS: Solar cells, light trapping, antireflection, crystalline silicon, absorption

Fan, Shanhui

351

Clinical boundary conditions for grating-based differential phase-contrast mammography  

Science Journals Connector (OSTI)

...owing to the collimation. A more detailed...disadvantages of the two system geometries is...two-dimensional systems. However,-the collimation of the radiation...all the other systems. This reflects...flux owing to collimation. When the use...

2014-01-01T23:59:59.000Z

352

Adaptive modelling of multi-phase flow Support of the German Research Foundation is gratefully acknowledged.  

E-Print Network [OSTI]

-method) Aavatsmark et. al (2008) Transport step Adaptation of sub-domains Next time-step Simple model (1p2c) Complex model (2p2c) Future Work Simulation of the Tensleep formation on an adaptive grid. Further application: 1p2c with linear T 2p2c with linear T Full 2p2cNI Only small parts of the domain are subject

Cirpka, Olaf Arie

353

STRUCTURAL HEALTH MONITORING OF SUPERCONDUCTING MAGNETS AT CERN USING FIBER BRAGG GRATING SENSORS  

E-Print Network [OSTI]

, at the European Organization for Nuclear Research (CERN), a multidisciplinary research program is currently of Engineering, University of Sannio, Corso Garibaldi, 82100 Benevento 2 European Organization for Nuclear

Boyer, Edmond

354

April 1, 2002 / Vol. 27, No. 7 / OPTICS LETTERS 479 Experimental investigation of intracavity Bragg gratings  

E-Print Network [OSTI]

. The intracavity holographic device was composed of an or- ganic dye, MOED,6,7 dissolved in ethanol n 1 was spatially modulated, inducing a periodic change in the refractive index (dn dT 23.6 3 1024 K21 in ethanol

Boyer, Edmond

355

To grate a liquid into tiny droplets by its impact on a hydrophobic micro-grid  

E-Print Network [OSTI]

We report on experiments of drop impacting a hydrophobic micro-grid, of typical spacing a few tens of $\\mu$m. Above a threshold in impact speed, liquid emerges to the other side, forming micro-droplets of size about that of the grid holes. We propose a method to produce either a mono-disperse spray or a single tiny droplet of volume as small as a few picoliters corresponding to a volume division of the liquid drop by a factor of up to 10$^5$. We also discuss the discrepancy of the measured thresholds with that predicted by a balance between inertia and capillarity.

Brunet, P; Zoueshtiagh, F; Thomy, V; Merlen, A

2009-01-01T23:59:59.000Z

356

Design of optimum slotted-grating systems for end filling navigation locks  

Science Journals Connector (OSTI)

1. The graphical and analytical relationships obtained and the methods for determining the optimum dimensions of...

P. R. Khlopenkov

1968-09-01T23:59:59.000Z

357

Nonlinear generalized source method for modeling second-harmonic generation in diffraction gratings  

E-Print Network [OSTI]

We introduce a versatile numerical method for modeling light diffraction in periodically patterned photonic structures containing quadratically nonlinear non-centrosymmetric optical materials. Our approach extends the generalized source method to nonlinear optical interactions by incorporating the contribution of nonlinear polarization sources to the diffracted field in the algorithm. We derive the mathematical formalism underlying the numerical method and introduce the Fourier-factorization suitable for nonlinear calculations. The numerical efficiency and runtime characteristics of the method are investigated in a set of benchmark calculations: the results corresponding to the fundamental frequency are compared to those obtained from a reference method and the beneficial effects of the modified Fourier-factorization rule on the accuracy of the nonlinear computations is demonstrated. In order to illustrate the capabilities of our method, we employ it to demonstrate strong enhancement of second-harmonic genera...

Weismann, Martin; Panoiu, Nicolae C

2015-01-01T23:59:59.000Z

358

High-Speed X-ray Phase Imaging with Grating Interferometer and White Synchrotron Light  

SciTech Connect (OSTI)

Taking advantage of the fact that an X-ray Talbot interferometer functions with X-rays of a broad energy band width, high-speed X-ray phase imaging and tomography have been achieved by using white synchrotron light. An X-ray phase tomogram could be measured with a 0.25 s exposure. Furthermore, a series of X-ray phase tomograms, in other words, a four-dimensional X-ray phase tomogram, could be reconstructed with a tomogram frame rate of 25.5 fps. This achievement advances X-ray phase imaging/tomography from a technique for static imaging to one for dynamic imaging of weakly absorbing objects.

Momose, Atsushi; Yashiro, Wataru; Huang, Shaohua; Kuwabara, Hiroaki; Kawabata, Katsuyuki [Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoka, Kashiwa, Chiba 277-8561 (Japan)

2010-06-23T23:59:59.000Z

359

Advanced Optical Technologies  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and gold-overcoated master diffraction gratings for pulse compression (up to 1 meter in diameter); ion-beam-etched transmission gratings; wet-etched gratings;...

360

Beamline 12.0.2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0.2 0.2 Beamline 12.0.2 Print Tuesday, 20 October 2009 09:30 Coherent science Scientific disciplines: Applied science, magnetism, materials science Endstations: 12.0.2.1: Coherent optics 12.0.2.2: Coherent x-ray scattering GENERAL BEAMLINE INFORMATION Operational Yes Proposal cycle Proposals for General Sciences Beamlines (6-month cycle) Source characteristics Third harmonic of 8-cm-period undulator (U8) Energy range 300-1500 eV Monochromator VLS-PGM, with two gratings (600 and 1200 lines/mm) Calculated flux (1.9 GeV, 400 mA) 1013 photons/s/0.1%BW at 500 eV Resolving power (E/DE) 1,000 Beam size Focused: 70 x 10 µm Unfocused: 200 x 200 µm Endstations 12.0.2.1: Coherent optics 12.0.2.2: Coherent scattering Detectors DetectorsCCD, photodiode, scintillator Scientific applications Branchlines designed for spatially coherent soft x-ray experiments

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

A Beamline for Fast Polarization Switching at NSLS-II  

SciTech Connect (OSTI)

The first XUV beamline (200-2000 eV) at NSLS-II will have two branches, one optimized for photon hungry experiments requiring high coherent flux and one optimized for studies of polarization sensitive materials and interfaces based on fast polarization switching. We describe here the branch designed for fast polarization switching with frequencies up to 1 kHz, high photon flux, and good energy resolution. The beamline will be served by two canted undulators and is based on the focusing variable line spacing grating monochromator. The two beams will be focused at the same spot of approximately 80x10 {mu}m (hor.xver.). The expected circular polarized flux at the sample from each device up to 1.4 keV will be higher than 10{sup 12} photons/s at a resolving power better than 10{sup 4}. An additional KB focusing system will deliver the two beams to a spot in the {mu}m range.

Reininger, R.; Sanchez-Hanke, C.; Hulbert, S. L. [NSLS and NSLS-II, Brookhaven National Laboratory, Upton, New York 11973 (United States)

2010-06-23T23:59:59.000Z

362

Development of a high-resolution soft x-ray (30--1500 eV) beamline at the Advanced Light Source and its use for the study of angle-resolved photoemission extended fine structure  

SciTech Connect (OSTI)

ALS Bending magnet beamline 9.3.2 is for high resolution spectroscopy, with circularly polarized light. Fixed included-angle SGM uses three gratings for 30--1500 eV photons; circular polarization is produced by an aperture for selecting the beam above or below the horizontal plane. Photocurrent from upper and lower jaws of entrance slit sets a piezoelectric drive feedback loop on the vertically deflecting mirror for stable beam. End station has a movable platform. With photomeission data from Stanford, structure of c(2{times}2)P/Fe(100) was determined using angle-resolved photoemission extended fine structure (ARPEFS). Multiple-scattering spherical-wave (MSSW) calculations indicate that P atoms adsorb in fourfold hollow sites 1.02A above the first Fe layer. Self-consistent-field X{alpha} scattered wave calculation confirm that the Fe{sub 1}-Fe{sub 2} space is contracted for S/Fe but not for P/Fe; comparison is made to atomic N and O on Fe(100). Final-state effects on ARPEFS curves used literature data from the S 1s and 2p core levels of c(2{times}2)S/Ni(001); a generalized Ramsauer-Townsend splitting is present in the 1s but not 2p data. An approximate method for analyzing ARPEFS data from a non-s initial state using only the higher-{ell} partial wave was tested successfully. ARPEFS data from clean surfaces were collected normal to Ni(111) (3p core levels) and 5{degree} off-normal from Cu(111)(3s, 3p). Fourier transforms (FT) resemble adsorbate systems, showing backscattering signals from atoms up to 4 layers below emitters. 3p FTs show scattering from 6 nearest neighbors in the same crystal layer as the emitters. MSSW calulation indicate that Cu 3p photoemission is mostly d-wave. FTs also indicate double-scattering and single-scattering from laterally distant atoms; calculations indicate that the signal is dominated by photoemission from the first 2 crystal layers.

Huff, W.R.A. [California Univ., Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley National Lab., CA (United States)

1996-02-01T23:59:59.000Z

363

Determination of Thermal Diffusivities, Thermal Conductivities, and Sound Speeds of Room-Temperature Ionic Liquids by the Transient Grating Technique  

E-Print Network [OSTI]

properties, which make them suitable not only as green solvents but also as high-performance fluids for use as a "green" recyclable alternative to the volatile organic compounds that are traditionally used as industrial solvents. In the laboratory, RTILs have successfully been used in a broad spectrum of applications

Reid, Scott A.

364

A Coal Mine Security Monitoring System Based on Multiplexed Fibre Bragg Grating Sensors and Coherence-Multiplexing Technique  

Science Journals Connector (OSTI)

Abstract: An FBG sensing system for coal mine security monitoring is proposed in this paper. It works over a Spatial-division-multiplexing/coherence-multiplexing network to realize...

Xia, Tianhao; Zhou, Bin; Liu, Weisheng; Guan, Zuguang

365

Viscosity Dependence of the Rotational Reorientation of Rhodamine B in Mono-and Polyalcohols. Picosecond Transient Grating Experiments  

E-Print Network [OSTI]

Viscosity Dependence of the Rotational Reorientation of Rhodamine B in Mono- and Polyalcohols-Stokes-Einstein (DSE) theorywas shown to extend to much higher viscosities than previously reported. Detailed of radius R and hydrodynamic volume V rotating in a fluid continuum of macroscopic viscosity q and relates

Fayer, Michael D.

366

Correlation of ultraviolet-induced stress changes and negative index growth in type IIa germanosilicate waveguide gratings  

Science Journals Connector (OSTI)

The stress anisotropy in planar germanosilicate waveguides is used to follow the changes in stress, measured as a birefringence, with UV irradiation. Compressive stress increases...

Canning, J; slund, M

1999-01-01T23:59:59.000Z

367

Photonic crystal fiber interferometer composed of a long period fiber grating and one point collapsing of air holes  

Science Journals Connector (OSTI)

We present an all-fiber interferometer fabricated with a single piece of an endless single-mode photonic crystal fiber (PCF) by an electric arc discharge. By forming a long period...

Choi, Hae Young; Park, Kwan Seob; Lee, Byeong Ha

2008-01-01T23:59:59.000Z

368

Interaction of leech neurons with topographical gratings: comparison with rodent and human neuronal lines and primary cells  

Science Journals Connector (OSTI)

...Tukey's multiple comparison test or Kruskal-Wallis test (for non-parametric data...versus T2; one-way ANOVA, Kruskal-Wallis test; figure 3 c). In order...T2 and T4; one-way ANOVA, Kruskal-Wallis test; figure 4 e), suggesting...

2014-01-01T23:59:59.000Z

369

Enhancement of optical absorption in thin-film organic solar cells through the excitation of plasmonic modes in metallic gratings  

E-Print Network [OSTI]

Enhancement of optical absorption in thin-film organic solar cells through the excitation 2010 We theoretically investigate the enhancement of optical absorption in thin-film organic solar.1063/1.3377791 Thin-film organic solar cells OSCs are a promising candidate for low-cost energy conversion.1­6 However

Veronis, Georgios

370

InP-and Graphene-based grating-gated transistors for tunable THz and mm-wave detection  

E-Print Network [OSTI]

layer. Silvaco Atlas 2-D device simulator (FEM analysis software) was used to determine the free carrier

Peale, Robert E.

371

Long-period fiber grating inscription under high-intensity 352 nm femtosecond irradiation: Three-photon absorption  

E-Print Network [OSTI]

-photon absorption and energy deposition in cladding Stephen A. Slattery, David N. Nikogosyan * Department of Physics-intensity 211 and 264 nm laser pulses. Three-photon absorption coefficients for pure fused silica in the fiber cladding and the core. It was shown that the deposition of the majority of the absorbed energy

Nikogosyan, David N.

372

High-resolution tomographic imaging of a human cerebellum: comparison of absorption and grating-based phase contrast  

Science Journals Connector (OSTI)

...Technische Universitat Munchen, , Garching, Germany 4 Institute for Materials Research, , GKSS Research Centre, , Geesthacht, Germany 5 Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, , Villigen, Switzerland 6 Institute of Microstructure...

2010-01-01T23:59:59.000Z

373

Use of Fiber Bragg Grating Strain Gages on a Pipeline Specimen Repaired with a CFRE Composite System  

Science Journals Connector (OSTI)

Re-establishing the maximum operating pressure of a segment of pipeline with metal loss defects, such as erosion ... segment altogether, or by applying a localized repair system. The present paper deals with labo...

J. L. F. Freire; V. A. Perrut

2013-01-01T23:59:59.000Z

374

December 1, 2000 / Vol. 25, No. 23 / OPTICS LETTERS 1693 High-frequency Bragg gratings in a photothermorefractive glass  

E-Print Network [OSTI]

in a photothermorefractive glass O. M. Efimov, L. B. Glebov, and V. I. Smirnov School of Optics/Center for Research-2700 Received July 21, 2000 Holographic UV mirrors were recorded in a volume of photothermorefractive glass. This photosensitive sili- cate glass doped with silver, cerium, and fluorine is transparent in the near-UV, visible

Glebov, Leon

375

Design of all-optical high-order temporal integrators based on multiple-phase-shifted Bragg gratings  

Science Journals Connector (OSTI)

In exact analogy with their electronic counterparts, photonic temporal integrators are fundamental building blocks for constructing all-optical circuits for ultrafast information...

Asghari, Mohammad H; Azaa, Jos

2008-01-01T23:59:59.000Z

376

Systematic intensity errors caused by spectral truncation: origin and remedy  

Science Journals Connector (OSTI)

X-ray absorption by the monochromator determines the wavelength dispersion in the monochromated X-ray beam and explains the values of 0.03, 0.14 and 0.16 for graphite(002)-monochromated Cu, Mo and Rh radiation. To eliminate the systematic intensity truncation errors, caused by the large wavelength dispersion, a correction is proposed based on the applied scan angle and the real beam spectrum.

Lenstra, A.T.H.

2001-10-26T23:59:59.000Z

377

1 Copyright 1999 by ASME Proceedings of the  

E-Print Network [OSTI]

SGM, which thereafter employs element-level static condensation for efficiency and nodal, monotone and efficient (SAME) discrete approximate solution is of tremendous interest for convection-rank homogeneity. It is based on a genuinely non-linear, non- hierarchical, high-degree finite element basis

Roy, Subrata

378

STR Loci and Multiplex Kits  

E-Print Network [OSTI]

(1997) · COfiler (1998) · SGM Plus (1999) · Identifiler (2001) · Profiler Plus ID (2001) · SEfiler (2002 16 (2009) · PowerPlex ESX 17 (2009) · PowerPlex ESI 16 (2009) · PowerPlex ESI 17 (2009) · Power

Perkins, Richard A.

379

The onset of optical breakdown in KrF-laser-irradiated silica glass surfaces  

E-Print Network [OSTI]

A synthetic fused silica obtained from Tosoh SGM Co., ESL-1000 (OH % 1200 wt. ppm), with a thick- ness of 2 mmThe onset of optical breakdown in KrF-laser-irradiated silica glass surfaces Y. Kawaguchia,* , A Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba Central 5, 1

Dickinson, J. Thomas

380

E-Print Network 3.0 - approaches neoadjuvant chemotherapy Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of optical spectroscopy in early monitoring of neo-adjuvant... chemotherapy Xenon Arc Lamp + Monochromator Collection Fibers In vivo Breast Tissue Illumination Fibers Imaging...

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Microsoft PowerPoint - IXD-NSLSII_Poster_Bai  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

crystal sagittal focusing monochromator (Bottom) IXD beamline layout Catalysis: Water gas shift reaction Real-Time Catalysis: In-Situ Structural Studies for Producing and...

382

Electrocatalysis in Alkaline Electrolytes - Research Overview  

Broader source: Energy.gov (indexed) [DOE]

Binding Site EXAFS (> 50 eV) * Geometric information * Bond length * Coordination number *BULK short range order Synchrotron Monochromator I o Spectro-electrochemical Cell...

383

Microsoft PowerPoint - FXI_NSLSII_Poster  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of the FXI beamline. Storage Ring Shield Wall Damping Wiggler Collimating Mirror Toroidal Mirror Monochromator Condenser Sample Objective Detector Secondary Source Aperture Slit...

384

Low-Divergence Surface-Emitting Terahertz Quantum Cascade Lasers  

Science Journals Connector (OSTI)

We investigate surface-emission via a second-order grating in terahertz quantum cascade lasers. We optimize grating design and suppress facet reflectivity with absorbing waveguide...

Fan, Jonathan; Belkin, Mikhail; Capasso, Federico; Khanna, Suraj; Lachab, Mohammed; Davies, Giles; Linfield, Edmund

385

Document  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

July 2, 2008 Part V The President Executive Order 13467-Reforming Processes Related to Suitability for Government Employment, Fitness for Contractor Employees, and Eligibility for Access to Classified National Security Information VerDate Aug2005 18:32 Jul 01, 2008 Jkt 214001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\02JYE0.SGM 02JYE0 hsrobinson on PROD1PC76 with PROPOSALS2 VerDate Aug2005 18:32 Jul 01, 2008 Jkt 214001 PO 00000 Frm 00002 Fmt 4717 Sfmt 4717 E:\FR\FM\02JYE0.SGM 02JYE0 hsrobinson on PROD1PC76 with PROPOSALS2 Presidential Documents 38103 Federal Register Vol. 73, No. 128 Wednesday, July 2, 2008 Title 3- The President Executive Order 13467 of June 30, 2008 Reforming Processes Related to Suitability for Government Employment, Fitness for Contractor Employees, and Eligi-

386

Residential Clothes Washers Test Procedure Notice of Proposed Rulemaking  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

19:12 Sep 20, 2010 19:12 Sep 20, 2010 Jkt 220001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\21SEP2.SGM 21SEP2 srobinson on DSKHWCL6B1PROD with PROPOSALS2 Tuesday, September 21, 2010 Part II Department of Energy 10 CFR Part 430 Energy Conservation Program for Consumer Products: Test Procedure for Residential Clothes Washers; Proposed Rule VerDate Mar2010 19:12 Sep 20, 2010 Jkt 220001 PO 00000 Frm 00002 Fmt 4701 Sfmt 4702 E:\FR\FM\21SEP2.SGM 21SEP2 srobinson on DSKHWCL6B1PROD with PROPOSALS2 57556 Federal Register / Vol. 75, No. 182 / Tuesday, September 21, 2010 / Proposed Rules DEPARTMENT OF ENERGY 10 CFR Part 430 [Docket No. EERE-2010-BT-TP-0021] RIN 1904-AC08 Energy Conservation Program for Consumer Products: Test Procedure for Residential Clothes Washers AGENCY: Office of Energy Efficiency and

387

17 July 2014 Peter M. Vallone, Ph.D.  

E-Print Network [OSTI]

SElect PowerPlex ESI 17 COfiler PowerPlex ES Profiler PowerPlex S5 Profiler Plus PowerPlex Y Profiler Plus ID FFFL SGM Plus SEfiler MiniFiler Yfiler STR Typing kits and Primer Mixes 100% Concordance ESSplex SE RM Y STRs NGM SElect PowerPlex ESI 17 ESSplex SE Plus COfiler PowerPlex ES ESSplex SE GO

388

Executive Order 13514: Federal Leadership in Environmental, Energy, and Economic Performance  

Broader source: Energy.gov (indexed) [DOE]

9:24 Oct 07, 2009 9:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS Thursday, October 8, 2009 Part VII The President Executive Order 13514-Federal Leadership in Environmental, Energy, and Economic Performance VerDate Nov2008 19:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00002 Fmt 4717 Sfmt 4717 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS VerDate Nov2008 19:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00003 Fmt 4705 Sfmt 4790 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS 52117 Federal Register Presidential Documents Vol. 74, No. 194 Thursday, October 8, 2009 Title3- The President Executive Order 13514 of October 5, 2009 Federal Leadership in Environmental, Energy, and Economic

389

Executive Order 13514: Federal Leadership in Environmental, Energy, and Economic Performance  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

9:24 Oct 07, 2009 9:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS Thursday, October 8, 2009 Part VII The President Executive Order 13514-Federal Leadership in Environmental, Energy, and Economic Performance VerDate Nov2008 19:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00002 Fmt 4717 Sfmt 4717 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS VerDate Nov2008 19:24 Oct 07, 2009 Jkt 220001 PO 00000 Frm 00003 Fmt 4705 Sfmt 4790 E:\FR\FM\08OCE0.SGM 08OCE0 srobinson on DSKHWCL6B1PROD with MISCELLANEOUS 52117 Federal Register Presidential Documents Vol. 74, No. 194 Thursday, October 8, 2009 Title3- The President Executive Order 13514 of October 5, 2009 Federal Leadership in Environmental, Energy, and Economic

390

High-resolution grazing-incidence grating spectrometer for temperature measurements of low-Z ions emitting in the 100300 spectral band  

SciTech Connect (OSTI)

We have constructed a high-resolution grazing-incidence spectrometer designed for measuring the ion temperature of low-Z elements, such as Li{sup +} or Li{sup 2+}, which radiate near 199 and 135 , respectively. Based on measurements at the Livermore Electron Beam Ion Trap we have shown that the instrumental resolution is better than 48 m at the 200 setting and better than 40 m for the 135- range. Such a high spectral resolution corresponds to an instrumental limit for line-width based temperature measurements of about 45 eV for the 199 Li{sup +} and 65 eV for the 135 Li{sup 2+} lines. Recently obtained survey spectra from the Lithium Tokamak Experiment at the Princeton Plasma Physics Laboratory show the presence of these lithium emission lines and the expected core ion temperature of approximately 70 eV is sufficiently high to demonstrate the feasibility of utilizing our high-resolution spectrometer as an ion-temperature diagnostic.

Widmann, K., E-mail: widmann1@llnl.gov; Beiersdorfer, P.; Magee, E. W. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Boyle, D. P.; Kaita, R.; Majeski, R. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2014-11-15T23:59:59.000Z

391

Gasification of Mixed Plastic Wastes in a Moving-Grate Gasifier and Application of the Producer Gas to a Power Generation Engine  

Science Journals Connector (OSTI)

Due to the flame-assisted tar reforming with oxy-combustion of natural gas, the hydrogen content was significantly increased, resulting in an increase in the syngas caloric value and a decrease in the gas cleaning load downstream. ... An auxiliary burner was installed in front of each stage for preheating the inside of the gasifier. ... Such waste products include discarded tires, plastic, glass, steel, burnt foundry sand, and coal combustion byproducts (CCBs). ...

Jeung Woo Lee; Tae U Yu; Jae Wook Lee; Ji Hong Moon; Hyo Jae Jeong; Sang Shin Park; Won Yang; Uen Do Lee

2013-03-15T23:59:59.000Z

392

Proximity field nanopatterning (PnP) employs a 2D grating to create a 3D optical interferogram within an underlying photore-  

E-Print Network [OSTI]

bandgaps, metamaterials, optical cloaking, highly efficient solar cells, and unique sensors. Significant of optical absorption processes in solar cells, and sensors.[1] Since the pioneering work of Yablonovitch[3 cloaking, solar energy harvesting, and sensing. Central image design by Huigang Zhang. #12;Multidimensional

Rogers, John A.

393

Energy-transfer measurement and determination of the phase shift between the holographic grating and the fringe pattern in photorefractive materials  

Science Journals Connector (OSTI)

We describe a novel accurate method to measure energy transfer between two beams coupling in photorefractive materials. We have used this method to measure the on-line energy-transfer...

Kapoor, Rakesh; Moghbel, Mehdi; Venkateswarlu, Putcha

1993-01-01T23:59:59.000Z

394

Chemical State and Local Structure around Titanium Atoms in NaAlH4 Doped with TiCl3 Using X-ray Absorption Spectroscopy  

Science Journals Connector (OSTI)

Financial support by the Forschungsallianz Brennstoffzelle Baden-Wrttemberg is gratefully acknowledged. ...

Aline Lon; Oliver Kircher; Jrg Rothe; Maximilian Fichtner

2004-09-29T23:59:59.000Z

395

Influence of Kaolin and Calcite Additives on Ash Transformations in Small-Scale Combustion of Oat  

Science Journals Connector (OSTI)

The financial support from the Swedish Farmers Foundation for Agricultural Research (SLF) is gratefully acknowledged. ...

Dan Bostrm; Alejandro Grimm; Christoffer Boman; Emilia Bjrnbom; Marcus hman

2009-09-16T23:59:59.000Z

396

Subsidizing Solar: The Case for an Environmental Goods and Services Carve-out from the Global Subsidies Regime  

E-Print Network [OSTI]

solar collectors and system controllers, wind- turbine parts and components, stoves, grates and cookers,

Simmons, Zachary Scott

2014-01-01T23:59:59.000Z

397

Characterization of Mn-doped ZnO nanobelts by electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

......energy resolution of EELS spectra: an alternative to the monochromator solution. Ultramicroscopy (2003) 96:385-400. 20 Overwijk M , Reefman D. Maximum-entropy deconvolution applied to electron energy-loss spectroscopy. Micron (2000) 31:325-331......

Jingmin Zhang; Chao Yu; Zhimin Liao; Xinzheng Zhang; Liping You; Dapeng Yu

2009-10-01T23:59:59.000Z

398

CAP 4401 / COT 5930 Digital Image Processing Spring 2013 Instructor: Dr. Oge Marques Dept: CEECS  

E-Print Network [OSTI]

processing software tools for lab assignments and projects. Prerequisites: COP 3530 and enhancement algorithms for monochrome as well as color images using MATLAB MATLAB" by Oge Marques Wiley/IEEE Press, 2011 ISBN-10: 0470048158 | ISBN

Marques, Oge

399

Microsoft PowerPoint - 1L35-brochure.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

* fitted with solar spectrum simulator and optical monochromator LakeShore HFTTP4 cryogenic probe station: * low-noise measurements from 4 K up to 400 K * in-plane field from 1...

400

New Mineral Names  

Science Journals Connector (OSTI)

...05 mm) with MoKa radiation, using a diffractometer...graphite-monochromated CuKa radiation) were obtained from...Gandolfi camera (CuKa radiation). Single-crystal...well to those of the naturally occuring material. Based on...

Paula C. Piilonen; Glenn Poirier; Kim T. Tait

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

2/21/11 11:08 AMOregon Quarterly Features Page 1 of 4http://www.oregonquarterly.com/winter2010/feature4.php  

E-Print Network [OSTI]

/feature4.php UO Home | Dept index Winter 2010 | Volume 90, Number 2 Donate to OQ | Past Issues:08 AMOregon Quarterly Features Page 2 of 4http://www.oregonquarterly.com/winter2010/feature4.php monochrome

Richmond, Geraldine L.

402

STUDIES OF ELECTRON CORRELATION IN THE PHOTOIONIZATION PROCESS  

E-Print Network [OSTI]

from the ultra-high vacuum (UHV ~10- torr) of the beam line,LiF window to separate the UHV and experi- mental chamber.Seya-Namioka monochromator (UHV Design, GCA/McPherson). The

Roseberg, Richard Allen

2011-01-01T23:59:59.000Z

403

Endodermal ABA Signaling Promotes Lateral Root Quiescence during Salt Stress in Arabidopsis Seedlings  

Science Journals Connector (OSTI)

...stage and MFC-2000 controller (Applied Scientific Instrumentation), samples were backlit using an infrared light-emitting diode panel, and images were captured using a digital monochrome camera (CoolSnap) fitted with an NF Micro-Nikor...

Lina Duan; Daniela Dietrich; Chong Han Ng; Penny Mei Yeen Chan; Rishikesh Bhalerao; Malcolm J. Bennett; José R. Dinneny

2013-01-22T23:59:59.000Z

404

Consequences of the Kramers-Kronig  

Science Journals Connector (OSTI)

Diffraction of monochromatic light on a grating leads to the attenuation of the transmitted beam of diffraction order zero. In the case of a thick grating the diffraction efficiency,...

Hckel, Michael; Kador, Lothar; Frenz, Carsten; Schmidt, Hans-Werner

2004-01-01T23:59:59.000Z

405

The impact of astronomy  

Science Journals Connector (OSTI)

......Einstein's work. Spectroscopy and nuclear fusion were also largely stimulated by astronomical...grating. Their products are used in laser fusion, for example, and there...this 91 - 42 cm grating made for laser pulse compression at Osaka University......

Andy Fabian

2010-06-01T23:59:59.000Z

406

REMEMBERING KI HANG KIM This volume is dedicated in memory to Ki Hang Kim, who died in 2009 after  

E-Print Network [OSTI]

, a passport was secured. In December 1953, Kim sailed under the Golden Gate Bridge. Kim was always grateful

Boyle, Mike

407

Structure-Dependent Photophysics of First-Generation Phenyl-Cored Thiophene Dendrimers  

Science Journals Connector (OSTI)

Support of this work by the NREL LDRD program and the Xcel Energy Renewable Development Fund is gratefully acknowledged. ...

William J. Mitchell; Andrew J. Ferguson; Muhammet E. Kse; Benjamin L. Rupert; David S. Ginley; Garry Rumbles; Sean E. Shaheen; Nikos Kopidakis

2008-12-24T23:59:59.000Z

408

Optics and Diagnostics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

10 14 | Next | Last Back to Index Optics Diffraction Gratings for APPOLON laser. Photo Number: 2011-020040...

409

Hydrogen Safety Issues Compared to Safety Issues with Methane and Propane  

E-Print Network [OSTI]

DOE funding for the US Neutrino Factory and Muon Collider Collaboration is also gratefully acknowledged. REFERENCES Handbook

Green, Michael A.

2005-01-01T23:59:59.000Z

410

December 1985 / Vol. 10, No. 12 / OPTICS LETTERS 609 Picosecond pulse shaping by spectral phase and amplitude  

E-Print Network [OSTI]

The temporal profile of ultrashort optical pulses may be tailored by physically manipulating the phase, with a repetition rate of 100 MHz, are coupled into a 400-m length of single- mode, polarization-preserving optical.9 psec by using a double-pass grating pair.3'4 After a single pass, through the grating pair (grating

Purdue University

411

2007 Nature Publishing Group Self-formation of sub-60-nm half-pitch  

E-Print Network [OSTI]

studies of thin polymer films and termed fracture induced structuring (FIS), self-generates gratings. Specifically, FIS consists of three steps (Fig. 1)12,13. First, a coating of a polymer thin film (for example and cross- sections of FIS gratings. The half-pitch of the FIS grating was found to be as small as 60 nm

412

BEAMLINE 7-3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 3 CURRENT STATUS: Open SUPPORTED TECHNIQUES: X-ray absorption spectroscopy MAIN SCIENTIFIC DISCIPLINES: Structural Biology % TIME GENERAL USE: 100% SCHEDULING: Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: 20-pole, 2-Tesla wiggler, 0.8 mrad beam, side station BEAM LINE SPECIFICATIONS: energy range resolution DE/E spot size (fwhm) flux* angular acceptance unfocused 4600-37000 eV 1 x 10-4 2 x 15 mm2 ~1 x 1012 0.8 mrad *ph/sec @100 mA / 9 keV w 2x15 mm aperture OPTICS: M0 mirror: Flat, bent, vertically collimating, 1 m, Si, Rh-coated, LN2-cooled monochromator MONOCHROMATOR: Si(220) phi=0°, Si(220) phi=90° double-crystal, non-fixed exit slit Monochromator Crystal Glitch Library Crystal changes need to be scheduled and coordinated in advance with BL

413

BEAMLINE 4-3  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4-3 4-3 CURRENT STATUS: Open SUPPORTED TECHNIQUES: X-ray Absorption Spectroscopy MAIN SCIENTIFIC DISCIPLINES: Environmental / Materials / Biology % TIME GENERAL USE: 100% SCHEDULING: Proposal Submittal and Scheduling Procedures Current SPEAR and Beam Line Schedules SOURCE: 20-pole, 2.0-Tesla wiggler, 0.75 mrad, side station BEAM LINE SPECIFICATIONS: energy range resolution DE/E spot size flux angular acceptance unfocused 2400-14000 eV 10-4 3 x 16 mm 0.75 mrad OPTICS: M0 mirror: Flat, bent vertically collimating, 1 m, Si, Rh-coated, cutoff 4-14 keV, LN2-cooled monochromator MONOCHROMATOR: Si(111) f=0° or Si(111) f=90° double-crystal, non-fixed exit slit Monochromator Crystal Glitch Library Crystal changes need to be scheduled and coordinated in advance with BL

414

Energy Conservation Program: Certification, Compliance, and Enforcement for Consumer Products and Commercial and Industrial Equipment, Published March 7, 2011.  

Broader source: Energy.gov (indexed) [DOE]

VerDate Mar2010 18:04 Mar 04, 2011 VerDate Mar<15>2010 18:04 Mar 04, 2011 Jkt 223001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\07MRR2.SGM 07MRR2 mstockstill on DSKH9S0YB1PROD with RULES2 Vol. 76 Monday, No. 44 March 7, 2011 Part II Department of Energy 10 CFR Parts 429, 430 and 431 Energy Conservation Program: Certification, Compliance, and Enforcement for Consumer Products and Commercial and Industrial Equipment; Final Rule VerDate Mar2010 18:04 Mar 04, 2011 Jkt 223001 PO 00000 Frm 00002 Fmt 4701 Sfmt 4700 E:\FR\FM\07MRR2.SGM 07MRR2 mstockstill on DSKH9S0YB1PROD with RULES2 12422 Federal Register / Vol. 76, No. 44 / Monday, March 7, 2011 / Rules and Regulations DEPARTMENT OF ENERGY 10 CFR Parts 429, 430 and 431 [Docket No. EERE-2010-BT-CE-0014] RIN 1904-AC23 Energy Conservation Program:

415

Executive Order 13221-Energy Efficient Standby Power Devices  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

August 2, 2001 August 2, 2001 Part V The President Executive Order 13221-Energy Efficient Standby Power Devices VerDate 112000 14:57 Aug 01, 2001 Jkt 194001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\02AUE0.SGM pfrm04 PsN: 02AUE0 VerDate 112000 14:57 Aug 01, 2001 Jkt 194001 PO 00000 Frm 00002 Fmt 4717 Sfmt 4717 E:\FR\FM\02AUE0.SGM pfrm04 PsN: 02AUE0 Presidential Documents 40571 Federal Register Vol. 66, No. 149 Thursday, August 2, 2001 Title 3- The President Executive Order 13221 of July 31, 2001 Energy Efficient Standby Power Devices By the authority vested in me as President by the Constitution and the laws of the United States of America, including the National Energy Conserva- tion Policy Act (Public Law 95-619, 92 Stat. 3206, 42 U.S.C. 8252 et seq.), as amended by the Energy Policy Act of 1992 (EPACT) (Public Law 102-

416

Data:6cc0419e-de29-4592-a7aa-8d4558df829c | Open Energy Information  

Open Energy Info (EERE)

419e-de29-4592-a7aa-8d4558df829c 419e-de29-4592-a7aa-8d4558df829c No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Town of Concord, Massachusetts (Utility Company) Effective date: 2013/01/01 End date if known: Rate name: RATE R-1 SGM THREE PHASE (SMART GRID METER) Sector: Residential Description: This rate schedule is applicable to all electric service required by the Customer exclusively for domestic purposes for individual (single family) private residences and individually metered apartment units. A Customer electing electrical service with a Smart Grid Meter (SGM), as opposed to a standard meter, other than service rendered under CMLP Electric Thermal Storage Rates or Controlled Domestic Water Heating Rates, will incur an additional charge under the Meter Charge to cover the additional cost of the Smart Grid Meter.

417

Diffraction encoded position measuring apparatus  

DOE Patents [OSTI]

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection.

Tansey, Richard J. (Thousand Oaks, CA)

1991-01-01T23:59:59.000Z

418

Diffraction encoded position measuring apparatus  

DOE Patents [OSTI]

When a lightwave passes through a transmission grating, diffracted beams appear at the output or opposite side of the grating that are effectively Doppler shifted in frequency (phase) whereby a detector system can compare the phase of the zero order and higher order beams to obtain an indication of position. Multiple passes through the grating increase resolution for a given wavelength of a laser signal. The resolution can be improved further by using a smaller wavelength laser to generate the grating itself. Since the grating must only have a pitch sufficient to produce diffracted orders, inexpensive, ultraviolet wavelength lasers can be utilized and still obtain high resolution detection. 3 figures.

Tansey, R.J.

1991-09-24T23:59:59.000Z

419

For more information, contact  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tao Hong, hongt@ornl.gov, 865.574.8659 Tao Hong, hongt@ornl.gov, 865.574.8659 Adam Aczel, aczelaa@ornl.gov, 865.978.0118 neutrons.ornl.gov/cg4c The US/Japan Cold Neutron Triple-Axis Spectrometer is a conventional triple-axis spectrometer with variable incident energy and variable monochromator-sample and sample-analyzer distances. The cold guide 4 bender and guide hall shielding reduce 4C's vertically focusing monochromator PG (002). To enhance accommodation of strong magnetic position and to simplify future polarization analysis, the amount of ferromagnetic material has been minimized in

420

High-throughput Accurate-wavelength Lens-based Visible Spectrometera  

SciTech Connect (OSTI)

A scanning visible spectrometer has been prototyped to complement fixed-wavelength transmission grating spectrometers for charge exchange recombination spectroscopy. Fast f/1.8 200 mm commercial lenses are used with a large 2160 mm-1 grating for high throughput. A stepping-motor controlled sine drive positions the grating, which is mounted on a precision rotary table. A high-resolution optical encoder on the grating stage allows the grating angle to be measured with an absolute accuracy of 0.075 arcsec, corresponding to a wavelength error ? 0.005 . At this precision, changes in grating groove density due to thermal expansion and variations in the refractive index of air are important. An automated calibration procedure determines all relevant spectrometer parameters to high accuracy. Changes in bulk grating temperature, atmospheric temperature and pressure are monitored between the time of calibration and the time of measurement to insure a persistent wavelength calibration

Ronald E. Belll and Filippo Scotti

2010-06-04T23:59:59.000Z

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Influence of the Morphology and Porosity of n-Hexane Films on the Electron-Stimulated Luminescence and Desorption of Metastable Argon from Adsorbed Argon  

Science Journals Connector (OSTI)

Groupe du Conseil de Recherches Mdicales en Sciences des Radiations, Facult de Mdecine, Universit de Sherbrooke, Sherbrooke, Qubec, Canada J1H 5N4 ... The instrument consists of an electrostatic electron monochromator, a cryogenically cooled Pt(111) substrate, hemispherical LEED grids, and a position sensitive detector. ...

E. Vichnevetski; L. Sanche

1999-08-31T23:59:59.000Z

422

Spectral restoration and energy resolution improvement of electron energy-loss spectra by Pixon reconstruction: I. Principle and test examples  

Science Journals Connector (OSTI)

......spectrometer and energy filter for use in combination with 200 kV monochromated (S)TEMs. Ultramicroscopy 96: 367-384. 2 Overwijk M H F and Reefman D. (2000) Maximum-entropy deconvolution applied to electron energy-loss spectroscopy. Micron 31......

Shunsuke Muto; Richard C. Puetter; Kazuyoshi Tatsumi

2006-08-01T23:59:59.000Z

423

Towards 0.1 nm resolution with the first spherically corrected transmission electron microscope  

Science Journals Connector (OSTI)

......defocus-modulation image processing. Ultramiaysco/y'41: 323-333. means of an appropriate monochromator. 24 Thust A, Overwijk M H, Coene W M J, and Lentzen M (1996) M. Haider et al. Corrected electron microscope 405 Numerical correction of lenaberrations......

Maximilian Haider; Herald Rose; Stephan Uhlemann; Bernd Kabius; Knut Urban

1998-01-01T23:59:59.000Z

424

UHV piezoelectric translator  

SciTech Connect (OSTI)

A UHV compatible piezoelectric translator has been developed to correct for angular misalignments in the crysals of a UHV x-ray monochromator. The unit is small, bakeable to 150/sup 0/C, and uses only ceramic materials for insulation. We report on the construction details, vacuum compatibility, mechanical properties, and uses of the device.

Oversluizen, T.; Watson, G.

1985-01-01T23:59:59.000Z

425

A novel X-ray diffractometer for studies of liquid-liquid interfaces  

Science Journals Connector (OSTI)

A dedicated liquid surface diffractometer employing a tilting double-crystal monochromator in Bragg geometry has been designed. This diffractometer allows reflectivity and grazing-incidence scattering measurements of an immobile mechanical completely decoupled liquid sample from 6.4 to 29.4 keV.

Murphy, B.M.

2013-11-29T23:59:59.000Z

426

Correction of Emission Crosstalk for FRET sensors By Teng-Leong Chew and Rex L. Chisholm  

E-Print Network [OSTI]

1 Correction of Emission Crosstalk for FRET sensors By Teng-Leong Chew and Rex L. Chisholm Excerpt. The superscript "y" can be replaced by "b" to indicate that the monochrome image has been background subtracted. For example: b dF represents a background-subtracted image of the donor fluorophore taken using the FRET

Goldman, Robert D.

427

Streaming speech3: a framework for generating and streaming 3D text-to-speech and audio presentations to wireless PDAs as specified using extensions to SMIL  

Science Journals Connector (OSTI)

While monochrome unformatted text and richly colored graphical content are both capable of conveying a message, well designed graphical content has the potential for better engaging the human sensory system. It is our contention that the author of an ... Keywords: 3D audio, PDA, SMIL, accessibility, location-based, mobile, spatialization, speech synthesis, streaming, wireless

Stuart Goose; Sreedhar Kodlahalli; William Pechter; Rune Hjelsvold

2002-05-01T23:59:59.000Z

428

Auger resonance study for the C1s 2pi* excitation of CO  

E-Print Network [OSTI]

monochromator resolution it is now possible to study the Auger spectra of diatomic molecules such as carbon monoxide (CO) in great detail. Our current study of CO, focuses on the computation of photoionization cross sections for the auger decay of CO after...

Botting, Shaleen Kaye

1997-01-01T23:59:59.000Z

429

Artificial Microfossils: Experimental Studies of Permineralization of Blue-Green Algae in Silica  

Science Journals Connector (OSTI)

...microorganisms are comparable to naturally occurring fossil algae...processes, comparable to naturally occuring fossil algae, information...are cotinparable to naturally occurring fossil algae...bars for 2 weeks; CuKa radiation with a LiF mono-chromator...

John H. Oehler; J. William Schopf

1971-12-17T23:59:59.000Z

430

Beam line instrumentation proposed by an ORAU/ORNL consortium for the VUV ring at NSLS  

Science Journals Connector (OSTI)

The beam line configuration and monochromators proposed jointly by a consortium of universities organized through Oak Ridge Associated Universities and by workers at Oak Ridge National Labs for installation at the National Synchrotron Light Source (NSLS) at Brookhaven are described. The proposed system is an adaptation of designs developed at Brookhaven for the VUV storage ring of NSLS.

T.A. Callcott; P.A. Carlson

1980-01-01T23:59:59.000Z

431

Mitochondrial Matrix Ca2+ Accumulation Regulates Cytosolic NAD+/NADH Metabolism, Protein Acetylation, and Sirtuin Expression  

Science Journals Connector (OSTI)

...12). Repetitive Ca2+ oscillations are commonly observed in...Spectral analysis of Ca2+ oscillations was measured as described...microscope equipped with a xenon arc lamp and DeltaRamX monochromator...Receptor-mediated Ca2+ oscillations stimulate mitochondrial Ca2...

Raluca Marcu; Brian M. Wiczer; Christopher K. Neeley; Brian J. Hawkins

2014-05-27T23:59:59.000Z

432

A Quantitative Analysis of Disk Drive Power Management in Portable Computers  

E-Print Network [OSTI]

the question of power management begins with an analysis of where the energy is being consumed. Table 1 gives) Percent of Total Display Compaq monochrome lite25c 3.5 68% Disk Drive (105 Mbytes) Maxtor MXL­105 III 1 of inactivity. In this paper, we perform a quantitative analysis of the potential costs and benefits of spinning

Anderson, Tom

433

Supporting Information for: Hyperspectral imaging of structure and composition in atomically thin heterostructures  

E-Print Network [OSTI]

The central mirror of a Schwarzschild objective obscures the central portion of the collected light cone (see. Light exiting the monochromator is focused with parabolic mirrors into a solarization a reflective (Schwarzschild) objective with an N.A. of 0.65, an effective magnification of ~100?, and spatial

McEuen, Paul L.

434

Number: Revision: A LS-OPS-0065  

E-Print Network [OSTI]

in the upstream and downstream sections when bleeding up the monochromator. II Section between UHV Vat Valve1 and Beryllium Window A. Bleed up 1. Notify the Coordinator ( Beeper 5824) 2. Close and seal NSLS UHV front end valve 3. Close and seal UHV Vat Valve 1 4. Coordinator places Yellow tag on UHV Vat valve 1 5. Hook up

Ohta, Shigemi

435

holger.lange@physik.tu-berlin.de Oviedo/Spain -September, 2008  

E-Print Network [OSTI]

micrographs were taken by a Philips CM200-FEG- UT operated at 200 kV. Low-frequency vibrational mode clearly at liquid helium temperatures with the 514 nm line of an Ar+ laser and a Dilor-XY triple monochromator system. Nanorods were characterized with high resolution transmission electron microscopy . HRTEM

Nabben, Reinhard

436

Phase plate technology for laser marking of magnetic discs  

DOE Patents [OSTI]

An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating. 3 figs.

Neuman, B.; Honig, J.; Hackel, L.; Dane, C.B.; Dixit, S.

1998-10-27T23:59:59.000Z

437

Phase plate technology for laser marking of magnetic discs  

DOE Patents [OSTI]

An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating.

Neuman, Bill (Livermore, CA); Honig, John (Livermore, CA); Hackel, Lloyd (Livermore, CA); Dane, C. Brent (Livermore, CA); Dixit, Shamasundar (Livermore, CA)

1998-01-01T23:59:59.000Z

438

A Schematic Method for Sustainable Material Selection of Toxic Chemicals in Design and Manufacturing  

E-Print Network [OSTI]

in the material selection process for sustainable design andfrom the perspectives of sustainable process design andinte- grated sustainable material selection process of toxic

Yuan, Chris Yingchun; David Dornfeld

2010-01-01T23:59:59.000Z

439

E-Print Network 3.0 - antares recoil time-of-flight Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

imaging... by the matter wave grating by coherently transferring an atom from the condensate into the recoil mode, which Source: Harvard University, Center for Ultracold Atoms,...

440

Mechanism of Type IIA Photosensitivity in Optical Fibers  

Science Journals Connector (OSTI)

Formation of the type IIA Bragg gratings in germanosilicate optical fibers is studied. A mechanism for the type IIA photosensitivity is proposed which is based on nucleation and...

Shlyagin, Mikhail; Kukushkin, Sergei

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Non-monotonous refractive index changes recorded in a phosphate glass optical fibre using 248nm, 500fs laser radiation  

Science Journals Connector (OSTI)

Results are presented on the photosensitivity behavior of a phosphate glass optical fibre using 248nm, 500fs laser radiation. Bragg grating exposures performed using a double phase...

Sozzi, Michele; Rahman, Aashia; Pissadakis, Stavros

2011-01-01T23:59:59.000Z

442

High Capacity Hydrogen Adsorption in Cu(II) Tetracarboxylate Framework Materials: The Role of Pore Size, Ligand Functionalization, and Exposed Metal Sites  

Science Journals Connector (OSTI)

We are grateful to STFC Daresbury Laboratory for the award of beam time on SRS Stations 9.8 and 16.2SMX and to Drs. ...

Xiang Lin; Irvin Telepeni; Alexander J. Blake; Anne Dailly; Craig M. Brown; Jason M. Simmons; Marco Zoppi; Gavin S. Walker; K. Mark Thomas; Timothy J. Mays; Peter Hubberstey; Neil R. Champness; Martin Schrder

2009-01-21T23:59:59.000Z

443

In-situ measurement with fiber Bragg sensors in lithium batteries for safety usage  

Science Journals Connector (OSTI)

Fiber Bragg grating sensors are integrated in lithium batteries to measure temperature variations during batteries operated under normal and abnormal conditions. The thermal...

Yang, Gang; Leito, Catia; Li, Yuhong; Pinto, Joo; Jiang, Xuefan

444

Download Full-text PDF  

Science Journals Connector (OSTI)

... been results pub- lished in the western literature (Savvaitova and Petr 1992; ..... We are very grateful to Todd Hinkley, USGS, Denver, Colorado, for suggesting...

2001-04-26T23:59:59.000Z

445

Contacts For "G" | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(509) 371-6500 Dr. Grate has a distinguished career in chemical microsensors and microfluidics integrating aspects of chemical, material and measurement sciences into new...

446

E-Print Network 3.0 - affecting facility development Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

R. - Department of Physics and Astronomy, University of Delaware Collection: Physics 7 Panel Feedback and Impact on the PALS Programmatic Recommendations We are grateful to the...

447

Proposal and experimental verification of Bragg wavelength distribution measurement within a long-length FBG by synthesis of optical coherence function  

Science Journals Connector (OSTI)

In this paper, a sensor system for measuring continuous Bragg wavelength distribution in a long-length fiber Bragg grating is newly proposed, using synthesis of optical coherence...

Hotate, Kazuo; Kajiwara, Koji

2008-01-01T23:59:59.000Z

448

E-Print Network 3.0 - ameca river basin Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

River is an inte- grated biophysical system, but the basin is ... Source: Northwest Power Planning Council Collection: Power Transmission, Distribution and Plants 13 Future of...

449

E-Print Network 3.0 - aci american concrete Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fellow Tarun R. Naik... are gratefully acknowledged. REFERENCES 1. Okamura, H., Self-Compacting High Performance Concrete, ACI Concrete... : Expanding the Possibility of Concrete...

450

Fast methods for inverse wave scattering problems  

E-Print Network [OSTI]

Inverse wave scattering problems arise in many applications including computerized/diffraction tomography, seismology, diffraction/holographic grating design, object identification from radar singals, and semiconductor ...

Lee, Jung Hoon, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

451

BONNEVILLE POWER ADMINISTRATION FOR IMMEDIATE RELEASE  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and grateful. BPA's setting a high bar in terms of gold certification," says Michael Armstrong, the bureau's research and innovation manager. BPA earned gold certification by...

452

Poly(3-hexyl-2,5-thienylene vinylene) by ADMET Polymerization of a Dipropenyl Monomer  

Science Journals Connector (OSTI)

The Initiative for Renewable Energy and the Environment (IREE) at the University of Minnesota and the Xcel Energy Renewable Development Fund are gratefully acknowledged for financial support. ...

Yang Qin; Marc A. Hillmyer

2009-07-09T23:59:59.000Z

453

Distannylated Isothianaphthene: A Versatile Building Block for Low Bandgap Conjugated Polymers  

Science Journals Connector (OSTI)

The Initiative for Renewable Energy and the Environment (IREE) at the University of Minnesota and the Xcel Energy Renewable Development Fund are gratefully acknowledged for financial support. ...

Yang Qin; Jung Yong Kim; C. Daniel Frisbie; Marc A. Hillmyer

2008-07-02T23:59:59.000Z

454

Technological assessment of light-trapping technology for thin-film Si solar cell.  

E-Print Network [OSTI]

??The proposed light trapping technology of Distributed Bragg Reflector (DBR) with Diffraction Grating (DG) and Anti-Reflection Coating (ARC) for thin film Si solar cell was (more)

Susantyoko, Rahmat Agung

2009-01-01T23:59:59.000Z

455

Quantum Chemistry Based Force Field for Simulations of HMX  

Science Journals Connector (OSTI)

Grant D. Smith * and Rishikesh K. Bharadwaj ... An allocation of computer time from the Center for High Performance Computing at the University of Utah is gratefully acknowledged. ...

Grant D. Smith; Rishikesh K. Bharadwaj

1999-04-21T23:59:59.000Z

456

A Metal-Ion Coordinated Hybrid Multilayer  

Science Journals Connector (OSTI)

A Metal-Ion Coordinated Hybrid Multilayer ... Support of this work by the Israel Science Foundation and the Israel Ministry of Science (Tashtiot Infrastructure Program), is gratefully acknowledged. ...

Anat Hatzor; Tamar van der Boom-Moav; Shira Yochelis; Alexander Vaskevich; Abraham Shanzer; Israel Rubinstein

2000-04-21T23:59:59.000Z

457

A Low Cost Spectrographic Attachment for an Echelle Spectrometer  

Science Journals Connector (OSTI)

The report describes a simple, low cost photographic attachment for an echelle spectrometer. The crossed dispersion prism/echelle grating system provides a high resolution spectrum...

Brackett, John M; Mitchell, Joel C; Vickers, Thomas J

1983-01-01T23:59:59.000Z

458

Using Localized Plasmon Resonances to Enhance Absorption Efficiency in Thin-film Organic Solar Cells  

Science Journals Connector (OSTI)

We propose the use of localized surface plasmon modes excited by square metallic gratings to enhance the optical absorption of thin-film organic solar cells. Broadband absorption...

Le, Khai Q; Abass, Aimi; Maes, Bjorn; Bienstman, Peter; Alu, Andrea

459

E-Print Network 3.0 - author denis guedj Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NUMBER 5 1 FEBRUARY 1999... an important role in future IV-IV microelectronics and optoelectronics. The authors gratefully acknowledge... . Phys. Lett., Vol. 74, No. 5, 1 February...

460

Ion  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

calibration The absolute calibration is performed with an integrating sphere (Optronics Laboratories model 455-8-1) whose spectral radiance is precisely known. The grating...

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Structural Health Monitoring Using FBGs for Aerospace and Composite Manufacturing  

Science Journals Connector (OSTI)

Fiber Bragg gratings may be utilized to monitor the structural integrity of key components of aerospace structures including composite parts, adhesive joints and deformation of...

Udd, Eric

462

E-Print Network 3.0 - arabidopsis nucleolus suggests Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

- pricing schemes that use the game-theoretic concept of the nucleolus to provide price estimates for each... are grateful to David Johnson, Evan Kwerel, and David Parkes,...

463

E-Print Network 3.0 - acute hemolytic transfusion Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

we are grateful to Dr Descazeaud, Summary: is a cornerstone of the management of sickle cell disease but carries a high risk of hemolytic transfusion reaction... and...

464

EveningCollege MSUAlumniAssociation/EveningCollege  

E-Print Network [OSTI]

gratefully acknowledges the following for their generous support: Burcham Hills Retirement Community, East & Recreation Forest Akers Golf Courses Holocaust Memorial Center, Detroit Kellogg Center for Continuing

465

Modified Schwarzschild imaging spectrometer with a low F-number and a long slit  

Science Journals Connector (OSTI)

A modified Schwarzschild imaging spectrometer utilizing three nonconcentric aspheric mirrors and a plane grating is designed that can handle low F-number, long slit, and broad spectral...

Xue, Qingsheng

2013-01-01T23:59:59.000Z

466

E-Print Network 3.0 - annular bragg lasers Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

volume Bragg gratings recorded in a photo... temperatures up to 400C, high power laser radiation. Transmitting and ... Source: Glebov, Leon - School of Optics (CREOLE),...

467

ESS 2012 Peer Review - Experimental Investigation of Silicon...  

Broader source: Energy.gov (indexed) [DOE]

27, 2012 Robert Kaplar, David Hughart, Sandeepan DasGupta, Matthew Marinella, Mark Smith, and Stanley Atcitty The authors gratefully acknowledge the support of Dr. Imre Gyuk...

468

I NUREGICR--5688  

Office of Scientific and Technical Information (OSTI)

vided by Robert Armstrong, David Crouthamel, Chongwei Ran, Shyh-shyan Hsu, and David Smith. Mike Porter has typed, assembled, and produced the report. We gratefully acknowledge...

469

Procuring Fuel Cells for Stationary Power: A Guide for Federal...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Energy), and Asim Hussain (Bloom Energy). For comprehensive editing, publication, and Web support, we are grateful to Ashley Smith (Sentech SRA International) and Sheena...

470

E-Print Network 3.0 - air furnace design Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

IN MUNICIPAL INCINERATOR Summary: cal to good furnace performance and to mainten ance of air pollution control. Early in 1967 the writer... of the grate roughly equivalent to...

471

Transverse instability of energy-exchanging counterpropagating waves in photorefractive media  

Science Journals Connector (OSTI)

The transverse instability of counterpropagating waves in photorefractive media that is due to the formation of reflection gratings is studied. We obtain new solutions for the...

Safiman, M; Zozulya, A A; Anderson, D Z

1994-01-01T23:59:59.000Z

472

Document  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

December 7, 2000 December 7, 2000 Part II Environmental Protection Agency 40 CFR Parts 9, 141, and 142 National Primary Drinking Water Regulations; Radionuclides; Final Rule VerDate 112000 13:43 Dec 06, 2000 Jkt 194001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\07DER2.SGM pfrm11 PsN: 07DER2 76708 Federal Register / Vol. 65, No. 236 / Thursday, December 7, 2000 / Rules and Regulations ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 9, 141, and 142 [FRL-6909-3] RIN 2040-AC98 National Primary Drinking Water Regulations; Radionuclides; Final Rule AGENCY: Environmental Protection Agency. ACTION: Final rule. SUMMARY: Today, EPA is finalizing maximum contaminant level goals (MCLGs), maximum contaminant levels (MCLs), and monitoring, reporting, and public notification requirements for radionuclides. Today's rule is only

473

Federal Register Volume 75 Number 103; Friday, May 28, 2010  

Broader source: Energy.gov (indexed) [DOE]

5:17 May 27, 2010 5:17 May 27, 2010 Jkt 220001 PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 E:\FR\FM\28MYP1.SGM 28MYP1 WReier-Aviles on DSKGBLS3C1PROD with PROPOSALS Federal Register / Vol. 75, No. 103 / Friday, May 28, 2010 / Proposed Rules 29933 DEPARTMENT OF ENERGY 10 CFR Parts 433 and 435 [Docket No. EE-RM/STD-02-112] RIN 1904-AC13 Energy Efficiency and Sustainable Design Standards for New Federal Buildings AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notice of proposed rulemaking. SUMMARY: The U.S. Department of Energy (DOE) is publishing this notice of proposed rulemaking (NOPR) to implement provisions of the Energy Conservation and Production Act, as amended by the Energy Policy Act of 2005 and the Energy Independence and Security Act of 2007, that require DOE

474

Federal Register Volume 75 Number 240; Wednesday, December 15, 2010  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0 Dec 14, 2010 0 Dec 14, 2010 Jkt 223001 PO 00000 Frm 00029 Fmt 4703 Sfmt 4703 E:\FR\FM\15DEN1.SGM 15DEN1 hsrobinson on DSK69SOYB1PROD with NOTICES Federal Register / Vol. 75, No. 240 / Wednesday, December 15, 2010 / Notices 78231 Relay Service (FIRS) at 1-800-877- 8339. [FR Doc. 2010-31503 Filed 12-14-10; 8:45 am] BILLING CODE 4000-01-P DEPARTMENT OF ENERGY Office of Energy Efficiency and Renewable Energy Management of Energy and Water Efficiency in Federal Buildings: Availability of Guidance AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notice of availability. SUMMARY: This notice of availability announces that the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), Federal Energy Management

475

Federal Register Volume 75 Number 199; Friday, October 15, 2010  

Broader source: Energy.gov (indexed) [DOE]

00 Oct 14, 2010 00 Oct 14, 2010 Jkt 223001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\15OCP1.SGM 15OCP1 mstockstill on DSKH9S0YB1PROD with PROPOSALS 63404 Federal Register Proposed Rules Vol. 75, No. 199 Friday, October 15, 2010 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF ENERGY 10 CFR Parts 433 and 435 [Docket No. EERE-2010-BT-STD-0031] RIN 1904-AB96 Fossil Fuel-Generated Energy Consumption Reduction for New Federal Buildings and Major Renovations of Federal Buildings AGENCY: Office of Energy Efficiency and Renewable Energy, Department of

476

Notice of public meeting and availability of the preliminary technical support document  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

05 Jul 09, 2012 05 Jul 09, 2012 Jkt 226001 PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 E:\FR\FM\10JYP1.SGM 10JYP1 wreier-aviles on DSK6TPTVN1PROD with PROPOSALS 40530 Federal Register / Vol. 77, No. 132 / Tuesday, July 10, 2012 / Proposed Rules in the levels of production necessary for Board membership for each unit. Section 1220.201(d) of the Order provides that at the end of each 3-year period, the Secretary must review the volume of production of each unit and adjust the boundaries of any unit and the number of Board members from each such unit as necessary to conform with the criteria set forth in § 1220.201(e): (1) To the extent practicable, States with annual average soybean production of less than 3,000,000 bushels shall be grouped into geographically contiguous units, each of

477

Document  

Broader source: Energy.gov (indexed) [DOE]

May 9, 2006 Part III Department of Energy 10 CFR Parts 600 and 603 Assistance Regulations; Final Rule VerDate Aug2005 17:47 May 08, 2006 Jkt 208001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\09MYR3.SGM 09MYR3 jlentini on PROD1PC65 with RULES3 27158 Federal Register / Vol. 71, No. 89 / Tuesday, May 9, 2006 / Rules and Regulations DEPARTMENT OF ENERGY 10 CFR Parts 600 and 603 RIN 1991-AB72 Assistance Regulations AGENCY: Department of Energy. ACTION: Final rule. SUMMARY: The Department of Energy (DOE) is adopting, with minor changes, the interim final rule published on November 15, 2005, that established a new part to the DOE assistance regulations and revised 10 CFR part 600, subpart A to conform with the new part. The new part establishes policies and

478

Federal Register Volume 72 Number 117; Tuesday, June 19, 2007  

Broader source: Energy.gov (indexed) [DOE]

5:19 Jun 18, 2007 5:19 Jun 18, 2007 Jkt 211001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\19JNP1.SGM 19JNP1 ebenthall on PRODPC61 with PROPOSALS 33696 Federal Register Proposed Rules Vol. 72, No. 117 Tuesday, June 19, 2007 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF ENERGY Office of Energy Efficiency and Renewable Energy 10 CFR Part 436 RIN 1904-AB68 Federal Procurement of Energy Efficient Products AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy (DOE). ACTION: Notice of proposed rulemaking. SUMMARY: The Department of Energy

479

Federal Register Volume 66 Number 191; Tuesday, October 2, 2001  

Broader source: Energy.gov (indexed) [DOE]

18:53 Oct 01, 2001 18:53 Oct 01, 2001 Jkt 197001 PO 00000 Frm 00014 Fmt 4703 Sfmt 4703 E:\FR\FM\02OCN1.SGM pfrm01 PsN: 02OCN1 50177 Federal Register / Vol. 66, No. 191 / Tuesday, October 2, 2001 / Notices Walk-in testimony will be accepted as the schedule permits, with priority given to those who have reserved time in advance. Individuals who visit the Las Vegas Science Center to provide testimony will do so in the FOIA (Freedom of Information Act) Reading Room. In addition, citizens can visit DOE Science Centers located in Pahrump, Nevada, and Beatty, Nevada, to submit written comments until the close of the comment period. Comments can also be submitted via e-mail through the web site at www.ymp.gov. Additional information on the comment process at the Science Centers

480

Monday,  

Broader source: Energy.gov (indexed) [DOE]

December 20, 2004 December 20, 2004 Part V Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Chapter 1, et al. Federal Acquisition Circular 2001-26; Introduction, Federal Acquisition Regulation; Electronic Representations and Certifications, et al.; Final Rules VerDate jul2003 20:26 Dec 17, 2004 Jkt 205001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\20DER4.SGM 20DER4 76340 Federal Register / Vol. 69, No. 243 / Monday, December 20, 2004 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL SERVICES ADMINISTRATION NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 48 CFR Chapter 1 Federal Acquisition Circular 2001-26; Introduction AGENCIES: Department of Defense (DoD), General Services Administration (GSA), and National Aeronautics and Space

Note: This page contains sample records for the topic "monochromator sgm gratings" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Federal Register Volume 71 Number 30; Tuesday, February 14, 2006  

Broader source: Energy.gov (indexed) [DOE]

46 Feb 13, 2006 46 Feb 13, 2006 Jkt 208001 PO 00000 Frm 00029 Fmt 4703 Sfmt 4703 E:\FR\FM\14FEN1.SGM 14FEN1 rmajette on PROD1PC67 with NOTICES 7749 Federal Register / Vol. 71, No. 30 / Tuesday, February 14, 2006 / Notices Abstract: IPEDS is a system of surveys designed to collect basic data from approximately 6,600 Title IV postsecondary institutions in the United States. The IPEDS provides information on numbers of students enrolled, degrees completed, other awards earned, dollars expended, staff employed at postsecondary institutions, and cost and pricing information. The amendments to the Higher Education Act of 1998, Part C, Sec. 131, specify the need for the ''redesign of relevant data systems to improve the usefulness and timeliness of the data collected by such

482

Final FR BCEPS NOPR 1904 AB57  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

22:02 Mar 26, 2012 22:02 Mar 26, 2012 Jkt 226001 PO 00000 Frm 00002 Fmt 4701 Sfmt 4702 E:\FR\FM\27MRP2.SGM 27MRP2 sroberts on DSK6SPTVN1PROD with PROPOSALS 18478 Federal Register / Vol. 77, No. 59 / Tuesday, March 27, 2012 / Proposed Rules DEPARTMENT OF ENERGY 10 CFR Part 430 [Docket Number EERE-2008-BT-STD- 0005] RIN 1904-AB57 Energy Conservation Program: Energy Conservation Standards for Battery Chargers and External Power Supplies AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notice of proposed rulemaking (NOPR) and public meeting. SUMMARY: The Energy Policy and Conservation Act (EPCA) prescribes energy conservation standards for various consumer products and commercial and industrial equipment, including battery chargers and external

483

Document  

Broader source: Energy.gov (indexed) [DOE]

June 30, 2003 June 30, 2003 Part II Department of Energy Privacy Act of 1974; Publication of Compilation of Systems of Records; Notice VerDate Jan2003 18:47 Jun 27, 2003 Jkt 200001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\30JNN2.SGM 30JNN2 38756 Federal Register / Vol. 68, No. 125 / Monday, June 30, 2003 / Notices DEPARTMENT OF ENERGY Privacy Act of 1974; Publication of Compilation of Systems of Records AGENCY: Department of Energy. ACTION: Notice. SUMMARY: As required by the Privacy Act of 1974, 5 U.S.C. 552a, and the Office of Management and Budget (OMB) Circular A-130, the Department of Energy (DOE or Department) is publishing its compilation of Privacy Act Systems of Records. This notice provides an accurate and complete text of the agency's systems of records, and

484

NOPM and Availability of Framework Document for HID Lamps  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8:48 Feb 27, 2012 8:48 Feb 27, 2012 Jkt 226001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\28FEP1.SGM 28FEP1 mstockstill on DSK4VPTVN1PROD with PROPOSALS Federal Register / Vol. 77, No. 39 / Tuesday, February 28, 2012 / Proposed Rules 11785 collections for particular program, except where required by statute. III. Questions for Comment The list below includes the questions about these reform ideas that address issues which are of greatest interest to OMB at this stage of the process. Comments addressing any other concerns, and other types of feedback, are also welcome. In addition, as was explained at the beginning of this notice, the public comments received by OMB will be posted on OMB's Web site and at http:// www.regulations.gov. Accordingly, please do not include in your comments

485

Federal Register Volume 73 Number 8; Friday, January 11, 2008  

Broader source: Energy.gov (indexed) [DOE]

33 Jan 10, 2008 33 Jan 10, 2008 Jkt 214001 PO 00000 Frm 00018 Fmt 4703 Sfmt 4703 E:\FR\FM\11JAN1.SGM 11JAN1 ebenthall on PRODPC61 with NOTICES 2017 Federal Register / Vol. 73, No. 8 / Friday, January 11, 2008 / Notices Energy; and provide comments and recommendations and priorities for the Department of Energy Annual Plan requirements of the Energy Policy Act of 2005, Subtitle J, Section 999. Tentative Agenda: 7:30 a.m.-8 a.m. Registration 8 a.m.-12 p.m. Welcome & Introductions, Opening Remarks by the Designated Federal Officer, Update Status of the 2007 Program, Overview of 2008 Annual Plan Draft, and Overview of the National Energy Technology Laboratory Complementary Research Program. 12 p.m.-1 p.m. Lunch. 1 p.m.-4 p.m. Committee Discussions. 4 p.m.-4:30 p.m. New Business: Plans

486

Federal Register Volume 75 Number 199; Friday, October 15, 2010  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

00 Oct 14, 2010 00 Oct 14, 2010 Jkt 223001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\15OCP1.SGM 15OCP1 mstockstill on DSKH9S0YB1PROD with PROPOSALS 63404 Federal Register Proposed Rules Vol. 75, No. 199 Friday, October 15, 2010 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF ENERGY 10 CFR Parts 433 and 435 [Docket No. EERE-2010-BT-STD-0031] RIN 1904-AB96 Fossil Fuel-Generated Energy Consumption Reduction for New Federal Buildings and Major Renovations of Federal Buildings AGENCY: Office of Energy Efficiency and Renewable Energy, Department of

487

Federal Register Volume 66 Number 191; Tuesday, October 2, 2001  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

18:53 Oct 01, 2001 18:53 Oct 01, 2001 Jkt 197001 PO 00000 Frm 00014 Fmt 4703 Sfmt 4703 E:\FR\FM\02OCN1.SGM pfrm01 PsN: 02OCN1 50177 Federal Register / Vol. 66, No. 191 / Tuesday, October 2, 2001 / Notices Walk-in testimony will be accepted as the schedule permits, with priority given to those who have reserved time in advance. Individuals who visit the Las Vegas Science Center to provide testimony will do so in the FOIA (Freedom of Information Act) Reading Room. In addition, citizens can visit DOE Science Centers located in Pahrump, Nevada, and Beatty, Nevada, to submit written comments until the close of the comment period. Comments can also be submitted via e-mail through the web site at www.ymp.gov. Additional information on the comment process at the Science Centers

488

Energy Conservation Program: Public Meeting and Availability of Preliminary Technical Support Documents for Energy Conservation Standards for Distribution Transformers, Federal Register, Vol. 76, No. 41, Wednesday, March 2, 2011, Proposed Rules.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Mar 01, 2011 2 Mar 01, 2011 Jkt 223001 PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 E:\FR\FM\02MRP1.SGM 02MRP1 emcdonald on DSK2BSOYB1PROD with PROPOSALS 11396 Federal Register / Vol. 76, No. 41 / Wednesday, March 2, 2011 / Proposed Rules minimal amount of burden on society to obtain regulatory objectives. The Executive Order also emphasizes the importance of meaningful public participation in the rulemaking process, and encourages agencies to increase their use of online technologies to simplify and facilitate participation for all stakeholders. Executive Order 13563 also requires agencies to coordinate, simplify, and harmonize regulations to reduce costs and promote certainty for businesses and the public. The Executive Order recognizes that these principles should not only guide

489

Energy Conservation standards for Wine Chillers and Miscellaneous Refrigeration Products: Notice of Public Meeting and Availability of the Framework Document  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

45 Feb 10, 2012 45 Feb 10, 2012 Jkt 226001 PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 E:\FR\FM\13FEP1.SGM 13FEP1 erowe on DSK2VPTVN1PROD with PROPOSALS-1 7547 Federal Register / Vol. 77, No. 29 / Monday, February 13, 2012 / Proposed Rules that have tribal implications or preempt tribal laws. Rural Development has determined that the rule does not have a substantial direct effect on one or more Indian tribe(s) or on either the relationship or the distribution of powers and responsibilities between the Federal Government and Indian tribes. Thus, this rule is not subject to the requirements of Executive Order 13175. If a tribe determines that this rule has implications of which Rural Development is not aware and would like to engage with Rural Development on this rule, please contact Rural

490

Document  

Broader source: Energy.gov (indexed) [DOE]

March 19, 2009 March 19, 2009 Part II Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Chapter 1 and Parts 1, 3, et al. Federal Acquisition Regulations; Final Rules, Interim Rules, and Small Entity Compliance Guide VerDate Nov2008 17:29 Mar 18, 2009 Jkt 217001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\19MRR2.SGM 19MRR2 pwalker on PROD1PC71 with RULES2 11820 Federal Register / Vol. 74, No. 52 / Thursday, March 19, 2009 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL SERVICES ADMINISTRATION NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 48 CFR Chapter 1 [Docket FAR 2009-0001, Sequence 2] Federal Acquisition Regulation; Federal Acquisition Circular 2005-31; Introduction AGENCIES: Department of Defense (DoD),

491

Correction: Federal Register Volume 75 Number 199; Friday, October 15, 2010  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 Oct 26, 2010 5 Oct 26, 2010 Jkt 223001 PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 E:\FR\FM\27OCP1.SGM 27OCP1 jlentini on DSKJ8SOYB1PROD with PROPOSALS 66008 Federal Register / Vol. 75, No. 207 / Wednesday, October 27, 2010 / Proposed Rules Publicly available documents created or received at the NRC, including petitions for rulemaking PRM-50-93 (ADAMS Accession No. ML093290250) and PRM-50-95 (ADAMS Accession No. ML101610121), are available electronically at the NRC's Electronic Reading Room at http://www.nrc.gov/ reading-rm/adams.html. From this page, the public can gain entry into ADAMS, which provides text and image files of NRC's public documents. If you do not have access to ADAMS or if there are problems in accessing the documents located in ADAMS, contact the NRC's

492

Federal Register Volume 71 Number 160; Friday, August 18, 2006  

Broader source: Energy.gov (indexed) [DOE]

35 Aug 17, 2006 35 Aug 17, 2006 Jkt 208001 PO 00000 Frm 00020 Fmt 4703 Sfmt 4703 E:\FR\FM\18AUN1.SGM 18AUN1 jlentini on PROD1PC65 with NOTICES 47791 Federal Register / Vol. 71, No. 160 / Friday, August 18, 2006 / Notices The goal of the Centers for Independent Living program is to promote and practice the independent living philosophy of consumer control of the center regarding decisionmaking, service delivery, management, and establishment of the policy and direction of the center; self-help and self-advocacy; development of peer relationships and peer role models; and the equal access of individuals with significant disabilities to society and to all services, programs, activities, resources, and facilities, whether public or private and regardless of the funding

493

Tuesday,  

Broader source: Energy.gov (indexed) [DOE]

December 28, 2004 December 28, 2004 Part III Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Chapter 1, Parts 5, 6, et al. Federal Acquisition Circular 2001-27; Introduction, Free Trade Agreements- Australia and Morocco; Small Entity Compliance Guide; Final Rules VerDate jul2003 18:58 Dec 27, 2004 Jkt 205001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\28DER2.SGM 28DER2 77870 Federal Register / Vol. 69, No. 248 / Tuesday, December 28, 2004 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL SERVICES ADMINISTRATION NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 48 CFR Chapter 1 Federal Acquisition Circular 2001-27; Introduction AGENCIES: Department of Defense (DoD), General Services Administration (GSA), and National Aeronautics and Space

494

Federal Register Volume 71 Number 232; Monday, December 4, 2006  

Broader source: Energy.gov (indexed) [DOE]

2:11 Dec 01, 2006 2:11 Dec 01, 2006 Jkt 211001 PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 E:\FR\FM\04DER1.SGM 04DER1 mstockstill on PROD1PC61 with RULES 70275 Federal Register Rules and Regulations Vol. 71, No. 232 Monday, December 4, 2006 This section of the FEDERAL REGISTER contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510. The Code of Federal Regulations is sold by the Superintendent of Documents. Prices of new books are listed in the first FEDERAL REGISTER issue of each week. DEPARTMENT OF AGRICULTURE Rural Utilities Service 7 CFR Part 1792 RIN 0572-AC01 Seismic Safety AGENCY: Rural Utilities Service, USDA.

495

Federal Register Volume 72 Number 245; Friday, December 21, 2007  

Broader source: Energy.gov (indexed) [DOE]

20 Dec 20, 2007 20 Dec 20, 2007 Jkt 214001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\21DER1.SGM 21DER1 sroberts on PROD1PC70 with RULES Federal Register / Vol. 72, No. 245 / Friday, December 21, 2007 / Rules and Regulations 72565 DEPARTMENT OF ENERGY Office of Energy Efficiency and Renewable Energy 10 CFR Parts 433, 434, and 435 [Docket No. EE-RM/STD-02-112] RIN 1904-AB13 Energy Conservation Standards for New Federal Commercial and Multi- Family High-Rise Residential Buildings and New Federal Low-Rise Residential Buildings AGENCY: Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Final rule. SUMMARY: The U.S. Department of Energy (DOE) is adopting with changes the interim final rule published on December 4, 2006 (71 FR 70275) that implemented provisions in the Energy

496

Public Meeting and Availability of Statement of Policy for Adopting Full-Fuel-Cycle Analyses Into Energy Conservation Standards Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

10 Aug 19, 2010 10 Aug 19, 2010 Jkt 220001 PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 E:\FR\FM\20AUP1.SGM 20AUP1 jdjones on DSK8KYBLC1PROD with PROPOSALS-1 51423 Federal Register Proposed Rules Vol. 75, No. 161 Friday, August 20, 2010 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. DEPARTMENT OF ENERGY 10 CFR Part 431 [Docket No (EERE-2010-BT-NOA-0028)] RIN 1904-AC24 Energy Conservation Program for Consumer Products and Certain Commercial and Industrial Equipment: Public Meeting and Availability of Statement of Policy for Adopting Full- Fuel-Cycle Analyses Into Energy

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Federal Register Volume 71 Number 160; Friday, August 18, 2006  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

35 Aug 17, 2006 35 Aug 17, 2006 Jkt 208001 PO 00000 Frm 00020 Fmt 4703 Sfmt 4703 E:\FR\FM\18AUN1.SGM 18AUN1 jlentini on PROD1PC65 with NOTICES 47791 Federal Register / Vol. 71, No. 160 / Friday, August 18, 2006 / Notices The goal of the Centers for Independent Living program is to promote and practice the independent living philosophy of consumer control of the center regarding decisionmaking, service delivery, management, and establishment of the policy and direction of the center; self-help and self-advocacy; development of peer relationships and peer role models; and the equal access of individuals with significant disabilities to society and to all services, programs, activities, resources, and facilities, whether public or private and regardless of the funding

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Document  

Broader source: Energy.gov (indexed) [DOE]

October 1, 2003 Part II Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Parts 1, 2, et al. Federal Acquisition Regulations; Final and Interim Rules VerDate jul2003 16:45 Sep 30, 2003 Jkt 203001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\01OCR2.SGM 01OCR2 56668 Federal Register / Vol. 68, No. 190 / Wednesday, October 1, 2003 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL SERVICES ADMINISTRATION NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 48 CFR Chapter 1 Federal Acquisition Circular 2001-16; Introduction AGENCIES: Department of Defense (DoD), General Services Administration (GSA), and National Aeronautics and Space Administration (NASA). ACTION: Summary presentation of final and interim rules, and technical

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Document  

Broader source: Energy.gov (indexed) [DOE]

January 15, 2009 Part III Department of Defense General Services Administration National Aeronautics and Space Administration 48 CFR Parts 2, 3, 12 et al. Federal Acquisition Regulation; Final Rules and Small Entity Compliance Guide VerDate Nov2008 21:31 Jan 14, 2009 Jkt 217001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\15JAR3.SGM 15JAR3 sroberts on PROD1PC70 with RULES 2710 Federal Register / Vol. 74, No. 10 / Thursday, January 15, 2009 / Rules and Regulations DEPARTMENT OF DEFENSE GENERAL SERVICES ADMINISTRATION NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 48 CFR Chapter 1 [Docket FAR 2009-0012, Sequence 1] Federal Acquisition Regulation; Federal Acquisition Circular 2005-30; Introduction AGENCIES: Department of Defense (DoD), General Services Administration (GSA),

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Correction: Federal Register Volume 75 Number 199; Friday, October 15, 2010  

Broader source: Energy.gov (indexed) [DOE]

25 Oct 26, 2010 25 Oct 26, 2010 Jkt 223001 PO 00000 Frm 00014 Fmt 4702 Sfmt 4702 E:\FR\FM\27OCP1.SGM 27OCP1 jlentini on DSKJ8SOYB1PROD with PROPOSALS 66008 Federal Register / Vol. 75, No. 207 / Wednesday, October 27, 2010 / Proposed Rules Publicly available documents created or received at the NRC, including petitions for rulemaking PRM-50-93 (ADAMS Accession No. ML093290250) and PRM-50-95 (ADAMS Accession No. ML101610121), are available electronically at the NRC's Electronic Reading Room at http://www.nrc.gov/ reading-rm/adams.html. From this page, the public can gain entry into ADAMS, which provides text and image files of NRC's public documents. If you do not have access to ADAMS or if there are problems in accessing the documents located in ADAMS, contact the NRC's