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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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1

Women @ Energy: Dot Harris | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolations | DepartmentDeborah Joanne Bard Women @Dot Harris

2

Harry Potter, Oxford and Nuclear Energy | Department of Energy  

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

Harry Potter, Oxford and Nuclear Energy Harry Potter, Oxford and Nuclear Energy July 16, 2012 - 1:30pm Addthis Assistant Secretary Dr. Peter Lyons meets with students on the Oxford...

3

Here to Serve | Department of Energy  

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

Here to Serve Here to Serve May 11, 2012 - 8:53am Addthis Dot Harris Dot Harris Director, Office of Economic Impact and Diversity It is a pleasure to join the Administration as the...

4

This is our Future: Secretary Chu and Senator Udall Speak on...  

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

Women and Minorities to the Wind Industry December 21, 2012 - 12:15pm Addthis Dot Harris Dot Harris Director, Office of Economic Impact and Diversity This past Wednesday, the...

5

Energy Secretary Moniz Announces New Energy Initiative and Joins...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Bobby Rush for Minorities in Energy Roundtable June 19, 2014 - 1:40pm Addthis Dot Harris Dot Harris Director, Office of Economic Impact and Diversity This Friday, Secretary of...

6

Fossil Energy Acting Assistant Secretary Recognized at Black...  

Energy Savers [EERE]

the Year Awards February 19, 2013 - 8:54am Addthis Director Dot Harris presents Chris Smith, Principal Deputy Assistant Secretary and Acting Assistant Secretary of Fossil Energy,...

7

2006 BEEKEEPING Young Harris College  

E-Print Network [OSTI]

2006 BEEKEEPING INSTITUTE May 18-20 Young Harris College Young Harris, Georgia #12;Young Harris in honey, the Honey Show includes classes in photography, art, candles, section comb honey, mead

Delaplane, Keith S.

8

BEEKEEPING INSTITUTE Young Harris College  

E-Print Network [OSTI]

2008 BEEKEEPING INSTITUTE May 15-17 Young Harris College Young Harris, Georgia #12;Young Harris, section comb honey, mead, and beekeeping gadgets. We urge students to participate in the Institute Honey

Delaplane, Keith S.

9

BEEKEEPING INSTITUTE Young Harris College  

E-Print Network [OSTI]

2007 BEEKEEPING INSTITUTE May 17-19 Young Harris College Young Harris, Georgia #12;Young Harris in photography, art, candles, cut- comb honey, mead, and beekeeping gadgets. We urge students to participate for Observation Hives, Tom Webster 10:00 BREAK 10:30 Spring and Summer Management, One Perspective, Dan Harris

Delaplane, Keith S.

10

Jeremy Cullis Michelle Harri  

E-Print Network [OSTI]

U W A J M T S A C T c m r t D T t u UNIVERSIT WHY USE E Author Jeremy Cullis Michelle Harri Troy photocopyin tted without p disclaims liabi y accepts no r ained. RARY: should be abl ool that will h copyright

Viglas, Anastasios

11

Two Queries Harry Buhrman  

E-Print Network [OSTI]

Two Queries Harry Buhrman #3; CWI PO Box 94079 1090 GB Amsterdam The Netherlands Lance Fortnow y \\ B) [ (A \\ B). For complexity classes C and D define the class C#1;D as fA#1;B j A 2 C and B 2 Dg

Fortnow, Lance

12

Mutual Search HARRY BUHRMAN  

E-Print Network [OSTI]

Mutual Search HARRY BUHRMAN C.W.I., Amsterdam, The Netherlands MATTHEW FRANKLIN Xerox PARC, Palo., Jan. 1998). ACM, New York. The work of H. Buhrman, J. Tromp, and P. Vitanyi was partially supported ESPRIT BRA IV NeuroColt II Working Group EP 27150. The work of J. A. Garay was partially supported by NWO

Vitanyi, Paul M.B.

13

Inexpensive Student-Assembled FPGA / Microcontroller Board Sarah Harris and David Harris  

E-Print Network [OSTI]

Inexpensive Student-Assembled FPGA / Microcontroller Board Sarah Harris and David Harris Department of Engineering Harvey Mudd College Claremont, CA 91711 {Sarah_Harris, David_Harris}@hmc.edu Abstract Digital

Harris, David Money

14

Talking Small Business in Knoxville, Tennessee | Department of...  

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

Talking Small Business in Knoxville, Tennessee July 18, 2012 - 2:11pm Addthis Dot Harris speaking live to WBIR, a local Knoxville television station, the morning of the Energy...

15

Empowering the Next Generation: Connecting the U.S. and African...  

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

Nations through Technical Exchanges July 31, 2014 - 2:55pm Addthis Director Dot Harris meets with Subramania I. Sritharan PhD, P.E., Central State University, and John J....

16

Creating What You Can Imagine, Changing the World | Department...  

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

Creating What You Can Imagine, Changing the World March 1, 2013 - 4:57pm Addthis Dot Harris, Director of the Department of Energys Office of Economic Impact and Diversity...

17

North Carolina Nuclear Profile - Harris  

U.S. Energy Information Administration (EIA) Indexed Site

Harris" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

18

Harry: Between the Lines  

E-Print Network [OSTI]

. As he reached the mangled car and started to climb in, Callahan found one problem hadn't been eliminated. Briggs. 34 The battered lieutenant held a gun on Callahan, ordering him out of the wreck. Harry couldn't reach Davis' gun, but he managed... undamaged. Davis was out like a light. He didn't stir as Callahan washed the battered face, and cleaned the worst of the mud and grime from his hair. Finally, he yanked the blanket from his bed to cover Davis. There didn't seem to be anything else to do...

Kurz, R.; White, T.

1982-01-01T23:59:59.000Z

19

Utah_k_harris  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500II Field EmissionFunctional Materials forHannahKirk Harris

20

The Harris Corner Detector Konstantinos G. Derpanis  

E-Print Network [OSTI]

will result in a significant increase; this indicates a corner. References [1] C. Harris and M.J. StephensThe Harris Corner Detector Konstantinos G. Derpanis kosta@cs.yorku.ca October 27, 2004 In this report the derivation of the Harris corner detector [1] is presented. The Harris corner detector

Salvaggio, Carl

Note: This page contains sample records for the topic "addthis dot harris" 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

December, 2007 Dear Dr Harris,  

E-Print Network [OSTI]

) 1865 273 418 Email: r.bartolini1@physics.ox.ac.uk for Accelerator Science J A I John Adams Institute03th December, 2007 Dear Dr Harris, I am writing, as your constituent, to express my worries about

Crowther, Paul

22

MONOMIAL REPRESENTATIONS M. Harris, Eilenberg lecture 3  

E-Print Network [OSTI]

MONOMIAL REPRESENTATIONS M. Harris, Eilenberg lecture 3 In the previous lecture I described Hecke. HARRIS, EILENBERG LECTURE 3 (5) Suppose is associated to a compatible family M ¯Q� of one

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

23

1 Globular Cluster Systems William E. Harris  

E-Print Network [OSTI]

1 Globular Cluster Systems William E. Harris Department of Physics & Astronomy, McMaster University; 2 W. E. Harris 7. The GCLF is evaluated as a standard candle for distance determination. For giant E

Harris, William E.

24

Page 1 of 3 Courtney K. Harris  

E-Print Network [OSTI]

Page 1 of 3 Courtney K. Harris Assistant Professor Virginia Institute of Marine Science Peer: Harris, C.K., C.R. Sherwood, R.P. Signell, A. Bever, and J.C. Warner. Dispersal of sediment.R. Sherwood, R.P. Signell, C.K. Harris, and H. Arango. Development of a three-dimensional, regional, coupled

Harris, Courtney K.

25

Increasing Kolmogorov Complexity Harry Buhrman  

E-Print Network [OSTI]

Increasing Kolmogorov Complexity Harry Buhrman Lance Fortnow Ilan Newman Nikolai Vereshchagin b(n, l) denote the binomial sum: b(n, l) = n 0 + n 1 + · · · + n l . Theorem 2 (Harper). Let J 2n . Take all the strings with less than l ones and take J - l first strings with l ones

Fortnow, Lance

26

Rewritable Glycochips L. G. Harris,  

E-Print Network [OSTI]

Rewritable Glycochips L. G. Harris, W. C. E. Schofield, K. J. Doores, B. G. Davis, and J. P. S. University of Oxford. (1) Dwek, R. A. Chem. ReV. 1996, 96, 683. (2) Kitov, P. I.; Sadowska, J. M.; Mulvey, G.; Armstrong, G. D.; Ling, H.; Pannu, N. S.; Read, R. J.; Bundle, D. R. Nature 2000, 403, 669. (3) Joo, K. L

Davis, Ben G.

27

FRANCOPHONE STUDIES Harry Gamble, Chair  

E-Print Network [OSTI]

with three broad objectives: (1) to develop high proficiency in the French language; (2) to inculcateFRENCH AND FRANCOPHONE STUDIES FACULTY: Harry Gamble, Chair Laura Burch Carolyn Durham Claire Hélin, (French Language Assistant) The Department of French and Francophone Studies offers a program of courses

Wilson, Mark A.

28

CMOS VLSI DesignCMOS VLSI Design David Harris  

E-Print Network [OSTI]

1 CMOS VLSI DesignCMOS VLSI Design David Harris Harvey Mudd College Claremont, CA 91711 [David_Harris. (3e) Baker, CMOS: Circuit Design, Layout, and Simulation (2e) Weste & Harris, CMOS VLSI Design (3e

Harris, David Money

29

May 14-16, 2009 Young Harris College, Young Harris, Georgia  

E-Print Network [OSTI]

May 14-16, 2009 Young Harris College, Young Harris, Georgia Master Beekeeper levels: · Certified · Journeyman · Master · Master Craftsman Young Harris College and the University of Georgia are offering, candles, section comb honey, mead, and beekeeping gadgets. We urge students to participate

Delaplane, Keith S.

30

Comments by Mary Celeste Harris on the Emergency Operation of...  

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

Mary Celeste Harris on the Emergency Operation of Mirant's Potomac River Generating Station. Comments by Mary Celeste Harris on the Emergency Operation of Mirant's Potomac River...

31

ARITHMETIC OF THE OSCILLATOR REPRESENTATION Michael Harris  

E-Print Network [OSTI]

ARITHMETIC OF THE OSCILLATOR REPRESENTATION Michael Harris §1. Moduli 1.1. Let V = Q2g , and let schemes g N : Ag N [N] - (N-1 T/T)Mg N . Typeset by AMS-TEX 1 #12;2 MICHAEL HARRIS 1.3. Let : Ag N Mg N

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

32

Allen Clement1 , Harry Li1  

E-Print Network [OSTI]

BAR Primer Allen Clement1 , Harry Li1 , Jeff Napper1 , Jean-Philippe Martin2 , Lorenzo Alvisi1 , Mike Dahlin1 1 University of Texas at Austin, 2 Microsoft Research Cambridge 1 {aclement, harry, jmn synchronous Repeated Terminating Reliable Broadcast (R- TRB) problem statement, leads to a provably BAR

Alvisi, Lorenzo

33

Cercartetus nanus (Diprotodontia: Burramyidae) JAMIE M. HARRIS  

E-Print Network [OSTI]

. Remillieux-Leschelle and J. M. Harris. MAMMALIAN SPECIES 815:1­10, 1 audio ( ) #12;Geoffroy SaintCercartetus nanus (Diprotodontia: Burramyidae) JAMIE M. HARRIS School of Environmental Science of Mammalogists Synonymy completed 1 May 2007 w w w . m a m m a l o g y . o r g Cercartetus nanus (Desmarest, 1817

Hayssen, Virginia

34

Harry Potter: Der siebte Horkrux   

E-Print Network [OSTI]

?rlich schlimmer. Er war nicht nur gezwungen, unangek?ndigt auf der T?rschwelle der Dursleys aufzukreuzen (etwas, was ihm deren ?rger einhandeln w?rde, wie ihm bewusst war), sondern musste ihnen auch noch mitteilen, dass zwei weitere Missgeburten an diesem... Nachmittag zu ihm sto?en w?rden. Seine Mundwinkel zuckten missmutig, w?hrend er sich vorstellte, wie sie die Neuigkeiten aufnehmen w?rden. Harry hatte sich vor etwa einer Stunde am Bahnhof Kings Cross von Ron und Hermine getrennt. Die beiden wollten einen...

melindaleo

2011-01-01T23:59:59.000Z

35

Harris Walker | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietip sheetK-4In 2013 many autoThis roadFourEnergy NiketaHarris

36

REGULAR MODELS OF CERTAIN SHIMURA VARIETIES Michael Harris1  

E-Print Network [OSTI]

Michael Harris1 UFR de Math'ematique, Universit'e Paris 7, 2 Pl. Jussieu 75251 Paris cedex 05, * *FRANCE the University of Durham (Harris and Tay- lor), Harvard University (Harris), the Institut Henri Poincar'e (Taylor), and R* *IMS and Kyoto University (Harris) for providing a hospitable working environment at different

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

37

Introductory Digital Design & Computer Architecture David Money Harris  

E-Print Network [OSTI]

Introductory Digital Design & Computer Architecture Curriculum David Money Harris Department of Engineering Harvey Mudd College Claremont, CA David_Harris@hmc.edu Sarah Harris Department of Engineering Harvey Mudd College Claremont, CA Sarah_Harris@hmc.edu Keywords--digital design, computer architecture

Harris, David Money

38

Harris County- LEED Requirement for County Buildings  

Broader source: Energy.gov [DOE]

In 2009, the Harris County Commissioners Court approved a measure that requires all new county buildings to meet minimum LEED certification standards. Buildings do not have to register with the the...

39

Harry J. Holzer John M. Quigley  

E-Print Network [OSTI]

Harry J. Holzer John M. Quigley Steven Raphael Public Transit and the Spatial Distribution, with particularly large effects for minority workers and individuals on public assistance (O'Regan and Quigley, 1999

Sekhon, Jasjeet S.

40

Quantum Algorithms for Element Distinctness Harry Buhrman  

E-Print Network [OSTI]

Quantum Algorithms for Element Distinctness Harry Buhrman Christoph D¨urr Mark Heiligman§ Peter, France. Email: durr@lri.fr. §NSA, Suite 6111, Fort George G. Meade, MD 20755, USA. Email: mheilig

Magniez, Frédéric

Note: This page contains sample records for the topic "addthis dot harris" 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

Quantum Algorithms for Element Distinctness Harry Buhrman  

E-Print Network [OSTI]

Quantum Algorithms for Element Distinctness Harry Buhrman£ Christoph D¨urr� Mark Heiligman� Peter, France. Email: durr@lri.fr. �NSA, Suite 6111, Fort George G. Meade, MD 20755, USA. Email: mheilig

de Wolf, Ronald

42

SCALING RANDOM WALKS ON ARBITRARY SETS Simon C. Harris  

E-Print Network [OSTI]

SCALING RANDOM WALKS ON ARBITRARY SETS by Simon C. Harris , Robin Sibson and David Williams School deterministic sets I. In the 1-dimensional case discussed here and in the following paper by Harris, much

Harris, Simon Colin

43

Pannexins or Connexins? Gerhard Dahl and Andrew L. Harris  

E-Print Network [OSTI]

Chapter 12 Pannexins or Connexins? Gerhard Dahl and Andrew L. Harris Abstract Pannexins, PO Box 016430, Miami, FL 33101, United States e-mail: gdahl@miami.edu A. Harris, D. Locke (eds

Harris, Andrew L.

44

Dependable Software Needs Pervasive Debugging Timothy L. Harris  

E-Print Network [OSTI]

Dependable Software Needs Pervasive Debugging Timothy L. Harris University of Cambridge Computer Laboratory J J Thomson Avenue, Cambridge, UK tim.harris@cl.cam.ac.uk Abstract Nobody would claim

Harris, Timothy

45

A Taxonomy of Parallel Prefix Networks David Harris  

E-Print Network [OSTI]

A Taxonomy of Parallel Prefix Networks David Harris Harvey Mudd College / Sun Microsystems Laboratories 301 E. Twelfth St. Claremont, CA 91711 David_Harris@hmc.edu Abstract - Parallel prefix networks

Harris, David Money

46

Reconvergent Fanout Removal Through Partial BIST Insertion Ian G. Harris  

E-Print Network [OSTI]

Reconvergent Fanout Removal Through Partial BIST Insertion Ian G. Harris Department of Electrical and Computer Engineering University of Massachusetts at Amherst E-mail: harris@ecs.umass.edu I. ABSTRACT

Harris, Ian G.

47

Logical Effort of Higher Valency Adders David Harris  

E-Print Network [OSTI]

Logical Effort of Higher Valency Adders David Harris Harvey Mudd College 301 E. Twelfth St. Claremont, CA 91711 David_Harris@hmc.edu Abstract ­ Higher valency parallel prefix adders reduce the number

Harris, David Money

48

Nathaniel Pinckney and David Money Harris Harvey Mudd College  

E-Print Network [OSTI]

Nathaniel Pinckney and David Money Harris Harvey Mudd College 301 Platt Blvd. Claremont, CA 91711 {npinckney, David_Harris}@hmc.edu ABSTRACT This paper describes a parallelized radix-4 scalable Montgomery

Harris, David Money

49

Secure Programming via Visibly Pushdown Safety Games William Harris  

E-Print Network [OSTI]

Safety Games William R. Harris1 , Somesh Jha1 , and Thomas Reps1,2 1 University of WisconsinComputer Sciences Department Secure Programming via Visibly Pushdown Safety Games William Harris

Reps, Thomas W.

50

Dependable Software Needs Pervasive Debugging Timothy L. Harris  

E-Print Network [OSTI]

Laboratory J J Thomson Avenue, Cambridge, UK tim.harris@cl.cam.ac.uk Abstract Nobody would claimDependable Software Needs Pervasive Debugging Timothy L. Harris University of Cambridge Computer

Hand, Steven

51

L-FUNCTIONS AND PERIODS OF ADJOINT MOTIVES Michael Harris  

E-Print Network [OSTI]

L-FUNCTIONS AND PERIODS OF ADJOINT MOTIVES Michael Harris UFR de Math´ematiques Universit´e Paris 7 for unitary groups, due to Neal Harris, with Deligne's conjecture on critical values of L-functions. When for inclusions of special orthogonal groups; the version for unitary groups, due to Neal Harris [NH], gives

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

52

Permeability of Connexin Channels Andrew L. Harris and Darren Locke  

E-Print Network [OSTI]

Chapter 7 Permeability of Connexin Channels Andrew L. Harris and Darren Locke Abstract Because Molecular permeability Á Second messengers A.L. Harris (*) Department of Pharmacology and Physiology, New, Newark, NJ 07103, United States e-mail: aharris@umdnj.edu A. Harris, D. Locke (eds.), Connexins: A Guide

Harris, Andrew L.

53

THE UNIVERSITY of CHICAGO THE IRVING B. HARRIS GRADUATE SCHOOL  

E-Print Network [OSTI]

THE UNIVERSITY of CHICAGO THE IRVING B. HARRIS GRADUATE SCHOOL of PUBLIC POLICY STUDIES ANNOUNCEMENTS Fall 2001 #12;More information regarding The Irving B. Harris Graduate School of Public Policy or doctoral program can be found on the World Wide Web, URL www.HarrisSchool.uchicago.edu/. Or you may contact

He, Chuan

54

Harry E Mynick | Princeton Plasma Physics Lab  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9 HanfordCellHarnessing the2HarrisHarry E

55

Harry Frank | Photosynthetic Antenna Research Center  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9 HanfordCellHarnessing the2HarrisHarry

56

Factorizations of Operator Matrices Lawrence A. Harris  

E-Print Network [OSTI]

Factorizations of Operator Matrices Lawrence A. Harris Mathematics Department University matrix as a product of an upper triangular operator matrix and an involutory, unitary or J- unitary L(H, K) and (A - WC)-1 exists; moreover, S = T-1 . Theorem 1 Put R = -(A - W0C) AZ0 + W0D 0 CZ0 + D

Harris, Larry

57

Derandomizing from Random Strings Harry Buhrman  

E-Print Network [OSTI]

Derandomizing from Random Strings Harry Buhrman CWI and University of Amsterdam buhrman c log n, R=c log n K , itself a strings of length nc , is complex enough to figure as a hard an alternative proof of the existence of an r.e. set A, due to Barzdin [4], such that for all time bounds t

Fortnow, Lance

58

Automatically Generating Plans for Manufacturing* Billy Harris  

E-Print Network [OSTI]

Automatically Generating Plans for Manufacturing* Billy Harris Diane J. Cook Frank Lewis§ January of action. ORGANIZATION LEVEL COORDINATION LEVEL EXECUTION LEVEL A B S T R A C T I O N P R E C I S I O N

Cook, Diane J.

59

Monomial Principalization in the Singular Corey Harris  

E-Print Network [OSTI]

Monomial Principalization in the Singular Setting Corey Harris Florida State University January 15, 2014 #12;Regular Sequences Let R be a ring and a1, . . . , ad R. a1, . . . , ad is a regular sequence if (a1, . . . , ad) R is a proper ideal and the image of ai in R/(a1, . . . , ai-1) is a non

60

Carbon nanotube composites P. J. F. Harris*  

E-Print Network [OSTI]

Carbon nanotube composites P. J. F. Harris* Carbon nanotubes are molecular-scale tubes of graphitic. There is currently great interest in exploiting these properties by incorporating carbon nanotubes into some form/ceramic and nanotube/metal composites. This review outlines the properties of carbon nanotubes and describes

Harris, Peter J F

Note: This page contains sample records for the topic "addthis dot harris" 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

Branching Random Walk in inhomogeneous breeding Sergey Bocharov, Simon C. Harris  

E-Print Network [OSTI]

Branching Random Walk in inhomogeneous breeding potential Sergey Bocharov, Simon C. Harris) If p > 2 then Texplo Harris and S. Harris [7]. Theorem 1.4 (J. Harris and S. Harris). Consider a BBM model. a) If p [0, 2) then lim t Rt t

Harris, Simon Colin

62

BiographicalNotes HarryLevitt  

E-Print Network [OSTI]

BiographicalNotes HarryLevitt I began lifeinthe Queen VictoriaNursing Home, Johannesburg and theregistrar of births and deaths. The l a t t e ri ss t i l lw a i t i n gf o r my second registration.This was particularlydishearteninginthatlaws can be changed f a r more easily t h a n attitudes. In fact,there were many times when I f e l

Allen, Jont

63

Robust Polynomials and Quantum Algorithms Harry Buhrman  

E-Print Network [OSTI]

Robust Polynomials and Quantum Algorithms Harry Buhrman Ilan Newman Hein R¨ohrig§ Ronald de Wolf are of interest in them- selves and have been the object of study for a while. Their minimal degree is H.B., H.R., and R.d.W. supported in part by the EU fifth framework projects QAIP, IST-1999-11234, and RESQ, IST-2001

de Wolf, Ronald

64

Elena Yavorska Harris PHONE: +1(760) 948-5939  

E-Print Network [OSTI]

, Riverside. #12;PEER REVIEWED JOURNAL PAPERS [J1] E. Y. Harris, N. Ponts, K. Le Roch and S. Lonardi, "BRAT.1186/1471-2164-12-601. (Impact factor: 2.75). http://www.biomedcentral.com/1471-2164/12/601/abstract [J3] N. Ponts*, E. Y. Harris? [J4] N. Ponts, E. Y. Harris, S. Lonardi, K. G. Le Roch, "Nucleosome occupancy at transcription start

Zordan, Victor

65

Willie Harris Address: Soil and Water Science Department  

E-Print Network [OSTI]

.W., W.G. Harris, and G.W. Hurt. 1990. Humods of Florida. p. 63-73. In J. Kimball and R. Yeck (ed, Lincoln, NE. Brown, R.B., K.K. Nielson, J.K. Otton, W.G. Harris, R.J. Kuehl, and C.E. Roestler. 1993.G. Harris. 1994. Quantitative thermal analysis of soil minerals. p. 360-411. In J. Ammonette and L

Jawitz, James W.

66

anim par harri: Topics by E-print Network  

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

Management and Restoration Websites Summary: Ma, Harris, Gao and Ding QUARTERLY PROGRESS REPORT October 012009 - December312009 Recycling its proper management and recycling...

67

4-23-09_Final_Nomination_Testimony_(Harris).pdf  

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

by Scott Blake Harris Before the Senate Committee on Energy and Natural Resources April 23, 2009 Mr. Chairman, Senator Murkowski, distinguished Members of the Committee, thank you...

68

MATHS A VENIR 2009 Michael Harris, November 2009  

E-Print Network [OSTI]

MATHS A VENIR 2009 Michael Harris, November 2009 As a member of the Société Mathématique de France

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

69

MATHS A VENIR 2009 Michael Harris, novembre 2009  

E-Print Network [OSTI]

MATHS A VENIR 2009 Michael Harris, novembre 2009 En tant que membre de la Société Mathématique de

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

70

Towards Automated Story Analysis Using Participatory Harry Halpin  

E-Print Network [OSTI]

Towards Automated Story Analysis Using Participatory Design Harry Halpin Institute University of Edinburgh 2 Buccleuch Place Edinburgh, UK J.Moore@ed.ac.uk Judy Robertson Human Communications

Moore, Johanna D.

71

IV.1. UNITARY GROUPS AND BASE CHANGE Michael Harris  

E-Print Network [OSTI]

IV.1. UNITARY GROUPS AND BASE CHANGE Michael Harris 1. Classification of unitary groups over number-split and we set (G) = 1. Typeset by AMS-TEX 1 #12;2 MICHAEL HARRIS Returning to the real case, we set (U(p, q

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

72

A MATHEMATICAL DREAM AND ITS INTERPRETATION Michael Harris  

E-Print Network [OSTI]

A MATHEMATICAL DREAM AND ITS INTERPRETATION Michael Harris UFR de Math´ematiques Universit´e Paris Universitaire de France. Typeset by AMS-TEX 1 #12;2 MICHAEL HARRIS scheduled as the final chapter of a book

Harris, Michael - Institut de Mathématiques de Jussieu, Université Paris 7

73

Results on Resource-Bounded Measure Harry Buhrman?1  

E-Print Network [OSTI]

Results on Resource-Bounded Measure Harry Buhrman?1 , and Stephen Fenner??2 , and Lance Fortnow???3-measure 0, or even p2-measure 0. ? URL: http://www.cwi.nl/cwi/people/Harry.Buhrman.html. E-mail: buhrman if it can be expressed as the di erence of two sets in NP. The notations R, Q, R+ and Q+ denote the real

Fortnow, Lance

74

Harry Bolson | Photosynthetic Antenna Research Center  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9 HanfordCellHarnessing the2Harris

75

MS6983: Sediment transport processes in coastal environments Instructor: Courtney K. Harris  

E-Print Network [OSTI]

MS698­3: Sediment transport processes in coastal environments Instructor: Courtney K. Harris Spring

Harris, Courtney K.

76

A Cross-Cultural VLSI Design Project David Harris Tayfun Akin  

E-Print Network [OSTI]

A Cross-Cultural VLSI Design Project David Harris Tayfun Akin David_Harris@hmc.edu Tayfun-Cultural VLSI Design Project David Harris Page 2 of 20 Outline o Introduction o Course Structure o Cross-Cultural VLSI Design Project David Harris Page 3 of 20 Introduction Engineering is increasingly done in large

Harris, David Money

77

Some path large deviation results for a branching diffusion Robert Hardy and Simon C. Harris  

E-Print Network [OSTI]

in Git, J.Harris and S.C.Harris [4]. Our approach involves an application of a change of measureSome path large deviation results for a branching diffusion Robert Hardy and Simon C. Harris of Hardy and Harris [5, 7, 6]. Our proof combines simple martingale ideas with applications of Varadhan

Harris, Simon Colin

78

A new formulation of the spine approach to branching Robert Hardy and Simon C. Harris  

E-Print Network [OSTI]

deviations for a continuous­typed branching di#usion in Git, J.W.Harris and S.C.Harris [8] and HardyA new formulation of the spine approach to branching di#usions Robert Hardy and Simon C. Harris in branching di#usions: see, for example, the L p convergence of additive martingales in Hardy and Harris [12

Harris, Simon Colin

79

Large deviations and martingales for a typed branching diffusion, 1 Simon C Harris and David Williams  

E-Print Network [OSTI]

Large deviations and martingales for a typed branching diffusion, 1 by Simon C Harris and David are rather complicated; and these are only sketched here ­ see Harris (1995) and Harris and Williams (1995 for a simpler problem in Champneys, Harris, Toland, Warren and Williams (1995); in the present context

Harris, Simon Colin

80

A new formulation of the spine approach to branching Robert Hardy and Simon C. Harris  

E-Print Network [OSTI]

deviations for a continuous-typed branching diffusion in Git, J.W.Harris and S.C.Harris [8] and HardyA new formulation of the spine approach to branching diffusions Robert Hardy and Simon C. Harris in branching diffusions: see, for example, the Lp convergence of additive martingales in Hardy and Harris [12

Harris, Simon Colin

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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Timeline: A Harry and Johnny Collection  

E-Print Network [OSTI]

AD NAUSEUM PRESS 3613 West Park Road . Cleveland, Ohio 44111 " 154 FIRST MORNING By Jean Chabot (June 197 3) That ~t moment at my doo~, ta.6t rU.g ht, You w~e ~omehow lih.e a. ba.by bhr.d., Lo~t, a.6~d not only o6 c~ but o 6 ~ ha.dow.6....d wome.n. Ca.n you cha.nge. ;the. ha.bm o~ a. U6e.ti.me.? How long be.6o1Le. 4ome. l.a.dy come.& along a.nd 4.te.al4 you 61Lom me.? "This is home now," Harry said again, stubbornly. "You're all the home I want. You and your blue eyes and your golden...

Multiple Contributors

82

LongLived Renaming Made Fast \\Lambda Harry Buhrman  

E-Print Network [OSTI]

Long­Lived Renaming Made Fast \\Lambda Harry Buhrman Centrum voor Wiskunde en Informatica (CWI) P.O. Box 94079, 1090 SB Amsterdam, The Netherlands buhrman@cwi.nl Juan A. Garay IBM T. J. Watson Research

Garay, Juan A.

83

Automatic Analysis of Plot for Story Rewriting Harry Halpin  

E-Print Network [OSTI]

Automatic Analysis of Plot for Story Rewriting Harry Halpin School of Informatics University of Informatics University of Edinburgh 2 Buccleuch Place Edinburgh, EH8 9LW Scotland, UK J.Moore@ed.ac.uk Judy

Moore, Johanna D.

84

Data sheet acquired from Harris Semiconductor Buffered Inputs  

E-Print Network [OSTI]

1 Data sheet acquired from Harris Semiconductor SCHS121D Features · Buffered Inputs · Typical. The suffixes 96 and R denote tape and reel. The suffix T denotes a small-quantity reel of 250. CAUTION

Kretchmar, R. Matthew

85

Data sheet acquired from Harris Semiconductor Four Operating Modes  

E-Print Network [OSTI]

1 Data sheet acquired from Harris Semiconductor SCHS164F Features · Four Operating Modes - Shift Ld PDIP NOTE: When ordering, use the entire part number. The suffixes 96 and R denote tape and reel

Kretchmar, R. Matthew

86

La rfraction des Matriaux : de Descartes Harry Potter  

E-Print Network [OSTI]

deuxième ordre Ions à paires libres R. D. Shannon et al. J. Phys. Chem Ref. Data 31, n° 4, (2002) 931 hal1 La réfraction des Matériaux : de Descartes à Harry Potter Gilles Le Flem ICMCB ( mars 2007)Gilles Descartes à Harry Potter (notes informelles et diapositives du séminaire de 16/03/07) En juin 2006 le groupe

Boyer, Edmond

87

COURTNEY K. HARRIS -NARRATIVE STATEMENT -SEPTEMBER, 2006 Faculty at VIMS address three mandates; "The Virginia Institute of Marine Science ... has a three-  

E-Print Network [OSTI]

COURTNEY K. HARRIS - NARRATIVE STATEMENT - SEPTEMBER, 2006 Faculty at VIMS address three mandates-driven fluid mud transport [Harris et al., 2004; Harris et al., 2005], and identified dominant dispersal [Harris et al., 2003; Harris et al., 2007; Harris and Wiberg, 2002]. Recent research focuses on locations

Harris, Courtney K.

88

Quantum dot device tunable from single to triple dot system  

SciTech Connect (OSTI)

We present a lateral quantum dot device which has a tunable number of quantum dots. Depending on easily tunable gate voltages, one, two or three quantum dots are found. They are investigated in transport and charge detection.

Rogge, M. C.; Haug, R. J. [Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover (Germany); Pierz, K. [Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

2013-12-04T23:59:59.000Z

89

Solid state growth mechanisms for carbon nanotubes Peter J.F. Harris  

E-Print Network [OSTI]

Review Solid state growth mechanisms for carbon nanotubes Peter J.F. Harris Centre for Advanced.09.023 E-mail address: p.j.f.harris@rdg.ac.uk www.elsevier.com/locate/carbon Carbon 4

Harris, Peter J F

90

Mutation Analysis for the Evaluation of Functional Fault Models Qiushuang Zhang and Ian Harris  

E-Print Network [OSTI]

1 Mutation Analysis for the Evaluation of Functional Fault Models Qiushuang Zhang and Ian Harris@ecs.umass.edu, harris@ecs.umass.edu I. INTRODUCTION Design validation by simulation-based techniques is the most common

Harris, Ian G.

91

Very High Radix Scalable Montgomery Multipliers Kyle Kelley and David Harris  

E-Print Network [OSTI]

Very High Radix Scalable Montgomery Multipliers Kyle Kelley and David Harris Harvey Mudd College 301 E. Twelfth St. Claremont, CA 91711 {Kyle_Kelley, David_Harris}@hmc.edu Abstract This paper

Harris, David Money

92

TestosterICs: A Low-Cost Functional Chip Tester David Harris and David Diaz  

E-Print Network [OSTI]

TestosterICs: A Low-Cost Functional Chip Tester David Harris and David Diaz Department of Engineering Harvey Mudd College Claremont, CA 91711 David_Harris@hmc.edu Abstract Students in VLSI design

Harris, David Money

93

Logical Effort of Carry Propagate Adders David Harris and Ivan Sutherland  

E-Print Network [OSTI]

Logical Effort of Carry Propagate Adders David Harris and Ivan Sutherland Harvey Mudd College / Sun Microsystems Laboratories 301 E. Twelfth St. Claremont, CA 91711 David_Harris@hmc.edu / Ivan

Harris, David Money

94

Partial BIST Insertion to Eliminate Data Correlation Qiushuang Zhang and Ian Harris  

E-Print Network [OSTI]

Partial BIST Insertion to Eliminate Data Correlation Qiushuang Zhang and Ian Harris Department@ecs.umass.edu, harris@ecs.umass.edu Abstract A new partial BIST insertion approach based on eliminating data correlation

Harris, Ian G.

95

Real-Time Cloud Rendering Mark J. Harris and Anselmo Lastra  

E-Print Network [OSTI]

Real-Time Cloud Rendering Mark J. Harris and Anselmo Lastra Department of Computer Science for future research in section 5. Figure 1: Realistic clouds in the game "Ozzy's Black Skies". #12;2 Harris

North Carolina at Chapel Hill, University of

96

Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete phenomena  

E-Print Network [OSTI]

Dot Density Maps Dot density maps, or dot maps, portray the geographic distribution of discrete for representing geographic patterns. Dot density maps are particularly useful for understanding global distribution of the mapped phenomenon and comparing relative densities of different regions on the map. Dot

Klippel, Alexander

97

PERCEPTION AND ACTION Psychology 6265 3.0 (W) Laurence Harris  

E-Print Network [OSTI]

PERCEPTION AND ACTION Psychology 6265 3.0 (W) Laurence Harris (KINES 6161/BIOL 5136) Wed 11 system. The list will include (York call numbers included): Harris LR (1994) Visual motion caused) "Vision and Action" (1998) edited by Laurence Harris and Michael Jenkin (CUP) (QP 475 V568 1998) "The

Harris, Laurence R.

98

Fullerene-like models for microporous carbon Peter J. F. Harris  

E-Print Network [OSTI]

REVIEW Fullerene-like models for microporous carbon Peter J. F. Harris Received: 8 June 2012 with Franklin's original models, which were based on cross-linked graphitic P. J. F. Harris (&) Centre, UK e-mail: p.j.f.harris@reading.ac.uk 123 J Mater Sci DOI 10.1007/s10853-012-6788-1 Author's personal

Harris, Peter J F

99

C.K. Harris Page 1 of 19 Full Curriculum Vitae COLLEGE OF WILLIAM AND MARY  

E-Print Network [OSTI]

C.K. Harris Page 1 of 19 Full Curriculum Vitae COLLEGE OF WILLIAM AND MARY Curriculum Vitae Standard Format PERSONAL INFORMATION 1. Name: Courtney Kay Harris Date: February, 2008 Office Address.K. Harris C.V., College of William and Mary Page 2 of 19 1984 Inducted into Tau Beta Pi, the Engineering

Harris, Courtney K.

100

RESEARCH ARTICLE P. M. Jaekl M. R. Jenkin Laurence R. Harris  

E-Print Network [OSTI]

RESEARCH ARTICLE P. M. Jaekl Ã? M. R. Jenkin Ã? Laurence R. Harris Perceiving a stable world during. Further- more, previous attempts to measure such tolerances have P. M. Jaekl Ã? L. R. Harris (&) Department of Psychology, Centre for Vision Research, York University, Toronto, Ontario, M3J 1P3, Canada E-mail: harris@yorku.ca

Harris, Laurence R.

Note: This page contains sample records for the topic "addthis dot harris" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

August 31, 2000 1 EE371: Advanced VLSI Circuit Design David Harris  

E-Print Network [OSTI]

August 31, 2000 1 EE371: Advanced VLSI Circuit Design David Harris Interconnect Delay Modeling Harris Observing that a distributed RC line has the same delay as a lumped RC element with half CWRW ---------------- #12;August 31, 2000 3 EE371: Advanced VLSI Circuit Design David Harris The total

Harris, David Money

102

Understanding 2D critical percolation from Harris to Smirnov and beyond  

E-Print Network [OSTI]

Understanding 2D critical percolation from Harris to Smirnov and beyond Oded Schramm http? Harris 1960 / Kesten 1980: no for d = 2. Hara & Slade 1990: no if d 19. 5 #12;Specialize to critical;Triangular lattice, site percolation (TG): 8 #12;Triangular lattice, site percolation (TG): 9 #12;The Harris

Narasayya, Vivek

103

STATISTICAL CHARACTERISTICS OF HARRIS CORNER DETECTOR Umut Orguner and Fredrik Gustafsson  

E-Print Network [OSTI]

, the Harris operator can be generalized in differ- ent ways, see [6]. Most easily, the sum of R(x, y) for eachSTATISTICAL CHARACTERISTICS OF HARRIS CORNER DETECTOR Umut Orguner and Fredrik Gustafsson,fredrik}@isy.liu.se ABSTRACT In this study, a method is proposed to calculate the bias and mean square error matrix of Harris

Gustafsson, Fredrik

104

THE UNASSISTED VISUAL SYSTEM ON EARTH AND IN SPACE Laurence R. Harris*, Michael Jenkin, Heather Jenkin,  

E-Print Network [OSTI]

1 THE UNASSISTED VISUAL SYSTEM ON EARTH AND IN SPACE Laurence R. Harris*, Michael Jenkin, Heather, Canada *Corresponding author: Laurence Harris Dept. Psychology York University Toronto, ON, Canada M3J 1P3 Email: harris@yorku.ca Phone: 416 736 2100 x 66108 Abstract Chuck Oman has been a guide and mentor

Jenkin, Michael R. M.

105

Invertible coupled KdV and coupled Harry Dym hierarchies  

E-Print Network [OSTI]

In this paper we discuss the conditions under which the coupled KdV and coupled Harry Dym hierarchies possess inverse (negative) parts. We further investigate the structure of nonlocal parts of tensor invariants of these hierarchies, in particular, the nonlocal terms of vector fields, conserved one-forms, recursion operators, Poisson and symplectic operators. We show that the invertible cKdV hierarchies possess Poisson structures that are at most weakly nonlocal while coupled Harry Dym hierarchies have Poisson structures with nonlocalities of the third order.

Maciej Blaszak; Krzysztof Marciniak

2013-02-03T23:59:59.000Z

106

Director Dot Harris Inspires Girls at DigiGirlz Day Event | Department of  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005Department ofDOE

107

Department of Energy's Dot Harris Honored for Blazing Path for Women |  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergy DOEDealing WithDevelopmentReport and7Department of Energy

108

Large deviations and martingales for a typed branching di usion, 1 Simon C Harris and David Williams  

E-Print Network [OSTI]

Large deviations and martingales for a typed branching di#11;usion, 1 by Simon C Harris and David are rather complicated; and these are only sketched here { see Harris (1995) and Harris and Williams (1995 for a simpler problem in Champneys, Harris, Toland, Warren and Williams (1995); in the present context

Harris, Simon Colin

109

Project Recap: Harris 1-Virtual Sight Matthew Zartman  

E-Print Network [OSTI]

Project Recap: Harris 1-Virtual Sight Matthew Zartman Dominique Fantasia Edward Loomis Our project in Rochester, NY and then we discussed the future of the project. With Brian's help we were able to come up with specific guidelines to build our project around. They were: safe to use (specifically low heat

Demirel, Melik C.

110

U. S. DEPARTMENT OF COMMERCE HARRY L HOPKINS, Secretary  

E-Print Network [OSTI]

U. S. DEPARTMENT OF COMMERCE HARRY L HOPKINS, Secretary BUREAU OF FISHERIES CHARLES Eo JACKSON, Actina Conunl..ioner Administrative Report No. 37 FISHERY INDUSTRIES OF THE UNITED STATES 1938 By R. H in Biological Inquiries, 1934. No. 22. Propagation and Distribution of Food Fishes, 1935. No. 2:J. Alaska

111

Alumni Scholarship Recipients 1936 -2006 Barbara Ann Hull Harris  

E-Print Network [OSTI]

'51 Dolores R. Dunne Smith* '51 Gerladine E. Curley Somers '51 Roland Suarez '51 Betty J. JarrellAlumni Scholarship Recipients 1936 - 2006 1 1939 Barbara Ann Hull Harris 1940 Gail Martin* '40 Robert Stabler '40 1942 Edna J. Traghber Kulli Geraldine F. Moise Millikan 1943 John McGill* '43, M

Williams, Gary A.

112

THE THEORY OF SCHUR POLYNOMIALS REVISITED HARRY TAMVAKIS  

E-Print Network [OSTI]

-i ) 1#i,j#n which expresses s # as a polynomial in the complete symmetric functions h r , r # 0. Nearly to be very useful to express (2) in the alternative form (4) s # = # ij (1 -R ij ) h # where the R ijTHE THEORY OF SCHUR POLYNOMIALS REVISITED HARRY TAMVAKIS Abstract. We use Young's raising operators

Tamvakis, Harry

113

TICKS: KEY TO GENERA IN UNITED STATES Harry D. Pratt  

E-Print Network [OSTI]

·38 TICKS: KEY TO GENERA IN UNITED STATES Harry D. Pratt I Capitulum inferior; scutum absent. without definite sutural line. anus, indistinct, or absent. j ~ I lated .... ~ :. / ORNITHODOROS I ment Mouthparts much longer than ..~".'LJv--_, .0",,,,L } }_..., ---'~':r,.-.__.{ Mouthparts as long as basis

114

Better Non-Local Games from Hidden Matching Harry Buhrman  

E-Print Network [OSTI]

Better Non-Local Games from Hidden Matching Harry Buhrman Giannicola Scarpa Ronald de Wolf July 15 variable R, sometimes called the "hidden variable". Its distribution is independent of the inputs and its value r is seen by both Alice and Bob, who can use this to coordinate their behaviour. A classical

de Wolf, Ronald

115

Robust Polynomials and Quantum Algorithms Harry Buhrman1,2  

E-Print Network [OSTI]

Robust Polynomials and Quantum Algorithms Harry Buhrman1,2 , Ilan Newman3 , Hein R¨ohrig4, . . . , ym) is a Boolean function H.B., H.R., and R.d.W. supported in part by the EU fifth framework

de Wolf, Ronald

116

THE THEORY OF SCHUR POLYNOMIALS REVISITED HARRY TAMVAKIS  

E-Print Network [OSTI]

THE THEORY OF SCHUR POLYNOMIALS REVISITED HARRY TAMVAKIS Abstract. We use Young's raising operators the symmetric functions later known as the Schur polynomials s is that of Jacobi [J], where the following two, . . . , xn) = det(xi+n-j i )i,j det(xn-j i )i,j where = (1, . . . , n) is an integer partition with at most

Tamvakis, Harry

117

Joseph M Vesco, Frederick C Harri Sergiu M. Dascalu  

E-Print Network [OSTI]

Semi-Auto for a No Joseph M Vesco, Frederick C Harri Sergiu M. Dascalu Department of Computer of an au omated Analysis Softwa ovel Biochemistry Assay s, Jr., gineering Del R Jackson, Jr., Jos" factor for As this can take long movie, an uld be beneficial he design and solution for r of objects

Dascalu, Sergiu

118

PREFETCHING RESULTS OF WEB SEARCHES Harry Foxwell Daniel A. Menasc  

E-Print Network [OSTI]

services. A user wishes to locate Web sites that match query keywords. A query term or phrase is entered advertising images and text. A search for a common term such as "dinosaur" may return tens of thousandsPREFETCHING RESULTS OF WEB SEARCHES Harry Foxwell Daniel A. Menascé Sun Microsystems Dept

Menascé, Daniel A.

119

Oscillation and blockdiagonalization Uri Elias \\Lambda and Harry Gingold  

E-Print Network [OSTI]

A(x). Next, let r(x) j p(x) 1=n be one fixed branch of the nth root. The shearing transformation Y. Such is, for example, the Euler equation y (n) + Ÿx \\Gamman y = 0: Introducing s(x) j \\Gammar 2 (x)=r 0 (xOscillation and block­diagonalization Uri Elias \\Lambda and Harry Gingold Dept of Mathematics

Gingold, Harry

120

Libert de parole l'Universit Harry Mairson  

E-Print Network [OSTI]

Liberté de parole à l'Université Harry Mairson Faculté des Sciences de Luminy, Université de. Comme vous, j'ai mes propres avis, mais ce que je veux discuter ici, c'est l'importance de garder des j'enseigne depuis 1987. Brandeis a été fondée en 1948 par la communauté juive américaine, un cadeau

Mairson, Harry

Note: This page contains sample records for the topic "addthis dot harris" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Composable Memory Transactions Tim Harris Simon Marlow Simon Peyton Jones Maurice Herlihy  

E-Print Network [OSTI]

Composable Memory Transactions Tim Harris Simon Marlow Simon Peyton Jones Maurice Herlihy Microsoft Research 7 J J Thomson Avenue, Cambridge, UK, CB3 0FB {tharris

Ramsey, Norman

122

E-Print Network 3.0 - aleksandr rjabtikov harri Sample Search...  

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

in Tiflis (Republic... for their generous support. References 1.Fulton, W. , Harris, J.: Representation Source: Martin-Luther-Universitt Halle-Wittenberg, Fachbereich...

123

E-Print Network 3.0 - alexander ryabchikov harri Sample Search...  

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

Harry Enke Dr. Peter Gallagher Dr. Norbert Jakowski Dr. Matthias Hoeft Dr. Alexander... Vogt Dr. Alexander Warmuth Univ. Glasgow Univ. Manchester AIP Univ. Glasgow BAS, Sofia...

124

A quantum dot heterojunction photodetector  

E-Print Network [OSTI]

This thesis presents a new device architecture for photodetectors utilizing colloidally grown quantum dots as the principle photo-active component. We implement a thin film of cadmium selenide (CdSe) quantum dot sensitizers, ...

Arango, Alexi Cosmos, 1975-

2005-01-01T23:59:59.000Z

125

Bounding Bus Delay and Noise Effects of On-Chip Inductance Michael Linderman, David Harris, David Diaz  

E-Print Network [OSTI]

Bounding Bus Delay and Noise Effects of On-Chip Inductance Michael Linderman, David Harris, David Diaz Harvey Mudd College 301 E 12th St. Claremont, CA 91711 mlinderman@stanford.edu, david_harris

Harris, David Money

126

Hartley, Harris & Lester Quantifying uncertainty in the potential distribution of an invasive  

E-Print Network [OSTI]

species: climate and the Argentine ant Stephen Hartley1 , Richard Harris2,3 and Philip J. Lester1 Ecology & Collingwood 1981 Mexico Suarez et al. 2001 New Zealand AMNZ, Charles et al. 2001, Harris & Ward 2003, P.J.; Way, M. J.; Paiva, M. R. (1996) Diversity and structure of ant communities associated with oak, pine

Hartley, Stephen

127

CPM's 20th Anniversary: A Statistical Retrospective Elena Yavorska Harris1  

E-Print Network [OSTI]

CPM's 20th Anniversary: A Statistical Retrospective Elena Yavorska Harris1 , Thierry Lecroq2, Lille and J.-V.Poncelet Lab, Moscow) and INRIA Lille ­ Nord Europe 1 Introduction This year the Annual, pp. 1­11, 2009. c Springer-Verlag Berlin Heidelberg 2009 #12;2 E.Y. Harris et al. Table 1. Locations

Lonardi, Stefano

128

Mercury in the Gulf of Mexico: Sources to receptors$ Reed Harris a,n  

E-Print Network [OSTI]

, Dmitry Dukhovskoy f , Douglas H. Adams h , Krish Vijayaraghavan i , Christopher Holmes j , R. DwightMercury in the Gulf of Mexico: Sources to receptors$ Reed Harris a,n , Curtis Pollman b , William Atkinson k , Tom Myers l , Elsie Sunderland m a Reed Harris Environmental Ltd, 180 Forestwood Drive

Sunderland, Elsie M.

129

THE HODGE STAR OPERATOR ON SCHUBERT FORMS UNNEMANN AND HARRY TAMVAKIS  

E-Print Network [OSTI]

THE HODGE STAR OPERATOR ON SCHUBERT FORMS KLAUS K  UNNEMANN AND HARRY TAMVAKIS Abstract. Let X = G; #1; > #21; k ) is identi#12;ed with its Young diagram of boxes; the weight j#21;j is the number KLAUS K  UNNEMANN AND HARRY TAMVAKIS Figure 1. A hook in the diagram of (6; 6; 5; 4) denote the product

Tamvakis, Harry

130

BUILDING BLOCKS FOR HIERARCHICAL LATENT VARIABLE MODELS Harri Valpola, Tapani Raiko and Juha Karhunen  

E-Print Network [OSTI]

BUILDING BLOCKS FOR HIERARCHICAL LATENT VARIABLE MODELS Harri Valpola, Tapani Raiko and Juha, Espoo, Finland E­mail: {Harri.Valpola, Tapani.Raiko, Juha.Karhunen}@hut.fi URL: http; and the approximation of the true posterior p(#18; j X) by q(#18;). The cost function C used in ensemble learning is C

Karhunen, Juha

131

Complete Sets under NonAdaptive Reductions are Harry Buhrman \\Lambda  

E-Print Network [OSTI]

Complete Sets under Non­Adaptive Reductions are Scarce Harry Buhrman \\Lambda CWI Dieter van: http://www.cwi.nl/cwi/people/Harry.Buhrman.html. y Partially supported by the European Union through for a reducibility 6 p r states that for any set A in EXP, either the class of sets that 6 p r ­reduce to A (called

Amsterdam, University of

132

CSB1 -Computational systems biology and regulatory genomics Supervisors: Harri Lhdesmki and Antti Larjo  

E-Print Network [OSTI]

CSB1 - Computational systems biology and regulatory genomics Supervisors: Harri Lähdesmäki and Antti Larjo Contact information: harri.lahdesmaki@aalto.fi antti.larjo@aalto.fi Job description: Massive and machine learning, programming skills (e.g. R/Python) and interest in epigenetics. Possibility to extend

Kaski, Samuel

133

Modeling Harry's Brook Watershed Alexandra Konings, REU 2006 Tracing the Water  

E-Print Network [OSTI]

for Undergraduates, 2006 #12;Modeling Harry's Brook Watershed Alexandra Konings, REU 2006 Urban Hydrology Water's Storm Water Management Model (SWMM) Solves differential and algebraic equations involved in calculatingModeling Harry's Brook Watershed Alexandra Konings, REU 2006 Tracing the Water: Detailed Modeling

Petta, Jason

134

Harry Greenspun, M.D. Senior Advisor, Health Care Transformation & Technology  

E-Print Network [OSTI]

Harry Greenspun, M.D. Senior Advisor, Health Care Transformation & Technology Deloitte Center for Health Solutions Deloitte LLP Bio highlights Harry Greenspun, M.D., is the Senior Advisor for Health Care a diverse range of clinical and executive roles, and is now responsible for helping Deloitte's health care

Stanford, Kyle

135

Automated volcanic eruption detection using MODIS Robert Wright *, Luke Flynn, Harold Garbeil, Andrew Harris, Eric Pilger  

E-Print Network [OSTI]

Automated volcanic eruption detection using MODIS Robert Wright *, Luke Flynn, Harold Garbeil, Harris, & Wright, 2001). Initial research was concerned with the use of high-spatial-, low.g. Flynn Mouginis-Mark, & Horton, 1994; Wright, Flynn, & Harris, 2001), lava domes (e.g. Oppenheimer

Wright, Robert

136

Who will save the tokamak Harry Potter, Arnold Schwarzenegger,  

E-Print Network [OSTI]

) 21 ln 2 1 J B B M B J B M J B c c c R B B R J µ µ much current for ignition 12 1/2 3/2 2 1/2 1/2 1/2 0 0 1 1 (1 ) ( ) 2.44 0.055 6.8 ^B r p n T p J R B nWho will save the tokamak ­ Harry Potter, Arnold Schwarzenegger, Shaquille O'Neal or Donald Trump

137

Harris County, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net JumpStrategy |HammerfestHardscrabble WindHarris

138

A spine proof of a lower bound for a typed branching Robert Hardy and Simon C. Harris  

E-Print Network [OSTI]

of an important and difficult path large-deviations lower bound for a typed branching diffusion as found in Git, J.HarrisA spine proof of a lower bound for a typed branching diffusion Robert Hardy and Simon C. Harris March 8, 2004 Abstract We follow the spine approach as found in Hardy and Harris [6, 8, 7] to define new

Harris, Simon Colin

139

Harris Corners in the Real World: A Principled Selection Criterion for Interest Points Based on Ecological Statistics  

E-Print Network [OSTI]

Harris Corners in the Real World: A Principled Selection Criterion for Interest Points Based, is the Har- ris corner detector. The impetus for the selection criterion for Harris corners, proposed of structure, a selection threshold for Harris corners is proposed based on a definition of optimality

140

Building trees based on aggregation efficiency in sensor networks Albert F. Harris III a,*, Robin Kravets b  

E-Print Network [OSTI]

-mail addresses: harris@dei.unipd.it (A.F. Harris III), rhk@cs.uiuc.edu (R. Kravets), indy@cs.uiuc.edu (I. GuptaBuilding trees based on aggregation efficiency in sensor networks Albert F. Harris III a,*, Robin 2007 Elsevier B.V. All rights reserved. doi:10.1016/j.adhoc.2007.02.021 * Corresponding author. E

Kravets, Robin

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141

Ligand Rearrangement Reactions of Cr(CO)6 in Alcohol Solutions: Experiment and Theory Jennifer E. Shanoski, Elizabeth A. Glascoe, and Charles B. Harris*  

E-Print Network [OSTI]

. Shanoski, Elizabeth A. Glascoe, and Charles B. Harris* Department of Chemistry, UniVersity of California

Harris, Charles B.

142

Dynamics of an Excess Electron at Metal/Polar Interfaces Preston T. Snee, Sean Garrett-Roe, and Charles B. Harris*  

E-Print Network [OSTI]

-Roe, and Charles B. Harris* Department of Chemistry, UniVersity of California, Berkeley, California 94720

Harris, Charles B.

143

Nontoxic quantum dot research improves solar cells  

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

Nontoxic quantum dot research improves solar cells Nontoxic quantum dot research improves solar cells Solar cells made with low-cost, nontoxic copper-based quantum dots can achieve...

144

Connecticut Weatherization Project Improves Lives, Receives National...  

Energy Savers [EERE]

Lives, Receives National Recognition May 6, 2014 - 12:24pm Addthis Donna Hawkins Technology Transfer Specialist, Weatherization Assistance Program Harris Walker Communications...

145

E-Print Network 3.0 - acyrthosiphon pisum harris Sample Search...  

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

in response to alarm pheromone... of the pea aphid, Acyrthosiphon pisum (Harris). Can. J. Zool. 56: 103-108. Rose, U.S.R., Lewis, W... aphids, Acyrthosiphon ... Source: Mondor,...

146

AFROAM 293N. Voices of New Africa House, Part I Instructor: Evelyn Harris  

E-Print Network [OSTI]

AFROAM 293N. Voices of New Africa House, Part I Instructor: Evelyn Harris Tuesdays 5:00-7:00 p, jazz, gospel, R&B, soul, funk and folk music. Additionally, we will explore compositions from many

Massachusetts at Amherst, University of

147

Robert J. Gordon Stanley G. Harris Professor in the Social Sciences and Professor of Economics,  

E-Print Network [OSTI]

Robert J. Gordon Stanley G. Harris Professor in the Social Sciences and Professor of Economics, Northwestern University Robert J. Gordon did his undergraduate work at Harvard and then attended Oxford

Bustamante, Fabián E.

148

Increasing Kolmogorov Complexity Harry Buhrman # Lance Fortnow + Ilan Newman # Nikolai Vereshchagin  

E-Print Network [OSTI]

Increasing Kolmogorov Complexity Harry Buhrman # Lance Fortnow + Ilan Newman # Nikolai Vereshchagin # . Theorem 2 (Harper). Let J # 2 n . Take all the strings with less than l ones and take J

Fortnow, Lance

149

This book is dedicated to Harry Blum, who started it all.  

E-Print Network [OSTI]

This book is dedicated to Harry Blum, who started it all. #12;#12;Preface The last half century has," C. N. R., Pozzuoli, Naples, Italy. Ali Shokoufandeh Department of Computer Science, Drexel

Dudek, Gregory

150

Department of XXXX Engineering Fall 2011 Harris2-Harnessing Human Energy  

E-Print Network [OSTI]

conferences and site visit to gather data. · Collect customer needs and engineering requirements. · MakePENNSTATE Department of XXXX Engineering Fall 2011 Harris2- Harnessing Human Energy Overview

Demirel, Melik C.

151

Harris County- Green Building Tax Abatement for New Commercial Construction (Texas)  

Broader source: Energy.gov [DOE]

In 2008, the Harris County Commissioners Court adopted guidelines for partial tax abatements for new construction of commercial LEED-certified buildings. The tax abatement was renewed in 2009, and...

152

SPECTROPHOTOMETRIC DETERMINATION OF Fe IN DRINKING WATER Background Reading: Harris, 7th  

E-Print Network [OSTI]

SPECTROPHOTOMETRIC DETERMINATION OF Fe IN DRINKING WATER Background Reading: Harris, 7th ed., Chap contaminants in drinking water can be determined spectrophotometrically, including iron. Although iron the iron content of drinking water to

Weston, Ken

153

QUANTUM ALGORITHMS FOR ELEMENT DISTINCTNESS HARRY BUHRMAN, CHRISTOPH DURR, MARK HEILIGMAN, PETER HYER,  

E-Print Network [OSTI]

QUANTUM ALGORITHMS FOR ELEMENT DISTINCTNESS HARRY BUHRMAN, CHRISTOPH D¨URR, MARK HEILIGMAN§, PETER 6111, Fort George G. Meade, MD 20755, USA. Email: mheilig@zombie.ncsc.mil. ¶Dept. of Comp. Sci

Fondements et Applications, Université Paris 7

154

Global Warming: Connecting the Dots  

E-Print Network [OSTI]

Global Warming: Connecting the Dots from Causes to Solutions* Jim Hansen 26 February 2007 National://www.columbia.edu/~jeh1/worldwatch_nov2006.pdf) 5. Communicating dangers and opportunities in global warming, Amer-16, 2006. (http://pubs.giss.nasa.gov/docs/2006/2006_Hansen.pdf) 8. Global warming: Connecting the dots from

Hansen, James E.

155

A Fundamental Issue of Naive Bayes Harry Zhang 1 and Charles X. Ling 2  

E-Print Network [OSTI]

A Fundamental Issue of Naive Bayes Harry Zhang 1 and Charles X. Ling 2 1 Faculty of Computer#12;er, or simply naive Bayes (NB). g(E) = p(C = +) p(C = ) n Y i=1 p(a i jC = +) p(a i jC = ) : (1) #12; 2 Harry Zhang and Charles X. Ling. It is obvious that the conditional independence assumption

Ling, Charles X.

156

A comparison study of gravid and under house CO2 mosquito traps in Harris County, Texas  

E-Print Network [OSTI]

outweighs the additional materials or labor required for their use in a successful surveillance program. v DEDICATION I dedicate this project to my husband, Mike and my family for all their love, and unwavering support and patience. Without... Traps in Harris County, Texas. (May 2008) Stephanie Lyn White, B.S.; B.S., Texas A&M University Chair of Advisory Committee: Dr. Michael P. Ward Harris County Mosquito Control Division (HCMCD) is responsible for surveillance of mosquito species...

White, Stephanie Lyn

2008-10-10T23:59:59.000Z

157

Generating Pseudo-Random Permutations and Maximum Flow IBM Almaden Research Center, 650 Harry Road, San Jose, CA 95120 ,USA  

E-Print Network [OSTI]

of length r if there are i1 j1 r Center, 650 Harry Road, San Jose, CA 95120 ,USA and Sackler Faculty of Exact Sciences, Tel Aviv

Shamir, Ron

158

Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman, Emily Kosten, Dennis Callahan, Pierpaolo Spinelli, Carissa Eisler, Matthew  

E-Print Network [OSTI]

Nanophotonic design principles for ultrahigh efficiency photovoltaics Harry Atwater, Albert Polman for ultrahigh efficiency photovoltaics Harry Atwater, 1,2 Albert Polman,2,1 , Emily Kosten, Dennis Callahan1 can enable ultrahigh efficiencies previously considered to be out of reach. Photovoltaic technology

Atwater, Harry

159

CONTROLLED VARIABLES IN SENTENCE INTONATION* Carole E. Gelfer,t Katherine S. Harris,t and Thomas Haer  

E-Print Network [OSTI]

CONTROLLED VARIABLES IN SENTENCE INTONATION* Carole E. Gelfer,t Katherine S. Harris,t and Thomas realization (Atkinson, 1973; Collier, 1975; Gelfer, Harris, Collier, & Baer, 1985; Maeda, 1976). Unfortunately characteristics of utterances (Klatt, Stevens, & Mead, 1968). For example, because of the reduced airflow

160

All inorganic colloidal quantum dot LEDs  

E-Print Network [OSTI]

This thesis presents the first colloidal quantum dot light emitting devices (QD-LEDs) with metal oxide charge transport layers. Colloidally synthesized quantum dots (QDs) have shown promise as the active material in ...

Wood, Vanessa Claire

2007-01-01T23:59:59.000Z

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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

Toolbox Safety Talk DOT Materials of Trade  

E-Print Network [OSTI]

: Corrosive Battery acid, Descaler Class 9: Miscellaneous Lithium batteries, ORM-D #12;Toolbox Safety Talk DOT

Pawlowski, Wojtek

162

Enhanced EP halftones with hexagonal dot packing  

E-Print Network [OSTI]

Enhanced EP halftones with hexagonal dot packing Tomasz J. Cholewo, Steve Weed, Brian Cooper advantages for electropho- tographic (EP) printing over conventional dot placement on a square grid [1] reported that hexagonal dot packing could have some unique benefits for EP printing. These were

Cholewo, Tomasz

163

Double superexchange in quantum dot mesomaterials  

E-Print Network [OSTI]

of defects,2 and resist oxidation better.3 In addition, these small dots use their slice of the solar. An idea that has been explored for larger dots is to encapsulate them within an inorganic amorphous matrix yet to be achieved. A second approach is to encapsulate the dots within an organic polymer blend.12

Wu, Zhigang

164

Penn Engineering Alumni Society Report (May 2009) Submitted by Harris G. Romanoff, President ('98)  

E-Print Network [OSTI]

Participated in mock interview sessions for students, coordinated by Engineering Career Services Annual EASPenn Engineering Alumni Society Report (May 2009) Submitted by Harris G. Romanoff, President ('98) We had a very exciting and event filled calendar this past year in the Engineering Alumni Society

Plotkin, Joshua B.

165

Pollution Prevention Through Productivity Improvement Harry W. Edwards, Michael F. Kostrzewa, and Cynthia K. Ketzenberger  

E-Print Network [OSTI]

1 Pollution Prevention Through Productivity Improvement 99-151 Harry W. Edwards, Michael F that recommended productivity improvement practices can also prevent formation of wastes and polluting emissions. A total of 61 productivity improvement recommendations were made, 14 of which provide pollution prevention

166

Outline of a proof theory of parametricity Harry G. Mairson \\Lambda  

E-Print Network [OSTI]

Outline of a proof theory of parametricity Harry G. Mairson \\Lambda Department of Computer Science that the function satisfies.''[Wad89] He gives the example of a function r 2 8A:A \\Lambda ! A \\Lambda , where , we must have the equality map XY f (r X `) = r Y (map XY f `): (1) Intuitive justifications

Mairson, Harry

167

LIANG GOU () 650 Harry Rd. B2-249, San Jose, CA 95123, USA  

E-Print Network [OSTI]

LIANG GOU () 650 Harry Rd. B2-249, San Jose, CA 95123, USA Office: 1-408-927-1152 / Cell: 1, China B.M., Information Management& Information System, 2004 PUBLICATIONS Refereed Journal Papers [J.2 TVCG/InfoVis'11, Vol. 17, No. 12, pp. 2449-2458. [J.1] Gou, L., Zhang, S. K., Wang, J. & Zhang, X. L

Giles, C. Lee

168

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman  

E-Print Network [OSTI]

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman CWI Richard Cleve University algorithm with an auxiliary input r, which is uniformly distributed over some underlying sample space. In this case, for any x 2 f0;1gn, f(x) = 1 iff (9r 2 S)(A(x;r) = 1). Grover's quantum search algorithm [15

de Wolf, Ronald

169

Improved bounds and algorithms for graph cuts and network reliability David G. Harris  

E-Print Network [OSTI]

Improved bounds and algorithms for graph cuts and network reliability David G. Harris Aravind, the graphs we deal with will be multi-graphs with no self-loops. We define R(p), the reliability polyno- mial there is no currently known algorithm for estimating R(p), the complementary probability U(p) = 1 - R(p), which we

Srinivasan, Aravind

170

Experimental testing of the variable rotated elastic parabolic Harry J. Simpsona)  

E-Print Network [OSTI]

Experimental testing of the variable rotated elastic parabolic equation Harry J. Simpsona) Physical Street, Golden, Colorado 80401 Raymond J. Soukup Acoustics Division Code 7144, Naval Research Laboratory and the ability of the model to produce benchmark-quality agreement with experimental data [J. M. Collis et al., J

171

QUANTUM ALGORITHMS FOR ELEMENT DISTINCTNESS HARRY BUHRMAN, CHRISTOPH DURR, MARK HEILIGMAN, PETER HYER,  

E-Print Network [OSTI]

QUANTUM ALGORITHMS FOR ELEMENT DISTINCTNESS HARRY BUHRMAN, CHRISTOPH D¨URR, MARK HEILIGMAN§, PETER] which is 2-to-1, i.e. i [N]!j [N], i = j : f(i) = f(j) output i, j [N] with i = j and f(i) = f(j

Magniez, Frédéric

172

Random Walk on an Arbitrary Set By Simon C. Harris, Robin Sibson, and  

E-Print Network [OSTI]

Random Walk on an Arbitrary Set By Simon C. Harris, Robin Sibson, and David Williams School be a countably infinite set of points in R, and suppose that I has no points of accumulation and that its convex hull is the whole of R. It will be convenient to index I as {ui : i Z}, with ui

Harris, Simon Colin

173

SIGNAL RECONSTRUCTION FROM SPIKING NEURON MODELS Dazhi Wei and John G. Harris  

E-Print Network [OSTI]

SIGNAL RECONSTRUCTION FROM SPIKING NEURON MODELS Dazhi Wei and John G. Harris Computational Neuro of delayed impulse functions [3, 4]. x(t) = h(t) j wj(t - sj) = j wjh(t - sj) (2) where wj are scalar the signal recovery problem is simplified as how to calculate the appropriate weights. If sj = j

Harris, John G.

174

Branching Brownian Motion with branching at the origin Sergey Bocharov, Simon C. Harris  

E-Print Network [OSTI]

Branching Brownian Motion with branching at the origin Sergey Bocharov, Simon C. Harris University. Dawson and K. Fleischmann [4], K. Fleischmann and J.F. Le Gall [9] or J. Engl¨ander and D. Turaev [7 result is the Strong Law of Large Numbers for the branching system. Theorem 1.7 (SLLN). Let f : R R

Harris, Simon Colin

175

THE MOSER-TARDOS FRAMEWORK WITH PARTIAL RESAMPLING DAVID G. HARRIS1  

E-Print Network [OSTI]

THE MOSER-TARDOS FRAMEWORK WITH PARTIAL RESAMPLING DAVID G. HARRIS1 AND ARAVIND SRINIVASAN2, . . . , Em, each Ei being completely determined by a subset {j Si : Xj} of independent random variables X1 {j Si : Xj}. We develop a partial resampling approach motivated by this, which we simply call

Srinivasan, Aravind

176

o Fences roun Fi JAMES L. MURPHY AND HARRY E. SCHIMKE  

E-Print Network [OSTI]

clover (Chamaebatia foliosa), and manzanita brush r..Q.t9J~...tgRholus viscida). There were twoo Fences roun Fi JAMES L. MURPHY AND HARRY E. SCHIMKE ABSTRACT: Five meshes (1/8 to 1 inch) of 16-breaks - -retard them until fir e crews a r r i v ed, costs of installing and maintaining fences might be justified

Standiford, Richard B.

177

Hollow structures with bilayer graphene walls Peter J.F. Harris *  

E-Print Network [OSTI]

Hollow structures with bilayer graphene walls Peter J.F. Harris * Centre for Advanced Microscopy, J.J. Thomson Physical Laboratory, University of Reading, Whiteknights, Reading RG6 6AF, UK A R T I C L E I N F A B S T R A C T The formation of three-dimensional shell-like structures with bilayer graphene walls

Harris, Peter J F

178

Two-Phase Fluid-Solid Flow Name of Supervisor: Dr D. Harris  

E-Print Network [OSTI]

in the fluid and the dispersion may be maintained by a fluid flow. There is a mechanical interaction between of discrete particles, (2) as a fluid, (3) as a dense gas and using the statistical mechanics of granular flowTwo-Phase Fluid-Solid Flow Name of Supervisor: Dr D. Harris Email: david

Sidorov, Nikita

179

Water Conservation in the Home Janie L. Harris, M.Ed., CRS  

E-Print Network [OSTI]

Water Conservation in the Home Janie L. Harris, M.Ed., CRS Extension Housing and Environment't Let the Faucet Run Dry Water Conservation in the Home Page 1Family and Consumer Sciences · Texas A&M AgriLife Extension Service A typical family uses 60­80 gallons of water per person per day. That's 240

180

Fractal dimension unscreened angles measured for radial viscous fingering Olivier Praud Harry Swinney  

E-Print Network [OSTI]

Fractal dimension unscreened angles measured for radial viscous fingering Olivier Praud Harry, USA #Received November 2004; published July 2005# have examined fractal patterns formed injection experiments. fractal dimension D 0 of pattern large r / 1.70±0.02. Further, generalized dimensions D pattern

Texas at Austin. University of

Note: This page contains sample records for the topic "addthis dot harris" 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

A dynamical definition of quasibound molecular clusters Sarah A. Harris and Ian J. Forda)  

E-Print Network [OSTI]

A dynamical definition of quasibound molecular clusters Sarah A. Harris and Ian J. Forda of a quasibound cluster are identified through a retrospective dynamical definition. The trajectory of a molecular is satisfied, however, at the instant that the energy of the departing molecule in the center of mass frame

Ford, Ian

182

Aircraft Accident Prevention: Loss-of-Control Analysis Harry G. Kwatny  

E-Print Network [OSTI]

Aircraft Accident Prevention: Loss-of-Control Analysis Harry G. Kwatny , Jean-Etienne T. Dongmo NASA Langley Research Center, MS 161, Hampton, VA, 23681. The majority of fatal aircraft accidents that during the ten year period 1997-2006, 59% of fatal aircraft accidents were associated with Loss

Kwatny, Harry G.

183

Modeling of the quantum dot filling and the dark current of quantum dot infrared photodetectors  

SciTech Connect (OSTI)

A generalized drift-diffusion model for the calculation of both the quantum dot filling profile and the dark current of quantum dot infrared photodetectors is proposed. The confined electrons inside the quantum dots produce a space-charge potential barrier between the two contacts, which controls the quantum dot filling and limits the dark current in the device. The results of the model reasonably agree with a published experimental work. It is found that increasing either the doping level or the temperature results in an exponential increase of the dark current. The quantum dot filling turns out to be nonuniform, with a dot near the contacts containing more electrons than one in the middle of the device where the dot occupation approximately equals the number of doping atoms per dot, which means that quantum dots away from contacts will be nearly unoccupied if the active region is undoped.

Ameen, Tarek A.; El-Batawy, Yasser M.; Abouelsaood, A. A. [Department of Engineering Mathematics and Physics, Faculty of Engineering, Cairo University, Giza (Egypt)

2014-02-14T23:59:59.000Z

184

A Quantitative Comparison of Parallel Computation Models Ben H,H. Juurlink Harry A.G. Wijshoff  

E-Print Network [OSTI]

A Quantitative Comparison of Parallel Computation Models Ben H,H. Juurlink Harry A.G. Wijshoff High, requires specific permission sad/or fee. SPM96, Padua, Italy Q 199(j ACM ().89791+@-&96j~ ..$3

Moreno Maza, Marc

185

Report on the Software Environments Technical Research Review Jerey J. Blevins, E. James Whitehead, Jr., and Harry E. Yessayan  

E-Print Network [OSTI]

, Jr., and Harry E. Yessayan organized by: Leon J. Osterweil and Richard N. Taylor Irvine Research UnitReport on the Software Environments Technical Research Review Jerey J. Blevins, E. James Whitehead

Whitehead, James

186

Quantum Dot Light Emitting Diode  

SciTech Connect (OSTI)

The project objective is to create low cost coatable inorganic light emitting diodes, composed of quantum dot emitters and inorganic nanoparticles, which have the potential for efficiencies equivalent to that of LEDs and OLEDs and lifetime, brightness, and environmental stability between that of LEDs and OLEDs. At the end of the project the Recipient shall gain an understanding of the device physics and properties of Quantum-Dot LEDs (QD-LEDs), have reliable and accurate nanocrystal synthesis routines, and have formed green-yellow emitting QD-LEDs with a device efficiency greater than 3 lumens/W, a brightness greater than 400 cd/m2, and a device operational lifetime of more than 1000 hours. Thus the aim of the project is to break the current cost-efficiency paradigm by creating novel low cost inorganic LEDs composed of inorganic nanoparticles.

Keith Kahen

2008-07-31T23:59:59.000Z

187

Quantum Dot Light Emitting Diode  

SciTech Connect (OSTI)

The project objective is to create low cost coatable inorganic light emitting diodes, composed of quantum dot emitters and inorganic nanoparticles, which have the potential for efficiencies equivalent to that of LEDs and OLEDs and lifetime, brightness, and environmental stability between that of LEDs and OLEDs. At the end of the project the Recipient shall gain an understanding of the device physics and properties of Quantum-Dot LEDs (QD-LEDs), have reliable and accurate nanocrystal synthesis routines, and have formed green-yellow emitting QD-LEDs with a device efficiency greater than 3 lumens/W, a brightness greater than 400 cd/m{sup 2}, and a device operational lifetime of more than 1000 hours. Thus the aim of the project is to break the current cost-efficiency paradigm by creating novel low cost inorganic LEDs composed of inorganic nanoparticles.

Kahen, Keith

2008-07-31T23:59:59.000Z

188

Dynamics of Quantum Dot Photonic Crystal Lasers  

E-Print Network [OSTI]

Quantum dot photonic crystal membrane lasers were fabricated and the large signal modulation characteristics were studied. We find that the modulation characteristics of quantum dot lasers can be significantly improved using cavities with large spontaneous emission coupling factor. Our experiments show, and simulations confirm, that the modulation rate is limited by the rate of carrier capture into the dots to around 30GHz in our present system.

Bryan Ellis; Ilya Fushman; Dirk Englund; Bingyang Zhang; Yoshihisa Yamamoto; Jelena Vuckovic

2007-03-07T23:59:59.000Z

189

Open Nominations Call - Energy Department Employees, Join the...  

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

Nominations Call - Energy Department Employees, Join the Women @ Energy Series Dot Harris Dot Harris Director, Office of Economic Impact and Diversity In honor of Women's...

190

Celebrating National Small Business Week, and Our FY 2011 Small...  

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

program. Past awards from the Department of Energy Small Business Awards program. Dot Harris Dot Harris Director, Office of Economic Impact and Diversity What does an...

191

Secretary Chu Congratulates FY 2011 Small Business Award Winners...  

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

the Energy Department headquarters in Washington, DC. | Energy Department photo. Dot Harris Dot Harris Director, Office of Economic Impact and Diversity "You are limited only by...

192

A Lower Bound for Quantum Search of an Ordered List Harry Buhrman Ronald de Wolfy  

E-Print Network [OSTI]

A Lower Bound for Quantum Search of an Ordered List Harry Buhrman Ronald de Wolfy June 21, 1999 of Amsterdam. E-mail: rdewolf@cwi.nl. 1 #12;A qubit is a superposition 0j0i+ 1j1i of both values of a classical bit. Similarly, a register of m qubits is a superposition j i of all 2m classical bitstrings of m bits

de Wolf, Ronald

193

Random Walk on an Arbitrary Set By Simon C. Harris, Robin Sibson, and  

E-Print Network [OSTI]

j 6=i q i;j (u j u i ) = 0 for every i: (1:1) Write ` i and r i for the gaps to the leftRandom Walk on an Arbitrary Set By Simon C. Harris, Robin Sibson, and David Williams School be a countably in#12;nite set of points in R, and suppose that I has no points of accumulation and that its

Harris, Simon Colin

194

One Bit of Advice Harry Buhrman 1 , Richard Chang 2? , and Lance Fortnow 3  

E-Print Network [OSTI]

One Bit of Advice Harry Buhrman 1 , Richard Chang 2? , and Lance Fortnow 3 1 CWI & University function. Then, we de#12;ne L=f = fx j hx; f(jxj)i 2 Lg. For a complexity class C and a class of functions F , C=F = fL=f j L 2 C; f 2 Fg. Thus, NP/poly denotes the class of languages recognized by NP

Fortnow, Lance

195

A simple proof of a theorem of Statman Harry G. Mairson \\Lambda  

E-Print Network [OSTI]

A simple proof of a theorem of Statman Harry G. Mairson \\Lambda Cambridge Research Laboratory ; x 2 ; : : : ; x k g be a set of â??­terms, each of first­order type ff; then L j â??c : ff ! ø ! ø and successor on Church numerals, the length of a list of terms of type ff can be computed by length j â??L : (ff

Mairson, Harry

196

The Harris Foundation Estudiante Formulario de Solicitud 1 Informacin de Aplicacin de estudiante 2014  

E-Print Network [OSTI]

2014 Acampe Información: El campamento de ciencia de ExxonMobil Bernard Harris (EMBHSSC) en el verano, o 8 grado en el Otoño de 2014. El campamento promueve la ciencia, la tecnología, la ingeniería, y tienen interés en la ciencia y matemáticas y por lo menos un promedio "B" en la ciencia y matemáticas son

Zhou, Chongwu

197

The Harris Foundation Student Application Form 1 Informacin de Aplicacin de estudiante 2013  

E-Print Network [OSTI]

Acampe Información: El campamento de ciencia de ExxonMobil Bernard Harris (EMBHSSC) en el verano es que entran al 6, 7, o 8 grado en el Otoño de 2013. El campamento promueve la ciencia, la tecnología 7 grado que tienen interés en la ciencia y matemáticas y por lo menos un promedio "B" en la ciencia

Rohs, Remo

198

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics  

E-Print Network [OSTI]

cell efficiency milestones. Quantum dot photovoltaics is inphotovoltaics provide the potential to create high-efficiencycell efficiency milestones. Quantum dot photovoltaics is in

Padilla, Derek

2013-01-01T23:59:59.000Z

199

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics  

E-Print Network [OSTI]

4.4 Photovoltaics in Practice . . . . . . . . . . . . . .milestones. Quantum dot photovoltaics is in the bottom-rightIN QUANTUM DOT PHOTOVOLTAICS A dissertation submitted in

Padilla, Derek

2013-01-01T23:59:59.000Z

200

Thick-shell nanocrystal quantum dots  

DOE Patents [OSTI]

Colloidal nanocrystal quantum dots comprising an inner core having an average diameter of at least 1.5 nm and an outer shell, where said outer shell comprises multiple monolayers, wherein at least 30% of the quantum dots have an on-time fraction of 0.80 or greater under continuous excitation conditions for a period of time of at least 10 minutes.

Hollingsworth, Jennifer A. (Los Alamos, NM); Chen, Yongfen (Eugene, OR); Klimov, Victor I. (Los Alamos, NM); Htoon, Han (Los Alamos, NM); Vela, Javier (Los Alamos, NM)

2011-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Phonon Mediated Off-Resonant Quantum Dot-Cavity Coupling  

E-Print Network [OSTI]

A theoretical model for the phonon-mediated off-resonant coupling between a quantum dot and a cavity, under resonant excitation of the quantum dot, is presented. We show that the coupling is caused by electron-phonon interaction in the quantum dot and is enhanced by the cavity. We analyze recently observed resonant quantum dot spectroscopic data by our theoretical model.

Arka Majumdar; Yiyang Gong; Erik D. Kim; Jelena Vuckovic

2010-12-14T23:59:59.000Z

202

Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells  

E-Print Network [OSTI]

to Third-Generation Photovoltaic Solar Cells A. J. Nozik,*,, M. C. Beard, J. M. Luther, M. Law,§ R. J. Applications: Quantum Dot Solar Cells 6884 6.1. Quantum Dot Solar Cell Configurations 6885 6.1.1. Photoelectrodes Composed of Quantum Dot Arrays 6885 6.1.2. Quantum Dot-Sensitized Nanocrystalline TiO2 Solar Cells

George, Steven C.

203

Federal Efficiency Program Wins GreenGov Dream Team Award | Department...  

Energy Savers [EERE]

Team Award February 12, 2015 - 11:53am Addthis Partnered with the Department of Transportation (DOT), EERE's Federal Energy Management Program (FEMP) won the GreenGov...

204

J. Phys. A: Math. Gen. 22 (1989) 241-255. Printed in the UK Derivation and implicit solution of the Harry Dym equation  

E-Print Network [OSTI]

the Harry Dym (HD) equation r, = r r3x that has non-linearity and dispersion coupled togetherJ. Phys. A: Math. Gen. 22 (1989) 241-255. Printed in the UK Derivation and implicit solution of the Harry Dym equation and its connections with the Korteweg-de Vries equation W Hereman?, P P Banerjee

Hereman, Willy A.M.

205

Psycholinguistic Studies of Entrenchment Harris, C.L. 1994b. Coarse coding and the lexicon. In C. Fuchs and B. Victorri,  

E-Print Network [OSTI]

Psycholinguistic Studies of Entrenchment Harris, C.L. 1994b. Coarse coding and the lexicon. In C. Fuchs and B. Victorri, Eds. Continuity in linguistic semantics. Amsterdam: John Benjamins. Harris, C review. Hodgson, J.M. 1991. Informational constraints on pre-lexical priming. Lan- guage and Cognitive

Edelman, Shimon

206

Towards an ISO standard for dialogue act annotation Harry Bunt*, Jan Alexandersson, Jean Carletta, Jae-Woong Choe, Alex Chengyu Fang,  

E-Print Network [OSTI]

Towards an ISO standard for dialogue act annotation Harry Bunt*, Jan Alexandersson, Jean Carletta University, The Netherlands harry.bunt@uvt.nl Abstract This paper describes an ISO project developing to what was said and done earlier in the dialogue. The project, registered as ISO 24617-2 Semantic

Paris-Sud XI, Université de

207

Lovell, J. E. J. 1997, PhD thesis, University of Tasmania Marshall, H. L., Harris, D. E., Grimes, J. P., Drake, J. J., Frus-  

E-Print Network [OSTI]

References Lovell, J. E. J. 1997, PhD thesis, University of Tasmania Marshall, H. L., Harris, D. EJ, 549, L167 Marshall, H. L., Miller, B. P., Davis, D. S., Perlman, E. S., Wise, M., Canizares, C. R., & Harris, D. E. 2002, ApJ, 564, 683 Marshall, H. L., Schwartz, D. A., Worrall, D. M., Birkinshaw, M

Gelbord, Jonathan

208

The Chemical Composition of Soils of Cameron, Coleman, Dallas, Erath, Harris, Reeves, Rockwall and Tarrant Counties.  

E-Print Network [OSTI]

- proves the capacity of soils to hold a favorable amount of water, so as better to resist drouth. It aids in giving a fine crumbly structure to clay soils and enables them to break up into a good conclition of tilth under the actio~ of cultivating... the relative deficiencies of plant food in the soil. The corn possibility is also a convenient way of comparing amounts of various plant foods in the same soil. For example, with the Lake Charles clay loam of Harris county, the corn possibility for total...

Fraps, G. S. (George Stronach)

1931-01-01T23:59:59.000Z

209

Cardiovascular effects of rapid infusion of crystalloid solution in the hypovolemic cat / by Harry William Boothe, Jr  

E-Print Network [OSTI]

CARDIOVASCULAR EFFECTS OF RAPID INFUSION OF CRYSTALLOID SOLUTION IN THE HYPOVOLEMIC CAT A Thes1s by HARRY WILLIAM SOOTHE, JR. Subm1tted to the Graduate College of Texas A&M University in part1al fulfillment of the requirement for the degree... of MASTER OF SCIENCE August 1982 l1ajor Subject: Veterinary Physiology and Pharmacology CARDIOVASCULAR EFFECTS OF RAPID INFUSION OF CRYSTALLOID SOLUTION IN THE HYPOVOLEMIC CAT A Thes1s by HARRY WILLIAM BOOTHE, JR. Approved as to sty1e and content...

Boothe, Harry William

1982-01-01T23:59:59.000Z

210

Photodetectors based on colloidal quantum dots  

E-Print Network [OSTI]

Inspired by recent work demonstrating photocurrent enhancement in quantum-dot (QD) solids via post-deposition chemical annealing and by recent successes incorporating single monolayers of QDs in light-emitting devices ...

Oertel, David C. (David Charles)

2007-01-01T23:59:59.000Z

211

Synthesis and characterization of infrared quantum dots  

E-Print Network [OSTI]

This thesis focuses on the development of synthetic methods to create application ready quantum dots (QDs) in the infrared for biological imaging and optoelectronic devices. I concentrated primarily on controlling the size ...

Harris, Daniel Kelly

2014-01-01T23:59:59.000Z

212

Mn/DOT County Road Safety Plans  

E-Print Network [OSTI]

Roads Program !! Minnesota Central Safety Funds !! Foster safety culture among county stakeholders 41 Mn/DOT County Road Safety Plans CTS Annual Research Conference April 27 & 28, 2010 Howard Preston & Objectives !! Project Overview !! Schedule, Participating Counties, Approach !! Safety Emphasis Areas

Minnesota, University of

213

An environmental impact assessment of quantum dot photovoltaics (QDPV) from raw material acquisition through use  

E-Print Network [OSTI]

An environmental impact assessment of quantum dot photovoltaics (QDPV) from raw material: Life cycle assessment Quantum dots Nanophotovoltaics Quantum dot photovoltaic modules Solar energy Assessment (LCA) of a proposed type of nanophotovoltaic, quantum dot photovoltaic (QDPV) module. The LCA

Illinois at Chicago, University of

214

Bayes Blocks: A Python Toolbox for Variational Bayesian Antti Honkela, Markus Harva, Tapani Raiko, Harri Valpola, and Juha Karhunen  

E-Print Network [OSTI]

, Tapani Raiko, Harri Valpola, and Juha Karhunen October 26, 2006 Bayes Blocks [1] is a software library as a graphical model. References [1] M. Harva, T. Raiko, A. Honkela, H. Valpola, and J. Karhunen. Bayes Blocks, H. Valpola, M. Harva, and J. Karhunen. Building blocks for variational Bayesian learning of latent

Honkela, Antti

215

Using Normal Flow for Detection and Tracking of Limbs in Color Images Zoran Duric, Fayin Li, Yan Sun, Harry Wechsler  

E-Print Network [OSTI]

Sun, Harry Wechsler Department of Computer Science George Mason University Fairfax, VA 22030 {zduric and be the unit vectors in the x and y directions, re- spectively; r = ix + y is the projected displacement field at the point r = xi + y. If we choose a unit direc- tion vector nr = nxi + ny at the image point r and call

Duric, Zoran

216

A review of "Sick Economies: Drama, Mercantilism, and Disease in Shakespeare’s England." by Jonathan Gil Harris  

E-Print Network [OSTI]

of Venice, Harris says, ?In what might seem like an unholy marriage of the Eurovision Song Contest and The Love Connection, Portia is both the M.C. and the prize?? This book offers great insight into the Renaissance dis- courses of the body, the emergence...

Byron Nelson

2005-01-01T23:59:59.000Z

217

An Analysis of Facebook Photo Caching Qi Huang, Ken Birman, Robbert van Renesse, Wyatt Lloyd, Sanjeev Kumar, Harry C. Li  

E-Print Network [OSTI]

An Analysis of Facebook Photo Caching Qi Huang, Ken Birman, Robbert van Renesse, Wyatt Lloyd, Sanjeev Kumar, Harry C. Li Cornell University, Princeton University, Facebook Inc. Abstract This paper examines the workload of Facebook's photo- serving stack and the effectiveness of the many layers

Keinan, Alon

218

came to the museum after his death.The Galapagos finches,collected on the Beagle voyage by Harry Fuller,  

E-Print Network [OSTI]

came to the museum after his death.The Galapagos finches,collected on the Beagle voyage by Harry Fuller, came to the museum by a convoluted route,the eight birds he collected first being given or sold to Dr Armstrong of the Haslar Museum, part of the Royal Naval Hospital in Portsmouth. On the closure

219

Resonant Generation of Internal Waves on a Model Continental Slope H. P. Zhang, B. King, and Harry L. Swinney  

E-Print Network [OSTI]

Resonant Generation of Internal Waves on a Model Continental Slope H. P. Zhang, B. King, and Harry wave generation in a laboratory model of oscillating tidal flow on a continental margin. Waves are found to be generated only in a near-critical region where the slope of the bottom topography matches

Texas at Austin. University of

220

Harmonic generation by reflecting internal waves Bruce Rodenborn, D. Kiefer, H. P. Zhang, and Harry L. Swinney  

E-Print Network [OSTI]

Harmonic generation by reflecting internal waves Bruce Rodenborn, D. Kiefer, H. P. Zhang, and Harry 2011 The generation of internal gravity waves by tidal flow over topography is an important oceanic­Stokes equations to determine the value of the topographic slope that gives the most intense generation of second

Texas at Austin. University of

Note: This page contains sample records for the topic "addthis dot harris" 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.


221

Nanostructured architectures for colloidal quantum dot solar cells  

E-Print Network [OSTI]

This thesis introduces a novel ordered bulk heterojunction architecture for colloidal quantum dot (QD) solar cells. Quantum dots are solution-processed nanocrystals whose tunable bandgap energies make them a promising ...

Jean, Joel, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

222

Fast quantum dot single photon source triggered at telecommunications wavelength  

E-Print Network [OSTI]

We demonstrate a quantum dot single photon source at 900 nm triggered at 300 MHz by a continuous wave telecommunications wavelength laser followed by an electro-optic modulator. The quantum dot is excited by on-chip-generated second harmonic radiation, resonantly enhanced by a GaAs photonic crystal cavity surrounding the InAs quantum dot. Our result suggests a path toward the realization of telecommunications-wavelength-compatible quantum dot single photon sources with speeds exceeding 1 GHz.

Kelley Rivoire; Sonia Buckley; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-12-20T23:59:59.000Z

223

DOE Extends Comment Period on Notice of Inquiry Under the Energy...  

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

- 10:17am Addthis Today, in response to a formal request, General Counsel Scott Blake Harris approved a second and final extension of the public comment period to November 30,...

224

DOE Extends Comment Period on Notice of Inquiry Under the Energy...  

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

- 4:33pm Addthis Today, in response to a formal request, General Counsel Scott Blake Harris approved a 30-day extension of the public comment period on DOE's Notice of Inquiry...

225

A hybrid double-dot in silicon  

SciTech Connect (OSTI)

We report electrical measurements of a single arsenic dopant atom in the tunnel barrier of a silicon single-electron transistor (SET). In addition to performing the electrical characterisation of the individual dopants, we study the series electrical transport through the dopant and SET. We measure the bias triangles of this hybrid double-dot and show that we can tune the electrostatic coupling between the two sub-systems. Additionally, we measured SET in which an additional plunger gate allows the reduction of the electron number in the SET down to the few-electron regime where the dot presents well-defined spin configurations. Finally, we discuss the challenges of operating a dopant-dot hybrid system in the few-electron regime.

Gonzalez-Zalba, M. F.; Heiss, D.; Ferguson, A. J. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge (United Kingdom)

2013-12-04T23:59:59.000Z

226

Engineered Quantum Dot Single Photon Sources  

E-Print Network [OSTI]

Fast, high efficiency, and low error single photon sources are required for implementation of a number of quantum information processing applications. The fastest triggered single photon sources to date have been demonstrated using epitaxially grown semiconductor quantum dots (QDs), which can be conveniently integrated with optical microcavities. Recent advances in QD technology, including demonstrations of high temperature and telecommunications wavelength single photon emission, have made QD single photon sources more practical. Here we discuss the applications of single photon sources and their various requirements, before reviewing the progress made on a quantum dot platform in meeting these requirements.

Sonia Buckley; Kelley Rivoire; Jelena Vuckovic

2012-10-03T23:59:59.000Z

227

Bilayer graphene quantum dot defined by topgates  

SciTech Connect (OSTI)

We investigate the application of nanoscale topgates on exfoliated bilayer graphene to define quantum dot devices. At temperatures below 500 mK, the conductance underneath the grounded gates is suppressed, which we attribute to nearest neighbour hopping and strain-induced piezoelectric fields. The gate-layout can thus be used to define resistive regions by tuning into the corresponding temperature range. We use this method to define a quantum dot structure in bilayer graphene showing Coulomb blockade oscillations consistent with the gate layout.

Müller, André; Kaestner, Bernd; Hohls, Frank; Weimann, Thomas; Pierz, Klaus; Schumacher, Hans W., E-mail: hans.w.schumacher@ptb.de [Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig (Germany)

2014-06-21T23:59:59.000Z

228

Harry Potter, ange ou dmon ?, ds. I. Smadja et P. Bruno, P.U.F., octobre 2007, pp. 140-149 Nicole BIAGIOLI  

E-Print Network [OSTI]

les élèves lecteurs d'Harry Potter. Résumé La série de J. K. Rowling est un parfait exemple desHarry Potter, ange ou démon ?, éds. I. Smadja et P. Bruno, P.U.F., octobre 2007, pp. 140-149 1, Université de Nice-Sophia Antipolis, U.F.R. Lettres, Arts et Sciences humaines, 98 Bd. Edouard Herriot, B

Boyer, Edmond

229

Synthesis of CdSe quantum dots for quantum dot sensitized solar cell  

SciTech Connect (OSTI)

CdSe Quantum Dots (QDs) of size 0.85 nm were synthesized using chemical route. ZnO based Quantum Dot Sensitized Solar Cell (QDSSC) was fabricated using CdSe QDs as sensitizer. The Pre-synthesized QDs were found to be successfully adsorbed on front ZnO electrode and had potential to replace organic dyes in Dye Sensitized Solar Cells (DSSCs). The efficiency of QDSSC was obtained to be 2.06 % at AM 1.5.

Singh, Neetu, E-mail: singh.neetu1985@gmail.com; Kapoor, Avinashi [Department of Electronic Science, University of Delhi South Campus, New Delhi-110 021 (India); Kumar, Vinod [Department of Physics, University of the Free State, Bloemfontein, ZA9300 (South Africa); Mehra, R. M. [School of Engineering and Technology, Sharda University, Greater Noida-201 306, U.P. (India)

2014-04-24T23:59:59.000Z

230

Enhanced Joule Heating in Umbral Dots  

E-Print Network [OSTI]

We present a study of magnetic profiles of umbral dots (UDs) and its consequences on the Joule heating mechanisms. Hamedivafa (2003) studied Joule heating using vertical component of magnetic field. In this paper UDs magnetic profile has been investigated including the new azimuthal component of magnetic field which might explain the relatively larger enhancement of Joule heating causing more brightness near circumference of UD.

Chandan Joshi; Lokesh Bharti; S. N. A. Jaaffrey

2007-05-08T23:59:59.000Z

231

Mn/DOT's Project Peer Review  

E-Print Network [OSTI]

and sustain this culture #12;Project Management #12;Recent National Work in Transportation Project ManagementMn/DOT's Project Management Peer Review Creating a Project Management Culture 2010 CTS Research a Peer Review? Why Project Management? ·Improve project delivery performance ­ on time, on budget (an

Minnesota, University of

232

Spin dynamics characterization in magnetic dots  

E-Print Network [OSTI]

J= 0.1 meV Frequency (JS) SDF J=0.6 meV Fig. 2. (Colorfrom diagonalization (SDF: J=1 eV) Frequency spectrum fromMagnon DOS for a circular dot SDF: J=0.6 meV N=1600 N=400 N=

Mozaffari, Mohammad Reza; Esfarjani, Keivan

2007-01-01T23:59:59.000Z

233

An Jnteractive impulse response extraction system Harry W. Li,a) Michael J. Dallabetta, and Jake Baker  

E-Print Network [OSTI]

An Jnteractive impulse response extraction system Harry W. Li,a) Michael J. Dallabetta, and Jake{t}. It can be shown that the correlator output is alE-mail: hli@uidaho.edu where the term rPni{ r- A} is the cross correlation of fn2{t} and fi{t}, and rPnn{ r} is the cross correlation of fnl(t} and f~2{t}. If r

Baker, R. Jacob

234

Controlling quantum dot energies using submonolayer bandstructure engineering  

SciTech Connect (OSTI)

We demonstrate control of energy states in epitaxially-grown quantum dot structures formed by stacked submonolayer InAs depositions via engineering of the internal bandstructure of the dots. Transmission electron microscopy of the stacked sub-monolayer regions shows compositional inhomogeneity, indicative of the presence of quantum dots. The quantum dot ground state is manipulated not only by the number of deposited InAs layers, but also by control of the thickness and material composition of the spacing layers between submonolayer InAs depositions. In this manner, we demonstrate the ability to shift the quantum dot ground state energy at 77?K from 1.38?eV to 1.88?eV. The results presented offer a potential avenue towards enhanced control of dot energies for a variety of optoelectronic applications.

Yu, L.; Law, S.; Wasserman, D. [Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign, Urbana, Illinois 61801 (United States); Jung, D.; Lee, M. L. [Department of Electrical Engineering, Yale University, New Haven, Connecticut 06520 (United States); Shen, J.; Cha, J. J. [Department of Mechanical Engineering and Materials Science and Energy Science Institute, Yale University, New Haven, Connecticut 06520 (United States)

2014-08-25T23:59:59.000Z

235

Elastic fields of quantum dots in subsurface layers A. E. Romanov  

E-Print Network [OSTI]

to vertical stacking of dots provided that the thickness of the intervening layer ``spacer layer'' is in the order or thinner than the lateral dimensions of the dot.4 It is now clear that dot ordering is driven

Beltz, Glenn E.

236

Deposition of colloidal quantum dots by microcontact printing for LED display technology  

E-Print Network [OSTI]

This thesis demonstrates a new deposition method of colloidal quantum dots within a quantum dot organic light-emitting diode (QD-LED). A monolayer of quantum dots is microcontact printed as small as 20 ,Lm lines as well ...

Kim, LeeAnn

2006-01-01T23:59:59.000Z

237

Separability and dynamical symmetry of Quantum Dots  

SciTech Connect (OSTI)

The separability and Runge–Lenz-type dynamical symmetry of the internal dynamics of certain two-electron Quantum Dots, found by Simonovi? et al. (2003), are traced back to that of the perturbed Kepler problem. A large class of axially symmetric perturbing potentials which allow for separation in parabolic coordinates can easily be found. Apart from the 2:1 anisotropic harmonic trapping potential considered in Simonovi? and Nazmitdinov (2013), they include a constant electric field parallel to the magnetic field (Stark effect), the ring-shaped Hartmann potential, etc. The harmonic case is studied in detail. -- Highlights: • The separability of Quantum Dots is derived from that of the perturbed Kepler problem. • Harmonic perturbation with 2:1 anisotropy is separable in parabolic coordinates. • The system has a conserved Runge–Lenz type quantity.

Zhang, P.-M., E-mail: zhpm@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Zou, L.-P., E-mail: zoulp@impcas.ac.cn [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Horvathy, P.A., E-mail: horvathy@lmpt.univ-tours.fr [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou (China); Laboratoire de Mathématiques et de Physique Théorique, Tours University (France); Gibbons, G.W., E-mail: G.W.Gibbons@damtp.cam.ac.uk [Department of Applied Mathematics and Theoretical Physics, Cambridge University, Cambridge (United Kingdom)

2014-02-15T23:59:59.000Z

238

Local Quantum Dot Tuning on Photonic Crystal Chips  

E-Print Network [OSTI]

Quantum networks based on InGaAs quantum dots embedded in photonic crystal devices rely on QDs being in resonance with each other and with the cavities they are embedded in. We developed a new technique based on temperature tuning to spectrally align different quantum dots located on the same chip. The technique allows for up to 1.8nm reversible on-chip quantum dot tuning.

Andrei Faraon; Dirk Englund; Ilya Fushman; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

2007-03-28T23:59:59.000Z

239

How Analysts Cognitively “Connect the Dots”  

SciTech Connect (OSTI)

As analysts attempt to make sense of a collection of documents, such as intelligence analysis reports, they may wish to “connect the dots” between pieces of information that may initially seem unrelated. This process of synthesizing information between information requires users to make connections between pairs of documents, creating a conceptual story. We conducted a user study to analyze the process by which users connect pairs of documents and how they spatially arrange information. Users created conceptual stories that connected the dots using organizational strategies that ranged in complexity. We propose taxonomies for cognitive connections and physical structures used when trying to “connect the dots” between two documents. We compared the user-created stories with a data-mining algorithm that constructs chains of documents using co-occurrence metrics. Using the insight gained into the storytelling process, we offer design considerations for the existing data mining algorithm and corresponding tools to combine the power of data mining and the complex cognitive processing of analysts.

Bradel, Lauren; Self, Jessica S.; Endert, Alexander; Hossain, Shahriar M.; North, Chris; Ramakrishnan, Naren

2013-06-04T23:59:59.000Z

240

Solution-Processed Solar Cells using Colloidal Quantum Dots ...  

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

physical understanding, and performance-oriented engineering of colloidal quantum dot solar cells and light sensors. Bio: Ted Sargent received the B.Sc.Eng. (Engineering...

Note: This page contains sample records for the topic "addthis dot harris" 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

Microfluidic self-assembly of quantum dot compound micelles.  

E-Print Network [OSTI]

??This thesis is devoted to the development of microfluidic processes for the controlled self-assembly of quantum dot compound micelles (QDCMs). Microfluidic processes are developed to… (more)

Schabas, Greg

2007-01-01T23:59:59.000Z

242

Quantum Dot Tracers for Use in Engineered Geothermal  

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

tracers, colloidal quantum dots, that offer great promise for use in characterizing fracture networks in EGS reservoirs. Since the wavelength of fluorescence (color) of these...

243

Quantum Dot Tracers for Use in Engineered Geothermal Systems...  

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

nanoparticles(quantum dots)that offer great promise for use in characterizing fracture networks in EGS reservoirs. tracersrosequantumdot.pdf More Documents &...

244

assembled quantum dots: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

245

asymmetry quantum dots: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

246

Temperature-Dependent Electron Transport in Quantum Dot Photovoltaics.  

E-Print Network [OSTI]

??Quantum dot photovoltaics have attracted much interest from researchers in recent years. They have the potential to address both costs and efficiencies of solar cells… (more)

Padilla, Derek

2013-01-01T23:59:59.000Z

247

E-Print Network 3.0 - atom quantum dot Sample Search Results  

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

third-generation solar cell efficiencies. Tiny quantum dots... the first all-quantum-dot photovoltaic cell, which was based on lead sulfide and demonstrated reasonable... quantum...

248

Enhanced performance of quantum dot solar cells based on type II quantum dots  

SciTech Connect (OSTI)

The characteristics of quantum dot solar cells (QDSCs) based on type II QDs are investigated theoretically. Based on a drift-diffusion model, we obtained a much higher open circuit voltage (V{sub oc}) as well as conversion efficiency in a type II QDSC, compared to type I QDSCs. The improved V{sub oc} and efficiency are mainly attributed to the much longer Auger recombination lifetime in type II QDs. Moreover, the influence of the carrier lifetime on devices' performance is discussed and clarified. In addition, an explicit criterion to determine the role of quantum dots in solar cells is put forward.

Xu, Feng; Yang, Xiao-Guang; Luo, Shuai; Lv, Zun-Ren; Yang, Tao, E-mail: tyang@semi.ac.cn [Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China)

2014-10-07T23:59:59.000Z

249

Minnesota Guidestar www.dot.state.mn.us/guidestar  

E-Print Network [OSTI]

.dot.state.mn.us/guidestar What is ITS? · Application of technology to improve the safety and efficiency of the transportation system. #12;Minnesota Guidestar www.dot.state.mn.us/guidestar What is ITS? · Traffic Management ­ Signal Systems ­ Ramp Meters · Emergency Response ­ Mobile Data Terminals ­ 911 Dispatch ­ RF Data Networks

Minnesota, University of

250

State DOT: PENNSYLVANIA State Report Questions on NDT Testing  

E-Print Network [OSTI]

capacity surveys, management of load restrictions, fatigue tests and compaction control. On concreteState DOT: PENNSYLVANIA State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? PennDOT performs Falling Weight

251

State DOT: Missouri State Report Questions on NDT Testing  

E-Print Network [OSTI]

State DOT: Missouri State Report Questions on NDT Testing 1. What NDT testing methods for concrete maturity meter MoDOT has utilized the rebound hammer to evaluate in-place concrete when cylinder testing materials, concrete pavements, and overlays are you trying? a) Maturity Method b) Rebound Hammer c) Cover

252

Temperature Dependence of Single CdSe/ZnS Quantum Dots Luminescence Lifetime  

E-Print Network [OSTI]

, such as quantum dots (QDs), has grown dramatically. These semiconductor QDs bridge the gap between single

Paris-Sud XI, Université de

253

Harris, P. R., and J. S. Dranoff, "A Study of Perfectly Mixed Photochemical Reactors," AlChE J., 11, 497 (1965).  

E-Print Network [OSTI]

Harris, P. R., and J. S. Dranoff, "A Study of Perfectly Mixed Photochemical Reactors," AlChE J., 11, 497 (1965). Hancil, V., V. Schorr, and J. M. Smith, "Radiation Efficiency of Photoreactors,"ibid., 18, 43 (1972). Hill, F. B., and R. M. Felder, "Effects of Mixing on Chain Reactions in Isothermal

Liu, Y. A.

254

Magnetic Exchange Coupling in Actinide-Containing Molecules Jeffrey D. Rinehart, T. David Harris, Stosh A. Kozimor, Bart M. Bartlett, and Jeffrey R. Long*  

E-Print Network [OSTI]

Harris, Stosh A. Kozimor, Bart M. Bartlett, and Jeffrey R. Long* Department of Chemistry, Uni magnetic exchange interactions, including multiuranium, uranium-lanthanide, uranium-transition metal, and uranium-radical species. Interpretation of the magnetic susceptibility data for compounds of this type

255

Linewidth broadening of a quantum dot coupled to an off-resonant cavity  

E-Print Network [OSTI]

We study the coupling between a photonic crystal cavity and an off-resonant quantum dot under resonant excitation of the cavity or the quantum dot. Linewidths of the quantum dot and the cavity as a function of the excitation laser power are measured. We show that the linewidth of the quantum dot, measured by observing the cavity emission, is significantly broadened compared to the theoretical estimate. This indicates additional incoherent coupling between the quantum dot and the cavity.

Arka Majumdar; Andrei Faraon; Erik Kim; Dirk Englund; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-03-11T23:59:59.000Z

256

Coherent excitation of a strongly coupled quantum dot - cavity system  

E-Print Network [OSTI]

We have studied the coherent excitation of a strongly coupled QD/photonic crystal cavity system. Time-resolved reflectivity measurements show the vacuum Rabi oscillation of the dot in the cavity. Next, we considered the resonant driving of a cavity-detuned dot, which efficiently populates the cavity mode. This cavity-controlled read-out channel allows high-resolution single quantum dot spectroscopy. Autocorrelation measurements on the cavity mode show antibunching and suggest the use of the resonantly driven QD/cavity system as an on-demand source of single photons with potentially near-unity indistinguishability.

Dirk Englund; Arka Majumdar; Andrei Faraon; Mitsuru Toishi; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

2009-02-19T23:59:59.000Z

257

Blue Dots Team Transits Working Group Review  

E-Print Network [OSTI]

Transiting planet systems offer an unique opportunity to observationally constrain proposed models of the interiors (radius, composition) and atmospheres (chemistry, dynamics) of extrasolar planets. The spectacular successes of ground-based transit surveys (more than 60 transiting systems known to-date) and the host of multi-wavelength, spectro-photometric follow-up studies, carried out in particular by HST and Spitzer, have paved the way to the next generation of transit search projects, which are currently ongoing (CoRoT, Kepler), or planned. The possibility of detecting and characterizing transiting Earth-sized planets in the habitable zone of their parent stars appears tantalizingly close. In this contribution we briefly review the power of the transit technique for characterization of extrasolar planets, summarize the state of the art of both ground-based and space-borne transit search programs, and illustrate how the science of planetary transits fits within the Blue Dots perspective.

Sozzetti, A; Alonso, R; Blank, D L; Catala, C; Deeg, H; Grenfell, J L; Hellier, C; Latham, D W; Minniti, D; Pont, F; Rauer, H

2009-01-01T23:59:59.000Z

258

Celebrating our work with Native American Students in STEM During...  

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

in AIREI gather at the one-week Energy Summer Institute, held at NREL last summer. Dot Harris Dot Harris Director, Office of Economic Impact and Diversity Throughout November, we...

259

Hybrid organic/quantum dot thin film structures and devices  

E-Print Network [OSTI]

Organic light emitting diodes have undergone rapid advancement over the course of the past decade. Similarly, quantum dot synthesis has progressed to the point that room temperature highly efficient photoluminescence can ...

Coe-Sullivan, Seth (Seth Alexander)

2005-01-01T23:59:59.000Z

260

Self-Sustaining Dynamical Nuclear Polarization Oscillations in Quantum Dots  

E-Print Network [OSTI]

Early experiments on spin-blockaded double quantum dots revealed robust, large-amplitude current oscillations in the presence of a static (dc) source-drain bias. Despite experimental evidence implicating dynamical nuclear ...

Rudner, M. S.

Note: This page contains sample records for the topic "addthis dot harris" 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

Optoelectronic and photonic control of single quantum dots  

E-Print Network [OSTI]

Optoelectronic and photonic control of single quantum dots Samuel James Dewhurst Wolfson College University of Cambridge A thesis submitted for the degree of Doctor of Philosophy April 2010 Declaration This thesis describes work carried out...

Dewhurst, Samuel James

2010-10-12T23:59:59.000Z

262

Application of Mn/DOT Utility Coordination Process to Local Agencies Based on national best practices, the Minnesota Department of Transportation (Mn/DOT) Utility  

E-Print Network [OSTI]

Application of Mn/DOT Utility Coordination Process to Local Agencies Based on national best practices, the Minnesota Department of Transportation (Mn/DOT) Utility Coordination Process incorporates Processes There are projects where the full process is not necessary. The Mn/DOT Utilities Manual provides

Minnesota, University of

263

Scalable quantum computer architecture with coupled donor-quantum dot qubits  

DOE Patents [OSTI]

A quantum bit computing architecture includes a plurality of single spin memory donor atoms embedded in a semiconductor layer, a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, wherein a first voltage applied across at least one pair of the aligned quantum dot and donor atom controls a donor-quantum dot coupling. A method of performing quantum computing in a scalable architecture quantum computing apparatus includes arranging a pattern of single spin memory donor atoms in a semiconductor layer, forming a plurality of quantum dots arranged with the semiconductor layer and aligned with the donor atoms, applying a first voltage across at least one aligned pair of a quantum dot and donor atom to control a donor-quantum dot coupling, and applying a second voltage between one or more quantum dots to control a Heisenberg exchange J coupling between quantum dots and to cause transport of a single spin polarized electron between quantum dots.

Schenkel, Thomas; Lo, Cheuk Chi; Weis, Christoph; Lyon, Stephen; Tyryshkin, Alexei; Bokor, Jeffrey

2014-08-26T23:59:59.000Z

264

Fluorescence from a quantum dot and metallic nanosphere hybrid system  

SciTech Connect (OSTI)

We present energy absorption and interference in a quantum dot-metallic nanosphere system embedded on a dielectric substrate. A control field is applied to induce dipole moments in the nanosphere and the quantum dot, and a probe field is applied to monitor absorption. Dipole moments in the quantum dot or the metal nanosphere are induced, both by the external fields and by each other's dipole fields. Thus, in addition to direct polarization, the metal nanosphere and the quantum dot will sense one another via the dipole-dipole interaction. The density matrix method was used to show that the absorption spectrum can be split from one peak to two peaks by the control field, and this can also be done by placing the metal sphere close to the quantum dot. When the two are extremely close together, a self-interaction in the quantum dot produces an asymmetry in the absorption peaks. In addition, the fluorescence efficiency can be quenched by the addition of a metal nanosphere. This hybrid system could be used to create ultra-fast switching and sensing nanodevices.

Schindel, Daniel G. [Department of Mathematics and Statistics, University of Winnipeg, 515 Portage Avenue, Winnipeg, MB, R3B 2E9 (Canada); Singh, Mahi R. [Department of Physics and Astronomy, University of Western Ontario, 1151 Richmond Street, London, ON, N6A 3K7 (Canada)

2014-03-31T23:59:59.000Z

265

THE FABRICATION AND ANALYSIS OF QUANTUM-DOT THIN FILM LIGHT EMITTING DIODES FOR USE IN DISPLAYS TECHNOLOGIES.  

E-Print Network [OSTI]

??The quantum dot has many applications, one of which is the light emitting diode. Quantum dot light emitting diodes were fabricated for their use in… (more)

Pickering, Shawn

2011-01-01T23:59:59.000Z

266

Fluorescent of C-dot composite thin films and its properties  

SciTech Connect (OSTI)

In the present work, we report the preparation of a fluorescent carbon nanodots (C-dots) epoxy composite thin films on a glass substrate. C-dots were prepared directly by a simple hydrothermal method using citric acid as a carbon source. The C-dots solutions were mixed with a transparent epoxy resin to form C-dot epoxy composite. Furthermore, the composite precursor was deposited on the glass substrate using a spin coating method in order to fabricate C-dot epoxy composite thin film. The transmittance intensity of C-dot composite film reached up to 90% in the visible light spectra. Using Swanopoel method, the film thickness of fabricated C-dot composite film was determined at about 1.45 ?m, a value lies in a typical range needed for a wide range application. Thus, the C-dot composite film is promising in broadening applications in various fields such as energy conversion, optoelectronics, and display technology.

Mahen, Ea Cahya Septia, E-mail: ferry@fi.itb.ac.id; Nuryadin, Bebeh W., E-mail: ferry@fi.itb.ac.id; Iskandar, Ferry, E-mail: ferry@fi.itb.ac.id; Abdullah, Mikrajuddin, E-mail: ferry@fi.itb.ac.id; Khairurrijal, E-mail: ferry@fi.itb.ac.id [Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung, 40132 (Indonesia)

2014-02-24T23:59:59.000Z

267

Manipulating surface diffusion and elastic interactions to obtain quantum dot multilayer arrangements over different length scales  

SciTech Connect (OSTI)

An innovative multilayer growth of InAs quantum dots on GaAs(100) is demonstrated to lead to self-aggregation of correlated quantum dot chains over mesoscopic distances. The fundamental idea is that at critical growth conditions is possible to drive the dot nucleation only at precise locations corresponding to the local minima of the Indium chemical potential. Differently from the known dot multilayers, where nucleation of new dots on top of the buried ones is driven by the surface strain originating from the dots below, here the spatial correlations and nucleation of additional dots are mostly dictated by a self-engineering of the surface occurring during the growth, close to the critical conditions for dot formation under the fixed oblique direction of the incoming As flux, that drives the In surface diffusion.

Placidi, E., E-mail: ernesto.placidi@ism.cnr.it; Arciprete, F. [Istituto di Struttura della Materia, CNR, Via del Fosso del Cavaliere 100, 00133 Rome (Italy); Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Latini, V.; Latini, S.; Patella, F. [Università di Roma “Tor Vergata”, Dipartimento di Fisica, via della Ricerca Scientifica 1, 00133 Rome (Italy); Magri, R. [Dipartimento di Scienze Fisiche, Informatiche e Matematiche (FIM), Università di Modena e Reggio Emilia, and Centro S3 CNR-Istituto Nanoscienze, Via Campi 213/A, 4100 Modena (Italy); Scuderi, M.; Nicotra, G. [CNR-IMM, Strada VIII, 5, 95121 Catania (Italy)

2014-09-15T23:59:59.000Z

268

Fabrication and optimization of light emitting devices with core-shell quantum dots  

E-Print Network [OSTI]

Quantum dot light emitting devices (QD-LEDs) are promising options for the next generation of solid state lighting, color displays, and other optoelectronic applications. Overcoating quantum dots (QDs) -- semiconducting ...

Song, Katherine Wei

2013-01-01T23:59:59.000Z

269

Two-path transport measurements with bias dependence on a triple quantum dot  

SciTech Connect (OSTI)

We present transport measurements on a lateral triple quantum dot with a star-like geometry and one lead attached to each dot. The system is studied in a regime close to established quadruple points, where all three dots are in resonance. The specific sample structure allows us to apply two different bias voltages to the two source leads and thus to study the influence between the paths with serial double dots.

Kotzian, M.; Rogge, M. C.; Haug, R. J. [Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstr. 2, 30167 Hannover (Germany)

2013-12-04T23:59:59.000Z

270

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a  

E-Print Network [OSTI]

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a Jiayi Shao, Majeed M. Hayat demonstration of a GaAs based avalanche photodiode APD operating in the midwave infrared region 3­5 m . In the device, called the quantum dot avalanche photodiode, an intersubband quantum dots-in-a-well detector

Hayat, Majeed M.

271

SU(4) Kondo Effect in Carbon Nanotube Quantum Dots: Kondo Effect without Charge Quantization  

E-Print Network [OSTI]

.J. Liang, M. Bockrath, and H. Park, PRL (2002) M. R. Buitelaar et al., PRL (2002) Quantization along length nanotube M.S. Choi, R. Lopez and R. Aguado, PRL (2005) 4 degenerate levels in the dot are coupled one for 1 electron: Double dots, dots with symmetries: D. Boese et al., PRB (2002) L. Borda et al., PRL

Finkelstein, Gleb

272

Self-organized formation of quantum dots of a material on a substrate  

DOE Patents [OSTI]

Systems and methods are described for fabricating arrays of quantum dots. A method for making a quantum dot device, includes: forming clusters of atoms on a substrate; and charging the clusters of atoms such that the clusters of atoms repel one another. The systems and methods provide advantages because the quantum dots can be ordered with regard to spacing and/or size.

Zhang, Zhenyu (232 Long Bow Rd., Knoxville, TN 37922); Wendelken, John F. (925 Suwanee Rd., Knoxville, TN 37923); Chang, Ming-Che (F4-2, No. 178 Sec 5 Minsheng East Rd., Taipei, TW); Pai, Woei Wu (1F, No. 17, Alley 11, Lane 202, Ming Chyuan Rd., Pan Chou City, Taipei County, TW)

2001-01-01T23:59:59.000Z

273

Tunable few-electron double quantum dots and Klein tunnelling in ultraclean carbon nanotubes  

E-Print Network [OSTI]

Tunable few-electron double quantum dots and Klein tunnelling in ultraclean carbon nanotubes G. A. Steele*, G. Gotz and L. P. Kouwenhoven Quantum dots defined in carbon nanotubes are a platform for both with highly tunable barriers1 , but disorder has prevented tunable nanotube- based quantum-dot devices from

274

FISH and Chips: Automation of Fluorescent Dot Counting in Interphase Cell Nuclei  

E-Print Network [OSTI]

) in each cell nucleus. This system works with two fluorescent dyes, one for the DNA hybridization dotsFISH and Chips: Automation of Fluorescent Dot Counting in Interphase Cell Nuclei Hans Netten,1 Ian abnormalities in inter- phase cell nuclei. This process is called dot counting. To estimate the distribution

van Vliet, Lucas J.

275

Temperature-Tuning of Near-Infrared Monodisperse Quantum Dot Solids at  

E-Print Network [OSTI]

include solar energy conversion as well as quantum communication. In quantum dot systems, the dot sizes photovoltaics, capturing the infrared spectrum, and also exhibiting possible multi- exciton generation.4. Incoherent Fo¨rster resonance energy transfer (FRET) 8­11 can occur between different-sized quantum dots

Hone, James

276

DOT-7A Type A packaging design guide  

SciTech Connect (OSTI)

The purpose of this Design Guide is to provide instruction for designing a U.S. Department of Transportation Specification 7A (DOT-7A) Type A packaging. Another purpose for this Design Guide is to support the evaluation and testing activities that are performed on new designs by a U.S. Department of Energy (DOE) test facility. This evaluation and testing program is called the DOT-7A Program. When an applicant has determined that a DOT-7A packaging is needed and not commercially available, a design may be created according to this document. The design should include a packaging drawing, specifications, analysis report, operating instructions, and a Packaging Qualification Checklist; all of which should be forwarded to a DOE/HQ approved test facility for evaluation and testing. This report is being submitted through the Engineering Documentation System so that it may be used for reference and information purposes.

Kelly, D.L.

1995-01-23T23:59:59.000Z

277

DOT-7A Type A packaging test and evaluation procedure  

SciTech Connect (OSTI)

The purpose of this document is to provide guidance for qualifying a DOT-7A Type A packaging for use. WHC qualifies DOT-7A packaging for two purposes. The first is to provide packages for use by WHC (manufacturer-qualified). The second is to provide a contracted service in support of DOE/EM-76 (DOE-qualified). This document includes descriptions of the performance tests, the personnel involved and their qualifications, appropriate safety and quality assurance considerations, and the procedures to be followed when WHC performs the tests (either as the manufacturer, or on behalf of the DOE`s certification program).

Kelly, D.L., Westinghouse Hanford

1996-06-13T23:59:59.000Z

278

Intermediate-band photosensitive device with quantum dots having tunneling barrier embedded in organic matrix  

DOE Patents [OSTI]

A plurality of quantum dots each have a shell. The quantum dots are embedded in an organic matrix. At least the quantum dots and the organic matrix are photoconductive semiconductors. The shell of each quantum dot is arranged as a tunneling barrier to require a charge carrier (an electron or a hole) at a base of the tunneling barrier in the organic matrix to perform quantum mechanical tunneling to reach the respective quantum dot. A first quantum state in each quantum dot is between a lowest unoccupied molecular orbital (LUMO) and a highest occupied molecular orbital (HOMO) of the organic matrix. Wave functions of the first quantum state of the plurality of quantum dots may overlap to form an intermediate band.

Forrest, Stephen R. (Ann Arbor, MI)

2008-08-19T23:59:59.000Z

279

Ultrasmall silicon quantum dots F. A. Zwanenburg,1,a  

E-Print Network [OSTI]

by a model based on the Poisson equation. The smallest dots 12 nm allow identification of the last charge-down planar silicon devices,1­3 produced by etching bulk materials down to nanometer dimensions, often show understanding of the specific system. This has allowed us to realize the first experimental identification

280

Phonons in quantum dots and their role in exciton dephasing  

E-Print Network [OSTI]

-nitrides. Values are taken from [5]. The values for the nitride compounds are taken from density functional dots (QDs). The state of the art is reported in detail in the present book. A large application- driven the theory of acoustic phonons in QDs is explained in Sec. 3. Special emphasis is given to continuum

Zimmermann, Roland

Note: This page contains sample records for the topic "addthis dot harris" 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

TRICOLOR LIGHT EMITTING DIODE DOT MATRIX DISPLAY SYSTEM WITHAUDIO OUTPUT  

E-Print Network [OSTI]

1 TRICOLOR LIGHT EMITTING DIODE DOT MATRIX DISPLAY SYSTEM WITHAUDIO OUTPUT Grantham Pang, Chi emitting diodes; tricolor display; audio communication. I. Introduction This paper relates to a tricolor broadcasting through the visible light rays transmitted by the display panel or assembly. Keywords: light

Pang, Grantham

282

Circuit QED in a double quantum dot system  

SciTech Connect (OSTI)

Strong coupling peculiar feature is demonstrated in a coupled qubit-resonator system consisting of a GaAs double quantum dot and a coplanar waveguide resonator. Qubit-resonator coupling strength (g and the decoherence rate ? are directly derived from the experiment, assuring a strong coupling condition (g/? ? 2)

Toida, Hiraku; Nakajima, Takashi; Komiyama, Susumu [Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan)

2013-12-04T23:59:59.000Z

283

Electronic structure of quantum dots Stephanie M. Reimann  

E-Print Network [OSTI]

Electronic structure of quantum dots Stephanie M. Reimann Mathematical Physics, Lund Institute are reviewed. Experimental techniques for measuring the electronic shell structure and the effect of magnetic fields are briefly described. The electronic structure is analyzed in terms of simple single

Wu, Zhigang

284

State DOT: Colorado State Report Questions on MEPDG Implementation  

E-Print Network [OSTI]

State DOT: Colorado State Report Questions on MEPDG Implementation 1. Summarize your state's status as far as MEPDG Implementation. Currently, CDOT is in the process of validating the MEPDG in Colorado and calibrating it to Colorado performance data. 2. What efforts have been made toward local calibration? CDOT has

285

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT  

E-Print Network [OSTI]

Portland Cement Concrete Pavement Shannon Golden, Alabama DOT PORTLAND CEMENT CONCRETE PAVEMENT PROJECT · First in Alabama in more than 25 years! · IM-I059 (342) Etowah County ­ I-59 Concrete Pavement Rehabilitation with Unbonded Concrete Overlay ­ Length: 10.9 miles ­ Thickness: 11.0 to 13.5 inches ­ Volume: 300

286

Alabama DOT: Alabama Report Questions on NDT Testing  

E-Print Network [OSTI]

Alabama DOT: Alabama Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? · We perform pavement smoothness testing, pavement friction testing and FWD testing · We are currently using GPR on the I-59 project to locate voids

287

State DOT: California State Report Questions on NDT Testing  

E-Print Network [OSTI]

test for this purpose. For concrete pavement, California has used falling weight deflectometer (FWD locations within concrete pavement. 2. In your experience, how does the reliability of NDT testing methodsState DOT: California State Report Questions on NDT Testing 1. What NDT testing methods

288

State DOT: Louisiana State Report Questions on NDT Testing  

E-Print Network [OSTI]

State DOT: Louisiana State Report Questions on NDT Testing 1. What NDT testing methods for concrete materials, concrete pavements, and overlays are you trying? LADOTD does not test concrete pavements or overlays non-destructively. We do use the surface resistivity meter for non-destructive testing

289

Quantum dot-based nanomaterials for biological imaging  

E-Print Network [OSTI]

Quantum dot-based fluorescent probes were synthesized and applied to biological imaging in two distinct size regimes: (1) 100-1000 nm and (2) < 10 nm in diameter. The larger diameter range was accessed by doping CdSe/ZnS ...

Zimmer, John P. (John Philip)

2006-01-01T23:59:59.000Z

290

Mn/DOT's Ombudsman Program Collaboration and Process  

E-Print Network [OSTI]

Mn/DOT's Ombudsman Program Collaboration and Process #12;Overview Ombudsman exists to rebuild trust on the environmental and municipal consent processes can be critical #12;A Large Organization #12;Tragedy;Ombudsman Does Not... ·! Advocate for one party or point of view ·! Own any formal process or policy

Minnesota, University of

291

Farewell to a water resources legend: B.L. Harris retires after more than 10 years with the Texas Water Resources Institute  

E-Print Network [OSTI]

on this legacy. Bill has made an exceptional impact on TWRI and the water programs in Texas and the United States.? From developing state and federal initiatives to providing input on strategic planning, Harris has positioned priority water issues within..., TWRI developed and submi#14;ed #27;#21;#26; individual proposals for water projects, most with TWRI as lead and some that TWRI facilitated. Of those submi#14;ed proposals, #25;#27;#25; were funded, amounting to #22;#21;#21; million. In conjunction...

Kalisek, Danielle

2011-01-01T23:59:59.000Z

292

Ordered quantum dot molecules and single quantum dots formed by self-organized anisotropic strain engineering  

SciTech Connect (OSTI)

An ordered lattice of lateral InAs quantum dot (QD) molecules is created by self-organized anisotropic strain engineering of an (In,Ga)As/GaAs superlattice (SL) template on GaAs(311)B by molecular-beam epitaxy, constituting a Turing pattern in solid state. The SL template and InAs QD growth conditions, such as the number of SL periods, growth temperatures, amount and composition of deposited (In,Ga)As, and insertion of Al-containing layers, are studied in detail for an optimized QD ordering within and among the InAs QD molecules on the SL template nodes, which is evaluated by atomic force microscopy. The average number of InAs QDs within the molecules is controlled by the thickness of the upper GaAs separation layer on the SL template and the (In,Ga)As growth temperature in the SL. The strain-correlated growth in SL template formation and QD ordering is directly confirmed by high-resolution x-ray diffraction. Ordered arrays of single InAs QDs on the SL template nodes are realized for elevated SL template and InAs QD growth temperatures together with the insertion of a second InAs QD layer. The InAs QD molecules exhibit strong photoluminescence (PL) emission up to room temperature. Temperature-dependent PL measurements exhibit an unusual behavior of the full width at half maximum, indicating carrier redistribution solely within the QD molecules.

Lippen, T. van; Noetzel, R.; Hamhuis, G.J.; Wolter, J.H. [European Institute of Telecommunication Technologies/Communication Technology, Basic Research and Applications (eiTT/COBRA) Inter-University Research Institute, Eindhoven University of Technology, 5600 MB Eindhoven (Netherlands)

2005-02-15T23:59:59.000Z

293

Simulation of quantum dots size and spacing effect for intermediate band solar cell application based on InAs quantum dots arrangement in GaAs  

SciTech Connect (OSTI)

Intermediate band solar cell (IBSC) has become a promising technology in increasing solar cell efficiency. In this work we compare absorption coefficient profile between InAs quantum dots with GaAs bulk. We calculate the efficiency of GaAs bulk and GaAs doped with 2, 5, and 10 nm InAs quantum dot. Effective distances in quantum dot arrangement based on electron tunneling consideration were also calculated. We presented a simple calculation method with low computing power demand. Results showed that arrangement of quantum dot InAs in GaAs can increase solar cell efficiency from 23.9 % initially up to 60.4%. The effective distance between two quantum dots was found 2 nm in order to give adequate distance to prevent electron tunneling and wave functions overlap.

Hendra, P. I. B., E-mail: ib.hendra@gmail.com; Rahayu, F., E-mail: ib.hendra@gmail.com; Darma, Y., E-mail: ib.hendra@gmail.com [Physical Vapor Deposition Laboratory, Physics of Material Electronics Research, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

2014-03-24T23:59:59.000Z

294

Resonant scattering of surface plasmon polaritons by dressed quantum dots  

SciTech Connect (OSTI)

The resonant scattering of surface plasmon-polariton waves (SPP) by embedded semiconductor quantum dots above the dielectric/metal interface is explored in the strong-coupling regime. In contrast to non-resonant scattering by a localized dielectric surface defect, a strong resonant peak in the spectrum of the scattered field is predicted that is accompanied by two side valleys. The peak height depends nonlinearly on the amplitude of SPP waves, reflecting the feedback dynamics from a photon-dressed electron-hole plasma inside the quantum dots. This unique behavior in the scattered field peak strength is correlated with the occurrence of a resonant dip in the absorption spectrum of SPP waves due to the interband photon-dressing effect. Our result on the scattering of SPP waves may be experimentally observable and applied to spatially selective illumination and imaging of individual molecules.

Huang, Danhong; Cardimona, Dave [Air Force Research Laboratory, Space Vehicles Directorate, Kirtland Air Force Base, New Mexico 87117 (United States); Easter, Michelle [Department of Mechanical Engineering, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, New Jersey 07030 (United States); Gumbs, Godfrey [Department of Physics and Astronomy, Hunter College of the City University of New York, 695 Park Avenue, New York, New York 10065 (United States); Maradudin, A. A. [Department of Physics and Astronomy, University of California, Irvine, California 92697 (United States); Lin, Shawn-Yu [Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180 (United States); Zhang, Xiang [Department of Mechanical Engineering, 3112 Etcheverry Hall, University of California at Berkeley, Berkeley, California 94720 (United States)

2014-06-23T23:59:59.000Z

295

Features of the electronic spectrum in a type-I core - shell quantum dot  

SciTech Connect (OSTI)

The model is proposed, which allows one to solve the problem of finding the energy spectrum and the wave function of an electron in a type-I core - shell quantum dot. It is shown that the size of the core and shell can serve as control parameters for the optimisation of the energy structure of the quantum dot in order to obtain the real structures with desired electrophysical and optical properties. (quantum dots)

Igoshina, S E; Karmanov, A A [Penza State University, Penza (Russian Federation)

2013-01-31T23:59:59.000Z

296

Formation of long-range ordered quantum dots arrays in amorphous matrix by ion beam irradiation  

SciTech Connect (OSTI)

We demonstrate the production of a well ordered three-dimensional array of Ge quantum dots in amorphous silica matrix. The ordering is achieved by ion beam irradiation and annealing of a multilayer film. Structural analysis shows that quantum dots nucleate along the direction of the ion beam used for irradiation, while the mutual distance of the quantum dots is determined by the diffusion properties of the multilayer material rather than the distances between traces of ions that are used for irradiation.

Buljan, M. [Charles University in Prague, Prague 12116 (Czech Republic); Ruder Boskovic Institute, Zagreb 10000 (Croatia); Bogdanovic-Radovic, I.; Karlusic, M.; Desnica, U. V.; Radic, N.; Dubcek, P. [Ruder Boskovic Institute, Zagreb 10000 (Croatia); Drazic, G. [Jozef Stefan Institute, Ljubljana 1000 (Slovenia); Salamon, K. [Institute of Physics, Zagreb 10000 (Croatia); Bernstorff, S. [Sincrotrone Trieste, Basovizza 34012 (Italy); Holy, V. [Charles University in Prague, Prague 12116 (Czech Republic)

2009-08-10T23:59:59.000Z

297

Phonon-mediated coupling between quantum dots through an off-resonant microcavity  

E-Print Network [OSTI]

We present experimental results showing phonon-mediated coupling between two quantum dots embedded inside a photonic crystal microcavity. With only one of the dots being spectrally close to the cavity, we observe both frequency up-conversion and down-conversion of the pump light via a $\\sim1.2$ THz phonon. We demonstrate this process for both weak and strong regimes of dot-cavity coupling, and provide a simple theoretical model explaining our observations.

Arka Majumdar; Michal Bajcsy; Armand Rundquist; Erik Kim; Jelena Vuckovic

2011-11-30T23:59:59.000Z

298

Quantum optics and cavity QED with quantum dots in photonic crystals  

E-Print Network [OSTI]

This chapter will primarily focus on the studies of quantum optics with semiconductor, epitaxially grown quantum dots embedded in photonic crystal cavities. We will start by giving brief introductions into photonic crystals and quantum dots, then proceed with the introduction to cavity quantum electrodynamics (QED) effects, with a particular emphasis on the demonstration of these effects on the quantum dot-photonic crystal platform. Finally, we will focus on the applications of such cavity QED effects.

Jelena Vuckovic

2014-02-11T23:59:59.000Z

299

Optical Nonlinearities and Ultrafast Carrier Dynamics in Semiconductor Quantum Dots  

SciTech Connect (OSTI)

Low-dimensional semiconductors have attracted great interest due to the potential for tailoring their linear and nonlinear optical properties over a wide-range. Semiconductor nanocrystals (NC's) represent a class of quasi-zero-dimensional objects or quantum dots. Due to quantum cordhement and a large surface-to-volume ratio, the linear and nonlinear optical properties, and the carrier dynamics in NC's are significantly different horn those in bulk materials. napping at surface states can lead to a fast depopulation of quantized states, accompanied by charge separation and generation of local fields which significantly modifies the nonlinear optical response in NC's. 3D carrier confinement also has a drastic effect on the energy relaxation dynamics. In strongly confined NC's, the energy-level spacing can greatly exceed typical phonon energies. This has been expected to significantly inhibit phonon-related mechanisms for energy losses, an effect referred to as a phonon bottleneck. It has been suggested recently that the phonon bottleneck in 3D-confined systems can be removed due to enhanced role of Auger-type interactions. In this paper we report femtosecond (fs) studies of ultrafast optical nonlinearities, and energy relaxation and trap ping dynamics in three types of quantum-dot systems: semiconductor NC/glass composites made by high temperature precipitation, ion-implanted NC's, and colloidal NC'S. Comparison of ultrafast data for different samples allows us to separate effects being intrinsic to quantum dots from those related to lattice imperfections and interface properties.

Klimov, V.; McBranch, D.; Schwarz, C.

1998-08-10T23:59:59.000Z

300

Photovoltaic performance of ultra-small PbSe quantum dots  

E-Print Network [OSTI]

Y; Alivisatos, AP, Photovoltaic Devices Employing TernaryPhotovoltaic performance of ultra-small PbSe quantum dotsquantum dot, solar cell, photovoltaic, quantum size effect

Ma, Wanli

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Comment on "Analysis of quantum coherent semiconductor quantum dot p-i-n junction photovoltaic cells"  

E-Print Network [OSTI]

This is a comment on PRL paper by A.P. Kirk "Analysis of quantum coherent semiconductor quantum dot p-i-n junction photovoltaic cells"

Scully, Marlan O

2010-01-01T23:59:59.000Z

302

A Graphene Quantum Dot with a Single Electron Transistor as Integrated Charge Sensor  

E-Print Network [OSTI]

We have developed an etching process to fabricate a quantum dot and a nearby single electron transistor as a charge detector in a single layer graphene. The high charge sensitivity of the detector is used to probe Coulomb diamonds as well as excited spectrum in the dot, even in the regime where the current through the quantum dot is too small to be measured by conventional transport means. The graphene based quantum dot and integrated charge sensor serve as an essential building block to form a solid-state qubit in a nuclear-spin-free quantum world.

Ling-Jun Wang; Gang Cao; Tao Tu; Hai-Ou Li; Cheng Zhou; Xiao-Jie Hao; Zhan Su; Guang-Can Guo; Guo-Ping Guo; Hong-Wen Jiang

2010-08-28T23:59:59.000Z

303

artificial quantum-dot helium: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

304

acid-capped cdse quantum-dot: Topics by E-print Network  

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

Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Biology and Medicine Websites Summary: to Third-Generation...

305

Dear Mr. Harris,  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit Services Audit Report Department of EnergyEnergy Dealing withOctober1,

306

Mr. Harry S. Cohen  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545 OCT 28 1% - : Mr.~of theJ-UN 2a50b Mr.

307

TO : W. B. Harris  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545 OCT 28SacandagaSiteCT-. \5-1 .: R./:'

308

Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor  

E-Print Network [OSTI]

Commensurability effects induced by a periodic array of nanoscale anti-dots in Nb superconductor A. PACS: 74.25.Ha; 74.76.)w Keywords: Nanostructures; Anti-dots; Commensurability 1. Introduction atomic layers on periodical substrate [5], magnetic bubble arrays [6] and the magnetically induced Wigner

Metlushko, Vitali

309

Large open telescope: size-upscaling from DOT to LOT Robert H. Hammerschlaga  

E-Print Network [OSTI]

Large open telescope: size-upscaling from DOT to LOT Robert H. Hammerschlaga , Aswin P. L. Jägersb, telescope drives 1. INTRODUCTION The Dutch Open Telescope (DOT) on the Canary island La Palma consists temperature homogeneous. No warm air bubbles are forced upwards against the closed wall of a tower and no heat

Rutten, Rob

310

Project Information Form Project Title White Paper on Climate Adaptation for State DOTs and Local Agencies  

E-Print Network [OSTI]

each agency or organization) DOT $30,000 Total Project Cost $30,000 Agency ID or Contract Number DTRT13Project Information Form Project Title White Paper on Climate Adaptation for State DOTs and Local-G-UTC29 Start and End Dates January 2014 to December 2014 Brief Description of Research Project

California at Davis, University of

311

Self-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy  

E-Print Network [OSTI]

investigated on the epitaxy and self- organization of laterally nanostructured transition metal TM silicideSelf-assembly of silicide quantum dot arrays on stepped silicon surfaces by reactive epitaxy L to be a flexible and a convenient method for the preparation of dense arrays of Co silicide quantum dots

Ortega, Enrique

312

Review paper: Toward highly efficient quantum-dot-and dye-sensitized solar cells  

E-Print Network [OSTI]

Review paper: Toward highly efficient quantum-dot- and dye-sensitized solar cells Hongsik Choi Interface control Light harvesting Tandem solar cell a b s t r a c t Dye- and quantum-dot-sensitized solar technologies of silicon-based solar cells should be resolved [7]. Dye-sensitized solar cells (DSSCs) have been

Park, Byungwoo

313

Evidence for formation of multi-quantum dots in hydrogenated graphene  

E-Print Network [OSTI]

Abstract We report the experimental evidence for the formation of multi-quantum dots in a hydrogenated single-layer graphene flake. The existence of multi-quantum dots is supported by the low-temperature measurements on a field effect transistor...

Chuang, Chiashain; Puddy, Reuben K; Connolly, Malcolm R; Lo, Shun-Tsung; Lin, Huang-De; Chen, Tse-Ming; Smith, Charles G; Liang, Chi-Te

2012-08-16T23:59:59.000Z

314

Rapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation  

E-Print Network [OSTI]

- grade their optical properties. In this paper, we report on the effects of gamma irradiationRapid degradation of CdSe/ZnS colloidal quantum dots exposed to gamma irradiation Nathan J. Withers of 137 Cs gamma irradiation on photoluminescent properties of CdSe/ZnS colloidal quantum dots

New Mexico, University of

315

Arrays of nanoscale magnetic dots: Fabrication by x-ray interference lithography and characterization  

SciTech Connect (OSTI)

X-ray interference lithography (XIL) was employed in combination with electrodeposition to fabricate arrays of nanoscale nickel dots which are uniform over 40 {mu}m and have periods down to 71 nm. Using extreme-ultraviolet light, XIL has the potential to produce magnetic dot arrays over large areas with periods well below 50 nm, and down to a theoretical limit of 6.5 nm for a 13 nm x-ray wavelength. In the nickel dot arrays, we observed the effect of interdot magnetic stray field interactions. Measuring the hysteresis loops using the magneto-optical Kerr effect, a double switching via the vortex state was observed in the nickel dots with diameters down to 44 nm and large dot separations. As the dot separations are reduced to below around 50 nm a single switching, occurring by collective rotation of the magnetic spins, is favored due to interdot magnetic stray field interactions. This results in magnetic flux closure through several dots which could be visualized with micromagnetic simulations. Further evidence of the stray field interactions was seen in photoemission electron microscopy images, where bands of contrast corresponding to chains of coupled dots were observed.

Heyderman, L.J.; Solak, H.H.; David, C.; Atkinson, D.; Cowburn, R.P.; Nolting, F. [Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland); Nanomagnetism Group, Department of Physics, University of Durham, Rochester Building, Science Laboratories, South Road, Durham DH1 3LE (United Kingdom); Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

2004-11-22T23:59:59.000Z

316

Bioimaging 4 (1996) 93106. Printed in the UK Fluorescent dot counting in  

E-Print Network [OSTI]

Bioimaging 4 (1996) 93­106. Printed in the UK Fluorescent dot counting in interphase cell nuclei allows the enumeration of chromosomal abnormalities in interphase cell nuclei. This process is called dot counting. To estimate the distribution of chromosomes per cell, a large number of cells have to be analysed

van Vliet, Lucas J.

317

Light extraction analysis and enhancement in a quantum dot light emitting diode  

E-Print Network [OSTI]

Light extraction analysis and enhancement in a quantum dot light emitting diode Ruidong Zhu outcoupling and angular performance of quantum dot light emitting diode (QLED). To illustrate the design principles, we use a red QLED as an example and compare its performance with an organic light emitting diode

Wu, Shin-Tson

318

Double-dot charge transport in Si single-electronhole transistors L. P. Rokhinson,a)  

E-Print Network [OSTI]

­oxide­ semiconductor field-effect transistors MOSFETs brought to light several issues related to the electrical beneath the dot transforming it into a free-standing bridge. Subsequently, 40 or 50 nm of oxide are thermally grown which further reduce the size of the dot. Polysilicon gate is deposited over the bridge

Rokhinson, Leonid

319

Mid Infrared Focal Plane Arrays With Nanoscale Quantum Dots and Superlattices  

E-Print Network [OSTI]

Mid Infrared Focal Plane Arrays With Nanoscale Quantum Dots and Superlattices S. Krishna Center- Molecular beam epitaxy, Nanoscale, Quantum Dots Superlattices, Antimonides, Mid-infrared photodetector. I. INTRODUCTION Presently, the state of the art photon detectors for the mid wave infrared (MWIR, 3-5 µm) and long

Krishna, Sanjay

320

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot  

E-Print Network [OSTI]

Absorption and photoluminescence spectroscopy on a single self-assembled charge-tunable quantum dot PL and absorption spectroscopy on the same single self- assembled quantum dot in a charge the corresponding transition in absorption. We have developed a model of the Coulomb blockade to account

Ludwig-Maximilians-Universität, München

Note: This page contains sample records for the topic "addthis dot harris" 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

Enlarged symmetry and coherence in arrays of quantum dots A. V. Onufriev and J. B. Marston  

E-Print Network [OSTI]

. A Hubbard model then describes a pillar array of coupled dots, and at half-filling the system can be mapped materials. Recent advances in nanofabrication tech- niques offer the possibility of constructing artificial- teractions that lift the degeneracy. However, as Stafford and Das Sarma noticed,3 semiconducting quantum dots

Onufriev, Alexey

322

Photovoltaic quantum dot quantum cascade infrared photodetector A. V. Barve and S. Krishna  

E-Print Network [OSTI]

Photovoltaic quantum dot quantum cascade infrared photodetector A. V. Barve and S. Krishna Citation subject to AIP license or copyright; see http://apl.aip.org/about/rights_and_permissions #12;Photovoltaic) Design and characterization of a quantum dot quantum cascade detector for photovoltaic midwave infrared

Krishna, Sanjay

323

Ambient-Processed Colloidal Quantum Dot Solar Cells via Individual Pre-Encapsulation of Nanoparticles  

E-Print Network [OSTI]

Ambient-Processed Colloidal Quantum Dot Solar Cells via Individual Pre-Encapsulation, 2010; E-mail: ted.sargent@utoronto.ca Solution-processed solar cells employing colloidal quantum dots-junction and tandem solar cells both rely on IR-band-gap semiconductors, there has been much recent emphasis

324

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot  

E-Print Network [OSTI]

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot C. L dynamics of a single Mn atom in a laser driven CdTe quantum dot is addressed theoretically. Recent of single Mn-doped CdTe dots, information about the quantum spin state of a single Mn atom is extracted from

Paris-Sud XI, Université de

325

Single photon emission from site-controlled InGaN/GaN quantum dots  

SciTech Connect (OSTI)

Single photon emission was observed from site-controlled InGaN/GaN quantum dots. The single-photon nature of the emission was verified by the second-order correlation function up to 90?K, the highest temperature to date for site-controlled quantum dots. Micro-photoluminescence study on individual quantum dots showed linearly polarized single exciton emission with a lifetime of a few nanoseconds. The dimensions of these quantum dots were well controlled to the precision of state-of-the-art fabrication technologies, as reflected in the uniformity of their optical properties. The yield of optically active quantum dots was greater than 90%, among which 13%–25% exhibited single photon emission at 10?K.

Zhang, Lei; Hill, Tyler A.; Deng, Hui, E-mail: dengh@umich.edu [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109 (United States)] [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109 (United States); Teng, Chu-Hsiang; Lee, Leung-Kway; Ku, Pei-Cheng, E-mail: peicheng@umich.edu [Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Ave., Ann Arbor, Michigan 48109 (United States)] [Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Ave., Ann Arbor, Michigan 48109 (United States)

2013-11-04T23:59:59.000Z

326

Intermediate-band photosensitive device with quantum dots embedded in energy fence barrier  

DOE Patents [OSTI]

A plurality of layers of a first semiconductor material and a plurality of dots-in-a-fence barriers disposed in a stack between a first electrode and a second electrode. Each dots-in-a-fence barrier consists essentially of a plurality of quantum dots of a second semiconductor material embedded between and in direct contact with two layers of a third semiconductor material. Wave functions of the quantum dots overlap as at least one intermediate band. The layers of the third semiconductor material are arranged as tunneling barriers to require a first electron and/or a first hole in a layer of the first material to perform quantum mechanical tunneling to reach the second material within a respective quantum dot, and to require a second electron and/or a second hole in a layer of the first semiconductor material to perform quantum mechanical tunneling to reach another layer of the first semiconductor material.

Forrest, Stephen R. (Ann Arbor, MI); Wei, Guodan (Ann Arbor, MI)

2010-07-06T23:59:59.000Z

327

Coupling of PbS Quantum Dots to Photonic Crystal Cavities at Room Temperature  

E-Print Network [OSTI]

We demonstrate the coupling of PbS quantum dot emission to photonic crystal cavities at room temperature. The cavities are defined in 33% Al, AlGaAs membranes on top of oxidized AlAs. Quantum dots were dissolved in Poly-methyl-methacrylate (PMMA) and spun on top of the cavities. Quantum dot emission is shown to map out the structure resonances, and may prove to be viable sources for room temperature cavity coupled single photon generation for quantum information processing applications. These results also indicate that such commercially available quantum dots can be used for passive structure characterization. The deposition technique is versatile and allows layers with different dot densities and emission wavelengths to be re-deposited on the same chip.

Ilya Fushman; Dirk Englund; Jelena Vuckovic

2005-05-14T23:59:59.000Z

328

Single photon absorption and dynamic control of a coupled quantum dot-cavity system  

E-Print Network [OSTI]

We theoretically investigate the dynamic interaction of a quantum dot in a nanocavity with timesymmetric single photon pulses. The simulations, based on a wavefunction approach, reveal that almost perfect single photon absorption occurs for quantum dot-cavity systems operating on the edge between strong and weak coupling regime. The computed maximum absorptions probability is close to unity for pulses with a typical length comparable to the half of the Rabi period. Furthermore, the dynamic control of the quantum dot energy via electric fields allows the freezing of the light-matter interaction leaving the quantum dot in its excited state. Shaping of single photon wavepackets by the electric field control is limited by the occurrence of chirping of the single photon pulse. This understanding of the interaction of single photon pulses with the quantum dot-cavity system provides the basis for the development of advanced protocols for quantum information processing in the solid state.

Robert Johne; Andrea Fiore

2011-10-11T23:59:59.000Z

329

Photoluminescence-enhanced biocompatible quantum dots by phospholipid functionalization  

SciTech Connect (OSTI)

A simple two-step strategy using phospholipid (PPL) to functionalize core/shell CdSe/ZnS quantum dots (QDs) has been described. The experimental data show that the use of S-H terminated PPL results not only in the high colloidal stability of core/shell CdSe/ZnS QDs in the aqueous phase, but also in the significant enhancement of photoluminescence. The degree of the enhancement is a function of the PPL-CdSe/ZnS QDs sample concentration. These results might be promising for future biological platform in new devices ranging from photovoltaic cells to biosensors and other devices.

Shi Yunfeng [School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); He Peng [Department of Chemistry, North Carolina State University, Raleigh, NC 27695 (United States)], E-mail: phe@ncsu.edu; Zhu Xinyuan [School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); Instrumental Analysis Center, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030 (China)], E-mail: xyzhu@sjtu.edu.cn

2008-10-02T23:59:59.000Z

330

Electric Field effects on quantum correlations in semiconductor quantum dots  

E-Print Network [OSTI]

We study the effect of external electric bias on the quantum correlations in the array of optically excited coupled semiconductor quantum dots. The correlations are characterized by the quantum discord and concurrence and are observed using excitonic qubits. We employ the lower bound of concurrence for thermal density matrix at different temperatures. The effect of the F\\"orster interaction on correlations will be studied. Our theoretical model detects nonvanishing quantum discord when the electric field is on while concurrence dies, ensuring the existence of nonclassical correlations as measured by the quantum discord.

S. Shojaei; M. Mahdian; R. Yousefjani

2012-05-01T23:59:59.000Z

331

Activation of molecular catalysts using semiconductor quantum dots  

DOE Patents [OSTI]

Photocatalytic materials based on coupling of semiconductor nanocrystalline quantum dots (NQD) and molecular catalysts. These materials have capability to drive or catalyze non-spontaneous chemical reactions in the presence of visible radiation, ultraviolet radiation, or both. The NQD functions in these materials as a light absorber and charge generator. Following light absorption, the NQD activates a molecular catalyst adsorbed on the surface of the NQD via transfer of one or more charges (either electrons or electron-holes) from the NQD to the molecular catalyst. The activated molecular catalyst can then drive a chemical reaction. A photoelectrolytic device that includes such photocatalytic materials is also described.

Meyer, Thomas J. (Chapel Hill, NC); Sykora, Milan (Los Alamos, NM); Klimov, Victor I. (Los Alamos, NM)

2011-10-04T23:59:59.000Z

332

Quantum Dots-based Reverse Phase Protein Microarray  

SciTech Connect (OSTI)

CdSe nanocrystals, also called quantum dots (Qdots) are a novel class of fluorophores, which have a diameter of a few nanometers and possess high quantum yield, tunable emission wavelength and photostability. They are an attractive alternative to conventional fluorescent dyes. Quantum dots can be silanized to be soluble in aqueous solution under biological conditions, and thus be used in bio-detection. In this study, we established a novel Qdot-based technology platform that can perform accurate and reproducible quantification of protein concentration in a crude cell lysate background. Protein lysates have been spiked with a target protein, and a dilution series of the cell lysate with a dynamic range of three orders of magnitude has been used for this proof-of-concept study. The dilution series has been spotted in microarray format, and protein detection has been achieved with a sensitivity that is at least comparable to standard commercial assays, which are based on horseradish peroxidase (HRP) catalyzed diaminobenzidine (DAB) chromogenesis. The data obtained through the Qdot method has shown a close linear correlation between relative fluorescence unit and relative protein concentration. The Qdot results are in almost complete agreement with data we obtained with the well-established HRP-DAB colorimetric array (R{sup 2} = 0.986). This suggests that Qdots can be used for protein quantification in microarray format, using the platform presented here.

Shingyoji, Masato; Gerion, Daniele; Pinkel, Dan; Gray, Joe W.; Chen, Fanqing

2005-07-15T23:59:59.000Z

333

Theory of dynamic nuclear polarization and feedback in quantum dots  

E-Print Network [OSTI]

An electron confined in a quantum dot interacts with its local nuclear spin environment through the hyperfine contact interaction. This interaction combined with external control and relaxation or measurement of the electron spin allows for the generation of dynamic nuclear polarization. The quantum nature of the nuclear bath, along with the interplay of coherent external fields and incoherent dynamics in these systems renders a wealth of intriguing phenomena seen in recent experiments such as electron Zeeman frequency focusing, hysteresis, and line dragging. We develop in detail a fully quantum, self-consistent theory that can be applied to such experiments and that moreover has predictive power. Our theory uses the operator sum representation formalism in order to incorporate the incoherent dynamics caused by the additional, Markovian bath, which in self-assembled dots is the vacuum field responsible for electron-hole optical recombination. The beauty of this formalism is that it reduces the complexity of the problem by encoding the joint dynamics of the external coherent and incoherent driving in an effective dynamical map that only acts on the electron spin subspace. This together with the separation of timescales in the problem allows for a tractable and analytically solvable formalism. The key role of entanglement between the electron spin and the nuclear spins in the formation of dynamic nuclear polarization naturally follows from our solution. We demonstrate the theory in detail for an optical pulsed experiment and present an in-depth discussion and physical explanation of our results.

Sophia E. Economou; Edwin Barnes

2014-04-06T23:59:59.000Z

334

Tuning the properties of Ge-quantum dots superlattices in amorphous silica matrix through deposition conditions  

SciTech Connect (OSTI)

In this work, we investigate the structural properties of Ge quantum dot lattices in amorphous silica matrix, prepared by low-temperature magnetron sputtering deposition of (Ge+SiO{sub 2})/SiO{sub 2} multilayers. The dependence of quantum dot shape, size, separation, and arrangement type on the Ge-rich (Ge + SiO{sub 2}) layer thickness is studied. We show that the quantum dots are elongated along the growth direction, perpendicular to the multilayer surface. The size of the quantum dots and their separation along the growth direction can be tuned by changing the Ge-rich layer thickness. The average value of the quantum dots size along the lateral (in-plane) direction along with their lateral separation is not affected by the thickness of the Ge-rich layer. However, the thickness of the Ge-rich layer significantly affects the quantum dot ordering. In addition, we investigate the dependence of the multilayer average atomic composition and also the quantum dot crystalline quality on the deposition parameters.

Pinto, S. R. C.; Ramos, M. M. D.; Gomes, M. J. M. [University of Minho, Centre of Physics and Physics Department, Braga 4710-057 (Portugal); Buljan, M. [Ruder Boskovic Institute, Bijenicka cesta 54, Zagreb 10000 (Croatia); Chahboun, A. [University of Minho, Centre of Physics and Physics Department, Braga 4710-057 (Portugal); Physics Department, FST Tanger, Tanger BP 416 (Morocco); Roldan, M. A.; Molina, S. I. [Departamento de Ciencia de los Materiales e Ing. Metalurgica y Q. I., Universidad de Cadiz, Cadiz (Spain); Bernstorff, S. [Sincrotrone Trieste, SS 14 km163, 5, Basovizza 34012 (Italy); Varela, M.; Pennycook, S. J. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Barradas, N. P.; Alves, E. [Instituto Superior Tecnico e Instituto Tecnologico e Nuclear-, EN10, Sacavem 2686-953 (Portugal)

2012-04-01T23:59:59.000Z

335

Tuning the properties of Ge-quantum dots superlattices in amorphous silica matrix through deposition conditions  

SciTech Connect (OSTI)

In this work, we investigate the structural properties of Ge quantum dot lattices in amorphous silica matrix, prepared by low-temperature magnetron sputtering deposition of (Ge+SiO{sub 2})/SiO{sub 2} multilayers. The dependence of quantum dot shape, size, separation, and arrangement type on the Ge-rich (Ge + SiO{sub 2}) layer thickness is studied. We show that the quantum dots are elongated along the growth direction, perpendicular to the multilayer surface. The size of the quantum dots and their separation along the growth direction can be tuned by changing the Ge-rich layer thickness. The average value of the quantum dots size along the lateral (in-plane) direction along with their lateral separation is not affected by the thickness of the Ge-rich layer. However, the thickness of the Ge-rich layer significantly affects the quantum dot ordering. In addition, we investigate the dependence of the multilayer average atomic composition and also the quantum dot crystalline quality on the deposition parameters.

Pinto, S. [University of Minho, Portugal; Roldan Gutierrez, Manuel A [ORNL; Ramos, M. M.D. [University of Minho, Portugal; Gomes, M.J.M. [University of Minho, Portugal; Molina, S. I. [Universidad de Cadiz, Spain; Pennycook, Stephen J [ORNL; Varela del Arco, Maria [ORNL; Buljan, M. [R. Boskovic Institute, Zagreb, Croatia; Barradas, N. [Instituto Tecnologico e Nuclear (ITN), Lisbon, Portugal; Alves, E. [Instituto Tecnologico e Nuclear (ITN), Lisbon, Portugal; Chahboun, A. [FST Tanger, Morocco; Bernstorff, S. [Sincrotrone Trieste, Basovizza, Italy

2012-01-01T23:59:59.000Z

336

Green synthesis of highly efficient CdSe quantum dots for quantum-dots-sensitized solar cells  

SciTech Connect (OSTI)

Green synthesis of CdSe quantum dots for application in the quantum-dots-sensitized solar cells (QDSCs) is investigated in this work. The CdSe QDs were prepared with glycerol as the solvent, with sharp emission peak, full width at half maximum around 30?nm, and absorption peak from 475?nm to 510?nm. The reaction is environmental friendly and energy saving. What's more, the green synthesized CdSe QDs are coherence to the maximum remittance region of the solar spectrum and suitable as sensitizers to assemble onto TiO{sub 2} electrodes for cell devices application. What's more, the dynamic procedure of the carriers' excitation, transportation, and recombination in the QDSCs are discussed. Because the recombination of the electrons from the conduction band of TiO{sub 2}'s to the electrolyte affects the efficiency of the solar cells greatly, 3-Mercaptopropionic acid capped water-dispersible QDs were used to cover the surface of TiO{sub 2}. The resulting green synthesized CdSe QDSCs with Cu{sub 2}S as the electrode show a photovoltaic performance with a conversion efficiency of 3.39%.

Gao, Bing; Shen, Chao; Zhang, Mengya; Yuan, Shuanglong; Yang, Yunxia, E-mail: yangyunxia@ecust.edu.cn, E-mail: grchen@ecust.edu.cn; Chen, Guorong, E-mail: yangyunxia@ecust.edu.cn, E-mail: grchen@ecust.edu.cn [Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China); Zhang, Bo [Department of Physics, East China University of Science and Technology, Shanghai 200237 (China)

2014-05-21T23:59:59.000Z

337

Real-time effective-action approach to the Anderson quantum dot  

E-Print Network [OSTI]

The non-equilibrium time evolution of an Anderson quantum dot is investigated. The quantum dot is coupled between two leads forming a chemical-potential gradient. We use Kadanoff-Baym dynamic equations within a non-perturbative resummation of the s-channel bubble chains. The effect of the resummation leads to the introduction of a frequency-dependent 4-point vertex. The tunneling to the leads is taken into account exactly. The method allows the determination of the transient as well as stationary transport through the quantum dot, and results are compared with different schemes discussed in the literature (fRG, ISPI, tDMRG and QMC).

Sexty, Denes; Pawlowski, Jan

2010-01-01T23:59:59.000Z

338

Real-time effective-action approach to the Anderson quantum dot  

E-Print Network [OSTI]

The non-equilibrium time evolution of an Anderson quantum dot is investigated. The quantum dot is coupled between two leads forming a chemical-potential gradient. We use Kadanoff-Baym dynamic equations within a non-perturbative resummation of the s-channel bubble chains. The effect of the resummation leads to the introduction of a frequency-dependent 4-point vertex. The tunneling to the leads is taken into account exactly. The method allows the determination of the transient as well as stationary transport through the quantum dot, and results are compared with different schemes discussed in the literature (fRG, ISPI, tDMRG and QMC).

Denes Sexty; Thomas Gasenzer; Jan Pawlowski

2010-12-20T23:59:59.000Z

339

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

Trojnar, A; Kadantsev, E; Hawrylak, P; Goryca, M; Kazimierczuk, T; Kossacki, P; Wojnar, P; Potemski, M

2011-01-01T23:59:59.000Z

340

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

A. Trojnar; M. Korkusinski; E. Kadantsev; P. Hawrylak; M. Goryca; T. Kazimierczuk; P. Kossacki; P. Wojnar; M. Potemski

2011-05-04T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Strain-induced fundamental optical transition in (In,Ga)As/GaP quantum dots  

SciTech Connect (OSTI)

The nature of the ground optical transition in an (In,Ga)As/GaP quantum dot is thoroughly investigated through a million atoms supercell tight-binding simulation. Precise quantum dot morphology is deduced from previously reported scanning-tunneling-microscopy images. The strain field is calculated with the valence force field method and has a strong influence on the confinement potentials, principally, for the conduction band states. Indeed, the wavefunction of the ground electron state is spatially confined in the GaP matrix, close to the dot apex, in a large tensile strain region, having mainly Xz character. Photoluminescence experiments under hydrostatic pressure strongly support the theoretical conclusions.

Robert, C., E-mail: cedric.robert@insa-rennes.fr, E-mail: cedric.robert@tyndall.ie; Pedesseau, L.; Cornet, C.; Jancu, J.-M.; Even, J.; Durand, O. [Université Européenne de Bretagne, INSA Rennes, France and CNRS, UMR 6082 Foton, 20 Avenue des Buttes de Coësmes, 35708 Rennes (France)] [Université Européenne de Bretagne, INSA Rennes, France and CNRS, UMR 6082 Foton, 20 Avenue des Buttes de Coësmes, 35708 Rennes (France); Nestoklon, M. O. [Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg (Russian Federation)] [Ioffe Physico-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg (Russian Federation); Pereira da Silva, K. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain) [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); Departamento de Física, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza–CE, 60455-970 (Brazil); Alonso, M. I. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain)] [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); Goñi, A. R. [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain) [ICMAB-CSIC, Campus UAB, 08193 Bellaterra (Spain); ICREA, Passeig Lluís Companys 23, 08010 Barcelona (Spain); Turban, P. [Equipe de Physique des Surfaces et Interfaces, Institut de Physique de Rennes UMR UR1-CNRS 6251, Université de Rennes 1, F-35042 Rennes Cedex (France)] [Equipe de Physique des Surfaces et Interfaces, Institut de Physique de Rennes UMR UR1-CNRS 6251, Université de Rennes 1, F-35042 Rennes Cedex (France)

2014-01-06T23:59:59.000Z

342

Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene  

E-Print Network [OSTI]

Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown that the interdot coupling strength of the parallel double dots can be effectively tuned from weak to strong regime by both the in-plane plunger gates and back gate. All the relevant energy scales and parameters of the graphene parallel-coupled double dot can be extracted from the honeycomb charge stability diagrams revealed through the transport measurements.

Lin-Jun Wang; Guo-Ping Guo; Da Wei; Gang Cao; Tao Tu; Ming Xiao; Guang-Can Guo; A. M. Chang

2011-04-22T23:59:59.000Z

343

Far off-resonant coupling between photonic crystal microcavity and single quantum dot with resonant excitation  

SciTech Connect (OSTI)

In this paper, we experimentally demonstrate that with sub-nanowatt coherent s-shell excitation of a single InAs quantum dot, off-resonant coupling of 4.1?nm is possible between L3 photonic crystal microcavity and the quantum dot at 50?K. This resonant excitation reduces strongly the effect of surrounding charges to quantum dot, multiexciton complexes and pure dephasing. It seems that this far off-resonant coupling is the result of increased number of acoustical phonons due to high operating temperature of 50?K. The 4.1?nm detuning is the largest amount for this kind of coupling.

Banihashemi, Mehdi; Ahmadi, Vahid, E-mail: v-ahmadi@modares.ac.ir [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of)] [Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, P.O. Box 14115-194 (Iran, Islamic Republic of); Nakamura, Tatsuya; Kojima, Takanori; Kojima, Kazunobu; Noda, Susumu [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)] [Department of Electronic Science and Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510 (Japan)

2013-12-16T23:59:59.000Z

344

Theory of Electro-optic Modulation via a Quantum Dot Coupled to a Nano-resonator  

E-Print Network [OSTI]

In this paper, we analyze the performance of an electro-optic modulator based on a single quantum dot strongly coupled to a nano-resonator, where electrical control of the quantum dot frequency is achieved via quantum confined Stark effect. Using realistic system parameters, we show that modulation speeds of a few tens of GHz are achievable with this system, while the energy per switching operation can be as small as 0.5 fJ. In addition, we study the non-linear distortion, and the effect of pure quantum dot dephasing on the performance of the modulator.

Arka Majumdar; Nicolas Manquest; Andrei Faraon; Jelena Vuckovic

2009-11-27T23:59:59.000Z

345

Optical spectra and intensities of graphene magnetic dot bound to a negatively charged Coulomb impurity  

SciTech Connect (OSTI)

Employing numerical diagonalization, we study the optical properties of an electron in a monolayer-graphene magnetic dot bound to an off-center negatively charged Coulomb impurity based on the massless Dirac-Weyl model. Numerical results show that, since the electron-hole symmetry is broken by the Coulomb potential, the optical absorption spectra of the magnetic dot in the presence of a Coulomb impurity are different between the electron states and the hole states. Effects of both the magnetic field and the dot size on the absorption coefficient are presented as functions of the incident photon energies.

Lee, C. M., E-mail: mesimon-hk@yahoo.com.hk, E-mail: apkschan@cityu.edu.hk; Chan, K. S., E-mail: mesimon-hk@yahoo.com.hk, E-mail: apkschan@cityu.edu.hk [Department of Physics and Materials Science and Center for Functional Photonics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong (China); Shenzhen Research Institute, City University of Hong Kong, Shenzhen (China)

2014-07-28T23:59:59.000Z

346

Energy spectra of two electrons in a circular quantum dot  

E-Print Network [OSTI]

The electron interaction energy of two interacting electrons in a circular quantum dot (with hard wall confinement) is investigated in the framework of the semi-classical Wentzel-Kramers-Brillouin (WKB) approximation. The two electrons are assumed to be in an infinitely deep well of radius $r_0$, in a simple configuration with one electron fixed at the origin. The corresponding Schrodinger equation, with hard wall boundary conditions, is also solved exactly by numerical integration. It is observed that the agreement between the two energy values is quite good, suggesting that the WKB approximation works well for such a confined quantum system as well. This may provide motivation to extend this to more realistic confined potentials.

Anjana Sinha; Y. P. Varshni

2002-08-27T23:59:59.000Z

347

Location deterministic biosensing from quantum-dot-nanowire assemblies  

SciTech Connect (OSTI)

Semiconductor quantum dots (QDs) with high fluorescent brightness, stability, and tunable sizes, have received considerable interest for imaging, sensing, and delivery of biomolecules. In this research, we demonstrate location deterministic biochemical detection from arrays of QD-nanowire hybrid assemblies. QDs with diameters less than 10?nm are manipulated and precisely positioned on the tips of the assembled Gold (Au) nanowires. The manipulation mechanisms are quantitatively understood as the synergetic effects of dielectrophoretic (DEP) and alternating current electroosmosis (ACEO) due to AC electric fields. The QD-nanowire hybrid sensors operate uniquely by concentrating bioanalytes to QDs on the tips of nanowires before detection, offering much enhanced efficiency and sensitivity, in addition to the position-predictable rationality. This research could result in advances in QD-based biomedical detection and inspires an innovative approach for fabricating various QD-based nanodevices.

Liu, Chao [Materials Science and Engineering Program, Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712 (United States); Kim, Kwanoh [Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712 (United States); Fan, D. L., E-mail: dfan@austin.utexas.edu [Materials Science and Engineering Program, Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712 (United States); Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas 78712 (United States)

2014-08-25T23:59:59.000Z

348

High performance tunnel injection quantum dot comb laser  

SciTech Connect (OSTI)

A high-speed multiwavelength quantum dot comb laser, grown by molecular beam epitaxy, is demonstrated. The device is characterized with a 75.9 nm (full width at half maximum) and a 91.4 nm (DELTA{sub -15dB}) wide lasing spectrum. There are 105 and 185 simultaneously emitted longitudinal modes with a maximum channel intensity nonuniformity of less than 3 dB in the spectral range of 1231-1252 nm and 1274-1311 nm, respectively, for a laser with 1040 mum cavity length. The channel spacing can be tuned with cavity length and remains invariant in the temperature range of 300-323 K. The small signal modulation bandwidth is 7.5 GHz.

Lee, C.-S.; Guo Wei; Basu, Debashish; Bhattacharya, Pallab [Department of Electrical Engineering and Computer Science, Solid State Electronics Laboratory, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2010-03-08T23:59:59.000Z

349

Fluorescence quenching of CdSe quantum dots on graphene  

SciTech Connect (OSTI)

We studied systematically the fluorescence quenching of CdSe quantum dots (QDs) on graphene and its multilayers, as well as graphene oxide (GO) and reduced graphene oxide (rGO). Raman intensity of QDs was used as a quantitatively measurement of its concentration in order to achieve a reliable quenching factor (QF). It was found that the QF of graphene (?13.1) and its multilayers is much larger than rGO (?4.4), while GO (?1.5) has the lowest quenching efficiency, which suggests that the graphitic structure is an important factor for quenching the fluorescence of QDs. It was also revealed that the QF of graphene is not strongly dependent on its thicknesses.

Guo, Xi Tao; Hua Ni, Zhen, E-mail: zhni@seu.edu.cn; Yan Nan, Hai; Hui Wang, Wen [Department of Physics and Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 211189 (China)] [Department of Physics and Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 211189 (China); Yan Liao, Chun [Physics Department, National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Base, Northwest University, Xi'an 710069 (China)] [Physics Department, National Photoelectric Technology and Functional Materials and Application of Science and Technology International Cooperation Base, Northwest University, Xi'an 710069 (China); Zhang, Yan; Wei Zhao, Wei [Jiangsu Key Laboratory for Design and Fabrication of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189 (China)] [Jiangsu Key Laboratory for Design and Fabrication of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189 (China)

2013-11-11T23:59:59.000Z

350

Quantum dots in bio-imaging: Revolution by the small  

SciTech Connect (OSTI)

Visual analysis of biomolecules is an integral avenue of basic and applied biological research. It has been widely carried out by tagging of nucleotides and proteins with traditional fluorophores that are limited in their application by features such as photobleaching, spectral overlaps, and operational difficulties. Quantum dots (QDs) are emerging as a superior alternative and are poised to change the world of bio-imaging and further its applications in basic and applied biology. The interdisciplinary field of nanobiotechnology is experiencing a revolution and QDs as an enabling technology have become a harbinger of this hybrid field. Within a decade, research on QDs has evolved from being a pure science subject to the one with high-end commercial applications.

Arya, Harinder [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Kaul, Zeenia [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Wadhwa, Renu [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Taira, Kazunari [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan); Hirano, Takashi [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, 7 Ibaraki 305-8562 (Japan); Kaul, Sunil C. [Gene Function Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562 (Japan)]. E-mail: s-kaul@aist.go.jp

2005-04-22T23:59:59.000Z

351

Valley pair qubits in double quantum dots of gapped graphene  

E-Print Network [OSTI]

The rise of graphene opens a new door to qubit implementation, as discussed in the recent proposal of valley pair qubits in double quantum dots of gapped graphene (Wu et al., arXiv: 1104.0443 [cond-mat.mes-hall]). The work here presents the comprehensive theory underlying the proposal. It discusses the interaction of electrons with external magnetic and electric fields in such structures. Specifically, it examines a strong, unique mechanism, i.e., the analogue of the 1st-order relativistic effect in gapped graphene. This mechanism is state mixing free and allows, together with the electrically tunable exchange coupling, a fast, all-electric manipulation of qubits via electric gates, in the time scale of ns. The work also looks into the issue of fault tolerance in a typical case, yielding at 10oK a long qubit coherence time (~O(ms)).

G. Y. Wu; N. -Y. Lue; L. Chang

2011-07-03T23:59:59.000Z

352

Ultra-low density InAs quantum dots  

SciTech Connect (OSTI)

We show that InAs quantum dots (QDs) can be grown by molecular beam epitaxy (MBE) with an ultralow density of sin 10{sup 7} cm{sup -2} without any preliminary or post-growth surface treatment. The strain-induced QD formation proceeds via the standard Stranski-Krastanow mechanism, where the InAs coverage is decreased to 1.3-1.5 monolayers (MLs). By using off-cut GaAs (100) substrates, we facilitate the island nucleation in this subcritical coverage range without any growth interruption. The QD density dependences on the InAs coverage are studied by photoluminescence, atomic force microscopy, transmission electron microscopy, and are well reproduced by the universal double exponential shapes. This method enables the fabrication of InAs QDs with controllable density in the range 10{sup 7}-10{sup 8} cm{sup -2}, exhibiting bright photoluminescence.

Dubrovskii, V. G., E-mail: dubrovskii@mail.ioffe.ru; Cirlin, G. E. [St. Petersburg Academic University Russian Academy of Sciences (Russian Federation)] [St. Petersburg Academic University Russian Academy of Sciences (Russian Federation); Brunkov, P. A. [Ioffe Physical Technical Institute Russian Academy of Sciences (Russian Federation)] [Ioffe Physical Technical Institute Russian Academy of Sciences (Russian Federation); Perimetti, U.; Akopyan, N. [Delft University of Technology, Quantum Transport, Kavli Institute of Nanoscience (Netherlands)] [Delft University of Technology, Quantum Transport, Kavli Institute of Nanoscience (Netherlands)

2013-10-15T23:59:59.000Z

353

Development of low-temperature solution-processed colloidal quantum dot-based solar cells  

E-Print Network [OSTI]

Solution-processed solar cells incorporating organic semiconductors and inorganic colloidal quantum dots (QDs) are potential alternatives to conventional solar cells fabricated via vacuum or high-temperature sintering ...

Chang, Liang-Yi, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

354

Efficient light emitting devices utilizing CdSe(ZnS) quantum dots in organic host matrices  

E-Print Network [OSTI]

We demonstrate efficient electroluminescence from thin film structures containing core-shell CdSe(ZnS) quantum dots dispersed in molecular organic host materials. In the most efficient devices, excitons are created on the ...

Coe-Sullivan, Seth (Seth Alexander)

2002-01-01T23:59:59.000Z

355

Luminescent, quantum dot-based anti-reflective coatings for crystalline silicon photovoltaics  

E-Print Network [OSTI]

This thesis demonstrates and evaluates the potential application of luminescent quantum dot/polymer solutions on crystalline silicon photovoltaics. After spin coating the QD/polymer onto silicon photodiodes, an increase ...

Bruer, Garrett (Garrett A.)

2010-01-01T23:59:59.000Z

356

Ligand Mediated Surface Reconstruction of Photoluminescent CdTe Quantum Dots.  

E-Print Network [OSTI]

??Enhancement of photoluminescence (PL) is observed for light-shielded dodecylamine-capped colloidal CdTe quantum dots (CdTe/DDA QDs) dispersed in toluene after washing and recapping. The PL quantum… (more)

Onnink, A.J.

2013-01-01T23:59:59.000Z

357

Compact biocompatible quantum dots via RAFT-mediated synthesis of imidazole-based random copolymer ligand  

E-Print Network [OSTI]

We present a new class of polymeric ligands for quantum dot (QD) water solubilization to yield biocompatible and derivatizable QDs with compact size (10?12 nm diameter), high quantum yields (>50%), excellent stability ...

Liu, Wenhao

358

Colloidal quantum-dot light-emitting diodes with metal-oxide charge  

E-Print Network [OSTI]

across the pixel area, and fabrication required the specialized deposition technique of energy-neutral over previously reported structures8,10 . Previous efforts at building colloidal quantum-dot (QD) LEDs concentrations and energy-band

359

Exchange Control of Nuclear Spin Diffusion in a Double Quantum Dot  

E-Print Network [OSTI]

The influence of gate-controlled two-electron exchange on the relaxation of nuclear polarization in small ensembles (N?10[superscript 6]) of nuclear spins is examined in a GaAs double quantum dot system. Waiting in the ...

Reilly, D. J.

360

Nuclear spin dynamics in double quantum dots: Fixed points, transients, and intermittency  

E-Print Network [OSTI]

Transport through spin-blockaded quantum dots provides a means for electrical control and detection of nuclear spin dynamics in the host material. Although such experiments have become increasingly popular in recent years, ...

Rudner, M. S.

Note: This page contains sample records for the topic "addthis dot harris" 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

Lateral heterojunction photodetector consisting of molecular organic and colloidal quantum dot thin films  

E-Print Network [OSTI]

exception being the dye- sensitized solar cell.3 Owing to its unique geometry, the present device also and that is sensitized across visible wavelengths by a thin film of colloidal CdSe nanocrystal quantum dots QDs . High

362

E-Print Network 3.0 - anisn format dot Sample Search Results  

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

the ANISN (Ref. 8), DOT (Ref. 9), and TWOTRAN (Ref. 10) codes. The continuous energy VIM Monte Carlo code... in Sec. VIII a r e derived from three- dimensional calculations....

363

Gain dynamics of quantum dot devices for dual-state operation  

SciTech Connect (OSTI)

Ground state gain dynamics of In(Ga)As-quantum dot excited state lasers are investigated via single-color ultrafast pump-probe spectroscopy below and above lasing threshold. Two-color pump-probe experiments are used to localize lasing and non-lasing quantum dots within the inhomogeneously broadened ground state. Single-color results yield similar gain recovery rates of the ground state for lasing and non-lasing quantum dots decreasing from 6 ps to 2 ps with increasing injection current. We find that ground state gain dynamics are influenced solely by the injection current and unaffected by laser operation of the excited state. This independence is promising for dual-state operation schemes in quantum dot based optoelectronic devices.

Kaptan, Y., E-mail: yuecel.kaptan@physik.tu-berlin.de; Herzog, B.; Kolarczik, M.; Owschimikow, N.; Woggon, U. [Institut für Optik und Atomare Physik, Technische Universität Berlin, Berlin (Germany); Schmeckebier, H.; Arsenijevi?, D.; Bimberg, D. [Institut für Festkörperphysik, Technische Universität Berlin, Berlin (Germany); Mikhelashvili, V.; Eisenstein, G. [Technion Institute of Technology, Faculty of Electrical Engineering, Haifa (Israel)

2014-06-30T23:59:59.000Z

364

The physics and chemistry of transport in CdSe quantum dot solids  

E-Print Network [OSTI]

Semiconductor quantum dots (QDs) have tunable opto-electronic properties and can be chemically synthesized and manipulated with ease, making them a promising novel material for many diverse applications. An understanding ...

Jarosz, Mirna, 1981-

2004-01-01T23:59:59.000Z

365

Electrical excitation of colloidally synthesized quantum dots in metal oxide structures  

E-Print Network [OSTI]

This thesis develops methods for integrating colloidally synthesized quantum dots (QDs) and metal oxides in optoelectronic devices, presents three distinct light emitting devices (LEDs) with metal oxides surrounding a QD ...

Wood, Vanessa Claire

2010-01-01T23:59:59.000Z

366

InGaAs Quantum Dots Coupled to a Reservoir of Nonequilibrium Free Carriers  

E-Print Network [OSTI]

We discuss the impact of a 2D-charged carrier reservoir for high-speed optical amplification and modulated lasing in quantum dot (QD)-based devices by testing the amplification of short trains of high power, femtosecond ...

Laemmlin, Matthias

367

E-Print Network 3.0 - alloy quantum dots Sample Search Results  

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

a dilute nitride: InAsNGaAsSb, GaInAsInP and In... . QUANTUM DOT INTERMEDIATE BAND SOLAR CELL MATERIAL SYSTEMS WITH NEGLIGIBLE VALENCE BAND OFFSETS Michael Y... ABSTRACT In...

368

Physica E 32 (2006) 1416 Tuning the cross-gap transition energy of a quantum dot  

E-Print Network [OSTI]

; Spectroscopy; Energy tuning Self-assembled semiconductor quantum dots (QDs) are of great interest for quantum resistance bridge circuit in combination with a lock in amplifier is used to measure the change in resistance

Ludwig-Maximilians-Universität, München

2006-01-01T23:59:59.000Z

369

Developing an array of site-controlled pyramidal quantum dots emitting polarization-entangled photons  

SciTech Connect (OSTI)

We present a site-controlled, highly symmetric quantum dot system with a density of at least 15 % of polarization-entangled photon emitters. Fidelity values of the entangled state as high as 0.721±0.043 were found.

Juska, G.; Dimastrodonato, V.; Mereni, L. O.; Gocalinska, A.; Pelucchi, E. [Tyndall National Institute, University College Cork, Lee Maltings, Cork (Ireland)

2013-12-04T23:59:59.000Z

370

Determination of energy scales in few-electron double quantum dots  

SciTech Connect (OSTI)

The capacitive couplings between gate-defined quantum dots and their gates vary considerably as a function of applied gate voltages. The conversion between gate voltages and the relevant energy scales is usually performed in a regime of rather symmetric dot-lead tunnel couplings strong enough to allow direct transport measurements. Unfortunately, this standard procedure fails for weak and possibly asymmetric tunnel couplings, often the case in realistic devices. We have developed methods to determine the gate voltage to energy conversion accurately in the different regimes of dot-lead tunnel couplings and demonstrate strong variations of the conversion factors. Our concepts can easily be extended to triple quantum dots or even larger arrays.

Taubert, D.; Ludwig, S. [Center for NanoScience and Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, Geschwister-Scholl-Platz 1, D-80539 Muenchen (Germany); Schuh, D. [Institut fuer Experimentelle Physik, Universitaet Regensburg, D-93040 Regensburg (Germany); Wegscheider, W. [Laboratory for Solid State Physics, ETH Zuerich, CH-8093 Zuerich (Switzerland)

2011-12-15T23:59:59.000Z

371

Quantum Dots Promise to Significantly Boost Solar Cell Efficiencies (Fact Sheet)  

SciTech Connect (OSTI)

In the search for a third generation of solar-cell technologies, a leading candidate is the use of 'quantum dots' -- tiny spheres of semiconductor material measuring only about 2-10 billionths of a meter in diameter. Quantum dots have the potential to dramatically increase the efficiency of converting sunlight into energy -- perhaps even doubling it in some devices -- because of their ability to generate more than one bound electron-hole pair, or exciton, per incoming photon. NREL has produced quantum dots using colloidal suspensions; then, using molecular self-assembly, they have been fabricated into the first-ever quantum-dot solar cells. While these devices operate with only 4.4% efficiency, they demonstrate the capability for low-cost manufacturing.

Not Available

2013-08-01T23:59:59.000Z

372

Efficiency loss mechanisms in colloidal quantum-dot light-emitting diodes  

E-Print Network [OSTI]

Saturated and tunable emission colors make colloidal quantum-dot light-emitting diodes (QD-LEDs) interesting for the next generation of display and lighting technologies. However, there still remain various hurdles to the ...

Shirasaki, Yasuhiro

2013-01-01T23:59:59.000Z

373

TxDOT Best Practices Model and Implementation Guide for Advance Planning Risk Analysis for  

E-Print Network [OSTI]

0-5478-P2 TxDOT Best Practices Model and Implementation Guide for Advance Planning Risk Analysis?....................................................................................................1 1.2 Advance Planning Risk Analysis...........................................................................................................11 3.4 Philosophy of Use

Texas at Austin, University of

374

Two-Photon Oxygen Sensing with Quantum Dot-Porphyrin Conjugates  

E-Print Network [OSTI]

Supramolecular assemblies of a quantum dot (QD) associated to palladium(II) porphyrins have been developed to detect oxygen (pO[subscript 2]) in organic solvents. Palladium porphyrins are sensitive in the 0–160 Torr range, ...

Lemon, Christopher M.

375

Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates  

E-Print Network [OSTI]

We report narrow-band absorption enhancement of semiconductor nanocrystals via Förster resonance energy transfer from cyanine J-aggregates. These J-aggregated dyes associate electrostatically with short quantum-dot (QD) ...

Walker, Brian J.

376

Theoretical study of intraband optical transitions in conduction band of dot-in-a-well system  

SciTech Connect (OSTI)

We study numerically absorption optical spectra of n-doped InAs/In{sub 015}Ga{sub 085}As/GaAs quantum dot-in-a-well systems. The absorption spectra are mainly determined by the size of a quantum dot and have weak dependence on the thickness of quantum well and position of the dot in a well. The dot-in-a-well system is sensitive to both in-plane and out-of-plane polarizations of the incident light with much stronger absorption intensities for the in-plane-polarized light. The absorption spectrum of in-plane-polarized light has also a multi-peak structure with two or three peaks of comparable intensities, while the absorption spectrum of out-of-plane polarized light has a single well-pronounced peak.

Chaganti, Venkata R.; Apalkov, Vadym [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30302 USA. (Georgia)] [Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30302 USA. (Georgia)

2014-02-15T23:59:59.000Z

377

Financial and Technical Resources for Completing Energy Efficiency Projects - The DOT/FTA Perspective  

E-Print Network [OSTI]

Financial and Technical Resources for Completing Energy Efficiency Projects ? The DOT/FTA Perspective Don Koski, FTA Region VI CATEE Conference November 9, 2011 ?FTA is part of the US DOT with a mission to support public transit through... of Transportation ? TIGER Grants ? FTA Programs ? FHWA Flex Funding ? United We Ride ? FHWA Livability Efforts ? State/Metro Planning ? Railroad Infrastructure U.S. Department of Agriculture ? Rural Efforts + Infrastructure Investment ?Urban/Rural...

Koski, D.

2011-01-01T23:59:59.000Z

378

(In,Mn)As quantum dots: Molecular-beam epitaxy and optical properties  

SciTech Connect (OSTI)

Self-assembled (In,Mn)As quantum dots are synthesized by molecular-beam epitaxy on GaAs (001) substrates. The experimental results obtained by transmission electron microscopy show that doping of the central part of the quantum dots with Mn does not bring about the formation of structural defects. The optical properties of the samples, including those in external magnetic fields, are studied.

Bouravleuv, A. D., E-mail: bour@mail.ioffe.ru; Nevedomskii, V. N. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Ubyivovk, E. V. [St. Petersburg State University (Russian Federation)] [St. Petersburg State University (Russian Federation); Sapega, V. F. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Khrebtov, A. I. [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation)] [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation); Samsonenko, Yu. B.; Cirlin, G. E.; Ustinov, V. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2013-08-15T23:59:59.000Z

379

Regulatory compliance guide for DOT-7A type A packaging design  

SciTech Connect (OSTI)

The purpose of this guide is to provide instruction for assuring that the regulatory design requirements for a DOT-7A Type A packaging are met. This guide also supports the testing and evaluation activities that are performed on new packaging designs by a DOE-approved test facility through the DOE`s DOT-7A Test Program. This Guide was updated to incorporate regulatory changes implemented by HM-169A (49 CFR, `Transportation`).

Kelly, D.L.

1996-06-04T23:59:59.000Z

380

Two photon luminescence from quantum dots using broad and narrowband ultrafast laser pulses  

E-Print Network [OSTI]

TWO PHOTON LUMINESCENCE FROM QUANTUM DOTS USING BROAD AND NARROWBAND ULTRAFAST LASER PULSES A Thesis by HARIBHASKAR BALASUBRAMANIAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2007 Major Subject: Biomedical Engineering TWO PHOTON LUMINESCENCE FROM QUANTUM DOTS USING BROAD AND NARROWBAND ULTRAFAST LASER PULSES A Thesis by HARIBHASKAR...

Balasubramanian, Haribhaskar

2008-10-10T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity  

E-Print Network [OSTI]

We demonstrate off-resonant coupling between a single quantum dot and a nanobeam photonic crystal cavity, under resonant excitation of the quantum dot or the cavity. These results are consistent with previous descriptions of off-resonant coupling as an incoherent phonon-mediated process. The extension of this phenomenon to a nanobeam photonic crystal cavity presents interesting possibilities for coherent control of this interaction by tailoring the phonon density of states.

Armand Rundquist; Arka Majumdar; Jelena Vuckovic

2011-10-05T23:59:59.000Z

382

Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system  

E-Print Network [OSTI]

We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak continuous-wave signal with a pulsed control beam, and then perform switching between two pulsed beams (40ps pulses) at the single photon level. Our results show that the quantum dot-nanocavity system creates strong, controllable interactions at the single photon level.

Dirk Englund; Arka Majumdar; Michal Bajcsy; Andrei Faraon; Pierre Petroff; Jelena vuckovic

2011-07-14T23:59:59.000Z

383

Effect of quantum dot position and background doping on the performance of quantum dot enhanced GaAs solar cells  

SciTech Connect (OSTI)

The effect of the position of InAs quantum dots (QD) within the intrinsic region of pin-GaAs solar cells is reported. Simulations suggest placing the QDs in regions of reduced recombination enables a recovery of open-circuit voltage (V{sub OC}). Devices with the QDs placed in the center and near the doped regions of a pin-GaAs solar cell were experimentally investigated. While the V{sub OC} of the emitter-shifted device was degraded, the center and base-shifted devices exhibited V{sub OC} comparable to the baseline structure. This asymmetry is attributed to background doping which modifies the recombination profile and must be considered when optimizing QD placement.

Driscoll, Kristina, E-mail: kmdsps@rit.edu; Bennett, Mitchell F.; Polly, Stephen J.; Forbes, David V.; Hubbard, Seth M., E-mail: smhsps@rit.edu [NanoPower Research Laboratories, Rochester Institute of Technology, Rochester, New York (United States)

2014-01-13T23:59:59.000Z

384

A comparison between semi-spheroid- and dome-shaped quantum dots coupled to wetting layer  

SciTech Connect (OSTI)

During the epitaxial growth method, self-assembled semi-spheroid-shaped quantum dots (QDs) are formed on the wetting layer (WL). However for sake of simplicity, researchers sometimes assume semi-spheroid-shaped QDs to be dome-shaped (hemisphere). In this work, a detailed and comprehensive study on the difference between electronic and transition properties of dome- and semi-spheroid-shaped quantum dots is presented. We will explain why the P-to-S intersubband transition behaves the way it does. The calculated results for intersubband P-to-S transition properties of quantum dots show two different trends for dome-shaped and semi-spheroid-shaped quantum dots. The results are interpreted using the probability of finding electron inside the dome/spheroid region, with emphasis on the effects of wetting layer. It is shown that dome-shaped and semi-spheroid-shaped quantum dots feature different electronic and transition properties, arising from the difference in lateral dimensions between dome- and semi-spheroid-shaped QDs. Moreover, an analogy is presented between the bound S-states in the quantum dots and a simple 3D quantum mechanical particle in a box, and effective sizes are calculated. The results of this work will benefit researchers to present more realistic models of coupled QD/WL systems and explain their properties more precisely.

Shahzadeh, Mohammadreza; Sabaeian, Mohammad, E-mail: Sabaeian@scu.ac.ir [Physics Department, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, 61357-43135 (Iran, Islamic Republic of)

2014-06-15T23:59:59.000Z

385

Engineering of quantum dot photon sources via electro-elastic fields  

E-Print Network [OSTI]

The possibility to generate and manipulate non-classical light using the tools of mature semiconductor technology carries great promise for the implementation of quantum communication science. This is indeed one of the main driving forces behind ongoing research on the study of semiconductor quantum dots. Often referred to as artificial atoms, quantum dots can generate single and entangled photons on demand and, unlike their natural counterpart, can be easily integrated into well-established optoelectronic devices. However, the inherent random nature of the quantum dot growth processes results in a lack of control of their emission properties. This represents a major roadblock towards the exploitation of these quantum emitters in the foreseen applications. This chapter describes a novel class of quantum dot devices that uses the combined action of strain and electric fields to reshape the emission properties of single quantum dots. The resulting electro-elastic fields allow for control of emission and binding energies, charge states, and energy level splittings and are suitable to correct for the quantum dot structural asymmetries that usually prevent these semiconductor nanostructures from emitting polarization-entangled photons. Key experiments in this field are presented and future directions are discussed.

Rinaldo Trotta; Armando Rastelli

2015-03-01T23:59:59.000Z

386

National Air & Space Intelligence Center Holds Program About...  

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

Intelligence Agency Support Team in September 2013. Photo by National Air and Space Intelligence Center. Dot Harris, Director of the Office of Economic Impact and...

387

Staff | Department of Energy  

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

a member of the Savannah River Special Emphasis Planning Committee, meets with Dot Harris at the site's Women's Equality Day Celebration. | Photo by Rob Davis, Savannah River...

388

Applications are Open for YOU to Join the 2013 Class of the Minority...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Creating Educational Opportunities for Minorities in STEM Joining Director Dot Harris (second from left) were Marlene Kaplan, the Deputy Director of Education and director...

389

Blog Archive | Department of Energy  

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

July 18, 2012 Dot Harris speaking live to WBIR, a local Knoxville television station, the morning of the Energy DepartmentNational Nuclear Security Administration Small Business...

390

Savannah River National Laboratory Meets with Historically Black...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Share Research with EM Laboratory in Successful Exchange Joining Director Dot Harris (second from left) were Marlene Kaplan, the Deputy Director of Education and director...

391

Find Your STEM Role Model: Google+ Hangout | Department of Energy  

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

a conversation for students, teachers, parents, and STEM educators. Director Dot Harris, Office of Economic Impact and Diversity at the Department of Energy, will be on the...

392

Enhanced Two-Photon Processes in Quantum Dots inside Photonic Crystal Nanocavities and Quantum Information Processing Applications  

E-Print Network [OSTI]

We show that the two-photon transition rates of quantum dots coupled to nanocavities are enhanced by up to 8 orders of magnitude relative to quantum dots in bulk host. We then propose how to take advantage of this enhancement to implement coherent quantum dot excitation by two-photon absorption, entangled photon pair generation by two-photon spontaneous emission, and single-photon generation at telecommunication wavelengths by two-photon stimulated and spontaneous emission.

Ziliang Lin; Jelena Vuckovic

2009-07-02T23:59:59.000Z

393

Electrically driven single photon emission from a CdSe/ZnSSe single quantum dot at 200?K  

SciTech Connect (OSTI)

High temperature operation of an electrically driven single photon emitter based on a single epitaxial quantum dot is reported. CdSe/ZnSSe/MgS quantum dots are embedded into a p-i-n diode architecture providing almost background free excitonic and biexcitonic electroluminescence from individual quantum dots through apertures in the top contacts. Clear antibunching with g{sup 2}(??=?0)?=?0.28?±?0.20 can be tracked up to T?=?200?K, representing the highest temperature for electrically triggered single photon emission from a single quantum dot device.

Quitsch, Wolf; Kümmell, Tilmar; Bacher, Gerd [Werkstoffe der Elektrotechnik and CENIDE, Universität Duisburg-Essen, Bismarckstraße 81, 47057 Duisburg (Germany); Gust, Arne; Kruse, Carsten; Hommel, Detlef [Institut für Festkörperphysik, Universität Bremen, Otto-Hahn-Allee 1, 28334 Bremen (Germany)

2014-09-01T23:59:59.000Z

394

Impact of heavy hole-light hole coupling on optical selection rules in GaAs quantum dots  

SciTech Connect (OSTI)

We report strong heavy hole-light hole mixing in GaAs quantum dots grown by droplet epitaxy. Using the neutral and charged exciton emission as a monitor we observe the direct consequence of quantum dot symmetry reduction in this strain free system. By fitting the polar diagram of the emission with simple analytical expressions obtained from k{center_dot}p theory we are able to extract the mixing that arises from the heavy-light hole coupling due to the geometrical asymmetry of the quantum dot.

Belhadj, T.; Amand, T.; Kunz, S.; Marie, X.; Urbaszek, B. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); Kunold, A. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); Departamento de Ciencias Basicas, UAM-A, Col. Reynosa Tamaulipas, 02200 Mexico D.F. (Mexico); Simon, C.-M. [INSA-CNRS-UPS, LPCNO, Universite de Toulouse, 135 Av. Rangueil, 31077 Toulouse (France); CNRS-UPS, LCAR, IRSAMC, Universite de Toulouse, 31062 Toulouse (France); Kuroda, T.; Abbarchi, M.; Mano, T.; Sakoda, K. [National Institute for Material Science, Namiki 1-1, Tsukuba 305-0044 (Japan)

2010-08-02T23:59:59.000Z

395

Effect of shells on photoluminescence of aqueous CdTe quantum dots  

SciTech Connect (OSTI)

Graphical abstract: Size-tunable CdTe coated with several shells using an aqueous solution synthesis. CdTe/CdS/ZnS quantum dots exhibited high PL efficiency up to 80% which implies the promising applications for biomedical labeling. - Highlights: • CdTe quantum dots were fabricated using an aqueous synthesis. • CdS, ZnS, and CdS/ZnS shells were subsequently deposited on CdTe cores. • Outer ZnS shells provide an efficient confinement of electron and hole inside the QDs. • Inside CdS shells can reduce the strain on the QDs. • Aqueous CdTe/CdS/ZnS QDs exhibited high stability and photoluminescence efficiency of 80%. - Abstract: CdTe cores with various sizes were fabricated in aqueous solutions. Inorganic shells including CdS, ZnS, and CdS/ZnS were subsequently deposited on the cores through a similar aqueous procedure to investigate the effect of shells on the photoluminescence properties of the cores. In the case of CdTe/CdS/ZnS quantum dots, the outer ZnS shell provides an efficient confinement of electron and hole wavefunctions inside the quantum dots, while the middle CdS shell sandwiched between the CdTe core and ZnS shell can be introduced to obviously reduce the strain on the quantum dots because the lattice parameters of CdS is situated at the intermediate-level between those of CdTe and ZnS. In comparison with CdTe/ZnS core–shell quantum dots, the as-prepared water-soluble CdTe/CdS/ZnS quantum dots in our case can exhibit high photochemical stability and photoluminescence efficiency up to 80% in an aqueous solution, which implies the promising applications in the field of biomedical labeling.

Yuan, Zhimin; Yang, Ping, E-mail: mse_yangp@ujn.edu.cn

2013-07-15T23:59:59.000Z

396

Using quantum dots to tag subsurface damage in lapped and polished glass samples  

SciTech Connect (OSTI)

Grinding, lapping, and polishing are finishing processes used to achieve critical surface parameters in a variety of precision optical and electronic components. As these processes remove material from the surface through mechanical and chemical interactions, they may induce a damaged layer of cracks, voids, and stressed material below the surface. This subsurface damage (SSD) can degrade the performance of a final product by creating optical aberrations due to diffraction, premature failure in oscillating components, and a reduction in the laser induced damage threshold of high energy optics. As these defects lie beneath the surface, they are difficult to detect, and while many methods are available to detect SSD, they can have notable limitations regarding sample size and type, preparation time, or can be destructive in nature. The authors tested a nondestructive method for assessing SSD that consisted of tagging the abrasive slurries used in lapping and polishing with quantum dots (nano-sized fluorescent particles). Subsequent detection of fluorescence on the processed surface is hypothesized to indicate SSD. Quantum dots that were introduced to glass surfaces during the lapping process were retained through subsequent polishing and cleaning processes. The quantum dots were successfully imaged by both wide field and confocal fluorescence microscopy techniques. The detected fluorescence highlighted features that were not observable with optical or interferometric microscopy. Atomic force microscopy and additional confocal microscope analysis indicate that the dots are firmly embedded in the surface but do not appear to travel deep into fractures beneath the surface. Etching of the samples exhibiting fluorescence confirmed that SSD existed. SSD-free samples exposed to quantum dots did not retain the dots in their surfaces, even when polished in the presence of quantum dots.

Williams, Wesley B.; Mullany, Brigid A.; Parker, Wesley C.; Moyer, Patrick J.; Randles, Mark H.

2009-09-20T23:59:59.000Z

397

PROPERTIES OF UMBRAL DOTS FROM STRAY LIGHT CORRECTED HINODE FILTERGRAMS  

SciTech Connect (OSTI)

High-resolution blue continuum filtergrams from Hinode are employed to study the umbral fine structure of a regular unipolar sunspot. The removal of scattered light from the images increases the rms contrast by a factor of 1.45 on average. Improvement in image contrast renders identification of short filamentary structures resembling penumbrae that are well separated from the umbra-penumbra boundary and comprise bright filaments/grains flanking dark filaments. Such fine structures were recently detected from ground-based telescopes and have now been observed with Hinode. A multi-level tracking algorithm was used to identify umbral dots (UDs) in both the uncorrected and corrected images and to track them in time. The distribution of the values describing the photometric and geometric properties of UDs is more easily affected by the presence of stray light while it is less severe in the case of kinematic properties. Statistically, UDs exhibit a peak intensity, effective diameter, lifetime, horizontal speed, and a trajectory length of 0.29I{sub QS}, 272 km, 8.4 minutes, 0.45 km s{sup -1}, and 221 km, respectively. The 2 hr 20 minute time sequence depicts several locations where UDs tend to appear and disappear repeatedly with various time intervals. The correction for scattered light in the Hinode filtergrams facilitates photometry of umbral fine structure, which can be related to results obtained from larger telescopes and numerical simulations.

Louis, Rohan E.; Mathew, Shibu K.; Bayanna, A. Raja [Udaipur Solar Observatory, Physical Research Laboratory, Dewali, Badi Road, Udaipur, Rajasthan 313004 (India); Rubio, Luis R. Bellot [Instituto de Astrofisica de Andalucia (CSIC), Apartado de Correos 3004, 18080 Granada (Spain); Ichimoto, Kiyoshi [Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8417 (Japan); Ravindra, B., E-mail: eugene@prl.res.in [Indian Institute of Astrophysics, II Block, Koramangla, Bangalore 560034 (India)

2012-06-20T23:59:59.000Z

398

Quantum Dot Solar Cells: High Efficiency through Multiple Exciton Generation  

SciTech Connect (OSTI)

Impact ionization is a process in which absorbed photons in semiconductors that are at least twice the bandgap can produce multiple electron-hole pairs. For single-bandgap photovoltaic devices, this effect produces greatly enhanced theoretical thermodynamic conversion efficiencies that range from 45-85%, depending upon solar concentration, the cell temperature, and the number of electron-hole pairs produced per photon. For quantum dots (QDs), electron-hole pairs exist as excitons. We have observed astoundingly efficient multiple exciton generation (MEG) in QDs of PbSe (bulk Eg = 0.28 eV), ranging in diameter from 3.9 to 5.7nm (Eg = 0.73, 0.82, and 0.91 eV, respectively). The effective masses of electron and holes are about equal in PbSe, and the onset for efficient MEG occurs at about three times the QD HOMO-LUMO transition (its ''bandgap''). The quantum yield rises quickly after the onset and reaches 300% at 4 x Eg (3.64 eV) for the smallest QD; this means that every QD in the sample produces three electron-hole pairs/photon.

Hanna, M. C.; Ellingson, R. J.; Beard, M.; Yu, P.; Micic, O. I.; Nozik, A. J.; c.

2005-01-01T23:59:59.000Z

399

Ultrafast dynamics of strongly coupled quantum dot-nanocavity systems  

E-Print Network [OSTI]

We investigate the influence of exciton-phonon coupling on the dynamics of a strongly coupled quantum dot-photonic crystal cavity system and explore the effects of this interaction on different schemes for non-classical light generation. By performing time-resolved measurements, we map out the detuning-dependent polariton lifetime and extract the spectrum of the polariton-to-phonon coupling. Photon-blockade experiments are presented for different pulse-length and detuning conditions that are in very good agreement with quantum-optical simulations; we demonstrate that achieving high-fidelity photon blockade requires an intricate understanding of this parameter space. Furthermore, we show that detuned photon blockade, which is more efficient than resonant photon blockade, is also more dramatically affected by phonons. Finally, we achieve coherent control of the polariton states of a strongly coupled system and demonstrate that their efficient coupling to phonons can be exploited for novel concepts in high-fidelity single photon generation.

Kai Müller; Kevin A. Fischer; Armand Rundquist; Constantin Dory; Konstantinos G. Lagoudakis; Tomas Sarmiento; Victoria Borish; Yousif A. Kelaita; Jelena Vu?kovi?

2015-03-18T23:59:59.000Z

400

The impact of disorder on charge transport in three dimensional quantum dot resonant tunneling structures  

SciTech Connect (OSTI)

Efficient iso-entropic energy filtering of electronic waves can be realized through nanostructures with three dimensional confinement, such as quantum dot resonant tunneling structures. Large-area deployment of such structures is useful for energy selective contacts but such configuration is susceptible to structural disorders. In this work, the transport properties of quantum-dot-based wide-area resonant tunneling structures, subject to realistic disorder mechanisms, are studied. Positional variations of the quantum dots are shown to reduce the resonant transmission peaks while size variations in the device are shown to reduce as well as broaden the peaks. Increased quantum dot size distribution also results in a peak shift to lower energy which is attributed to large dots dominating transmission. A decrease in barrier thickness reduces the relative peak height while the overall transmission increases dramatically due to lower “series resistance.” While any shift away from ideality can be intuitively expected to reduce the resonance peak, quantification allows better understanding of the tolerances required for fabricating structures based on resonant tunneling phenomena/.

Puthen-Veettil, B., E-mail: b.puthen-veettil@unsw.edu.au; Patterson, R.; König, D.; Conibeer, G.; Green, M. A. [Australian Centre for Advanced Photovoltaics, UNSW, Sydney 2052 (Australia)

2014-10-28T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Tunnel-injection GaN quantum dot ultraviolet light-emitting diodes  

SciTech Connect (OSTI)

We demonstrate a GaN quantum dot ultraviolet light-emitting diode that uses tunnel injection of carriers through AlN barriers into the active region. The quantum dot heterostructure is grown by molecular beam epitaxy on AlN templates. The large lattice mismatch between GaN and AlN favors the formation of GaN quantum dots in the Stranski-Krastanov growth mode. Carrier injection by tunneling can mitigate losses incurred in hot-carrier injection in light emitting heterostructures. To achieve tunnel injection, relatively low composition AlGaN is used for n- and p-type layers to simultaneously take advantage of effective band alignment and efficient doping. The small height of the quantum dots results in short-wavelength emission and are simultaneously an effective tool to fight the reduction of oscillator strength from quantum-confined Stark effect due to polarization fields. The strong quantum confinement results in room-temperature electroluminescence peaks at 261 and 340 nm, well above the 365 nm bandgap of bulk GaN. The demonstration opens the doorway to exploit many varied features of quantum dot physics to realize high-efficiency short-wavelength light sources.

Verma, Jai; Kandaswamy, Prem Kumar; Protasenko, Vladimir; Verma, Amit; Grace Xing, Huili; Jena, Debdeep [Department of Electrical Engineering, University of Notre Dame, Indiana 46556 (United States)] [Department of Electrical Engineering, University of Notre Dame, Indiana 46556 (United States)

2013-01-28T23:59:59.000Z

402

Double-Dot Quantum Ratchet Driven by an Independently Biased Quantum Point Contact V. S. Khrapai,1,2  

E-Print Network [OSTI]

Double-Dot Quantum Ratchet Driven by an Independently Biased Quantum Point Contact V. S. Khrapai,1 of the two quantum dots. The results are interpreted in terms of a quantum ratchet phenomenon in a DQD possessing current be- cause of broken spatial symmetry, so-called ratchets, ap- pear in a variety

Ludwig-Maximilians-Universität, München

403

Absorption spectra of CdSe-ZnS core-shell quantum dots at high photon energies : experiment and modeling  

E-Print Network [OSTI]

Absorption spectra of CdSe-ZnS core-shell quantum dots at high photon energies : experiment spectra of CdSe-ZnS core-shell quantum dot (QD) ensembles, with average core diameters ranging from 2.6 nm. In agreement with previous reports, the absorption coefficient at energies 1 eV above the effective bandgap

Ghosh, Sandip

404

Analysis of the reduced thermal conductivity in InGaAs/GaAs quantum dot lasers from chirp characteristics  

E-Print Network [OSTI]

injection which we term "thermal impact" , the ther- mal conductivity of the active region is estimatedAnalysis of the reduced thermal conductivity in InGaAs/GaAs quantum dot lasers from chirp; published online 21 September 2006 The thermal conductivity of self-organized quantum dot QD active regions

Klotzkin, David

405

Femtosecond gain and index dynamics in an InAs/InGaAsP quantum dot amplifier  

E-Print Network [OSTI]

Femtosecond gain and index dynamics in an InAs/InGaAsP quantum dot amplifier operating at 1.55 µm and refractive index dynamics of an InAs/InGaAsP self-assembled quantum dot semiconductor optical amplifier (SOA-carrier absorption and stimulated transition processes. ©2006 Optical Society of America OCIS codes: (320

Mojahedi, Mohammad

406

Microsphere Light-Scattering Layer Assembled by ZnO Nanosheets for the Construction of High Efficiency (>5%) Quantum Dots  

E-Print Network [OSTI]

performance solar cells for sustainable energy sources to replace fossil fuels has become an urgent subject for CdS/CdSe quantum dot cosensitized solar cells (QDSCs) with a power conversion efficiency (PCE Efficiency (>5%) Quantum Dots Sensitized Solar Cells Jianjun Tian,*, Lili Lv, Xuyang Wang, Chengbin Fei

Cao, Guozhong

407

Local Agency Project Manager Checklist The steps below follow those outlined in the Mn/DOT Utility Manual. A PDF of the manual  

E-Print Network [OSTI]

Form Contact utility owners Utility Contact List available at http://www.dot.state.mn.us/utility/files/pdf/contacts/contact-utilityLocal Agency Project Manager Checklist The steps below follow those outlined in the Mn/DOT Utility Manual. A PDF of the manual and supporting documents are available at: http://www.dot.state.mn.us/utility

Minnesota, University of

408

Showcasing the research of quantum dot sensitized solar cells from Prof. J.J.Tian's and Prof. G.Z.Cao's lab,  

E-Print Network [OSTI]

. Introduction Quantum dot sensitized solar cells (QDSCs) can be regarded as a derivative of dye-sensitized solarShowcasing the research of quantum dot sensitized solar cells from Prof. J.J.Tian's and Prof. G cells A hierarchical structure of ZnO/TiO2 nanocable photoanode for quantum dot sensitized solar cells

Cao, Guozhong

409

Near-infrared peptide-coated quantum dots for small animal imaging Gopal Iyer, Jack J. Li, Fabien Pinaud, James M. Tsay, Laurent A. Bentolila, Xavier  

E-Print Network [OSTI]

Near-infrared peptide-coated quantum dots for small animal imaging Gopal Iyer, Jack J. Li, Fabien ABSTRACT We have synthesized high quality type-II CdTe/CdSe near infrared quantum dots using successive ion used a peptide coating technique on type-II and commercial near infrared quantum dots for delivery

Michalet, Xavier

410

Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement  

E-Print Network [OSTI]

We theoretically study the nuclear spin dynamics driven by electron transport and hyperfine interaction in an electrically-defined double quantum dot (DQD) in the Pauli-blockade regime. We derive a master-equation-based framework and show that the coupled electron-nuclear system displays an instability towards the buildup of large nuclear spin polarization gradients in the two quantum dots. In the presence of such inhomogeneous magnetic fields, a quantum interference effect in the collective hyperfine coupling results in sizable nuclear spin entanglement between the two quantum dots in the steady state of the evolution. We investigate this effect using analytical and numerical techniques, and demonstrate its robustness under various types of imperfections.

Martin J. A. Schuetz; Eric M. Kessler; Lieven M. K. Vandersypen; J. Ignacio Cirac; Geza Giedke

2014-05-30T23:59:59.000Z

411

Photoinduced band filling in strongly confined colloidal PbS quantum dots  

SciTech Connect (OSTI)

Increase in continuous wave laser excitation (6?W/cm{sup 2} to 120?W/cm{sup 2}) of colloidal PbS quantum dots in the strongly quantized regime (diameters 2.0?nm and 4.7?nm) deposited on semi-insulating GaAs and glass causes a clear blue shift (0.019?eV and 0.080?eV) of the emission spectra. Proof of the applicability of a dynamic three-dimensional band filling model is the significance of the presented results and demonstrates the effective electronic coupling in quantum dot arrays similar to superlattices. The work also reveals the influence of quantum dot sizes on photo-doping effects.

Ullrich, B., E-mail: bruno@fis.unam.mx [Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210 (Mexico); Ullrich Photonics LLC, Wayne, Ohio 43466 (United States); Xi, H. [Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403-0209 (United States); Wang, J. S. [Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson AFB, Ohio 45433-7707 (United States)

2014-06-21T23:59:59.000Z

412

Design of quantum dot lattices in amorphous matrices by ion beam irradiation  

SciTech Connect (OSTI)

We report on the highly controllable self-assembly of semiconductor quantum dots and metallic nanoparticles in a solid amorphous matrix, induced by ion beam irradiation of an amorphous multilayer. We demonstrate experimentally and theoretically a possibility to tune the basic structural properties of the quantum dots in a wide range. Furthermore, the sizes, distances, and arrangement type of the quantum dots follow simple equations dependent on the irradiation and the multilayer properties. We present a Monte Carlo model for the simulation and prediction of the structural properties of the materials formed by this method. The presented results enable engineering and simple production of functional materials or simple devices interesting for applications in nanotechnology.

Buljan, M.; Bogdanovic-Radovic, I.; Karlusic, M.; Desnica, U. V.; Radic, N.; Jaksic, M.; Salamon, K.; Drazic, G.; Bernstorff, S.; Holy, V. [Rudjer Boskovic Institute, Bijenicka cesta 54, HR-10000 Zagreb (Croatia); Institute of Physics, Bijenicka cesta 46, HR-10000 Zagreb (Croatia); Jozef Stefan Institute, Jamova 39, SLO-1000 Ljubljana (Slovenia); Sincrotrone Trieste, I-34149 Basovizza (Italy); Charles University in Prague, CZ-12116 Prague (Czech Republic)

2011-10-15T23:59:59.000Z

413

High-brightness single photon source from a quantum dot in a directional-emission nanocavity  

E-Print Network [OSTI]

We analyze a single photon source consisting of an InAs quantum dot coupled to a directional-emission photonic crystal (PC) cavity implemented in GaAs. On resonance, the dot's lifetime is reduced by more than 10 times, to 45ps. Compared to the standard three-hole defect cavity, the perturbed PC cavity design improves the collection efficiency into an objective lens (NA=0.75) by factor 6, and improves the coupling efficiency of the collected light into a single mode fiber by factor 1.9. The emission frequency is determined by the cavity mode, which is antibunched to g(2)=0.05. The cavity design also enables efficient coupling to a higher-order cavity mode for local optical excitation of cavity-coupled quantum dots.

Mitsuru Toishi; Dirk Englund; Andrei Faraon; Jelena Vuckovic

2009-04-08T23:59:59.000Z

414

Distinctive Signature of Indium Gallium Nitride Quantum Dot Lasing in Microdisks Cavities  

E-Print Network [OSTI]

Low threshold lasers realized within compact, high quality optical cavities enable a variety of nanophotonics applications. Gallium nitride (GaN) materials containing indium gallium nitride (InGaN) quantum dots and quantum wells offer an outstanding platform to study light matter interactions and realize practical devices such as efficient light emitting diodes and nanolasers. Despite progress in the growth and characterization of InGaN quantum dots, their advantages as the gain medium in low threshold lasers have not been clearly demonstrated. This work seeks to better understand the reasons for these limitations by focusing on the simpler, limited-mode microdisk cavities, and by carrying out comparisons of lasing dynamics in those cavities using varying gain media including InGaN quantum wells, fragmented quantum wells, and a combination of fragmented quantum wells with quantum dots. For each gain medium, we utilize the distinctive, high quality (Q~5500) modes of the cavities, and the change in the highest ...

Woolf, Alexander; Aharanovich, Igor; Zhu, Tongtong; Niu, Nan; Wang, Danqing; Oliver, Rachel A; Hu, Evelyn L

2014-01-01T23:59:59.000Z

415

Monolithic phosphor-free InGaN/GaN quantum dot wavelength converter white light emitting diodes  

SciTech Connect (OSTI)

We report the characteristics of phosphor-free self-organized InGaN/GaN quantum dot wavelength converter white light emitting diodes grown by plasma assisted molecular beam epitaxy. The exciting quantum dots, in which electrically injected carriers recombine, are blue-emitting and the converter dots are red-emitting. We have studied the effect of tuning the number of dot layers and the peak emission wavelength of the exciting and converter dots on the nature of the emitted white light, in terms of the chromaticity coordinates and correlated color temperature. Depending on the values of these wavelengths, color temperatures in the range of 4420–6700?K have been derived at a current density of 45?A/cm{sup 2} across multiple devices. The variation of the color temperature with change in injection current is found to be very small.

Jahangir, Shafat; Bhattacharya, Pallab, E-mail: pkb@eecs.umich.edu [Center for Photonics and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States); Pietzonka, Ines; Strassburg, Martin [OSRAM Opto Semiconductors GmbH, Leibnizstrasse 4, Regensburg (Germany)

2014-09-15T23:59:59.000Z

416

AUTHORIZING THE DOT SPECIFICATION 6M PACKAGING FOR CONTINUED USE AT THE SAVANNAH RIVER SITE  

SciTech Connect (OSTI)

The U.S. Department of Transportation (DOT) Specification 6M packaging was in extensive use for more than 40 years for in-commerce shipments of Type B quantities of fissile and radioactive material (RAM) across the USA, among the Department of Energy (DOE) laboratories, and between facilities in the DOE production complex. In January 2004, the DOT Research and Special Programs Administration (RSPA) Agency issued a final rule in the Federal Register to ammend requirements in the Hazardous Materials Regulations (HMR) pertaining to the transportation of radioactive materials. The final rule became effective on October 1, 2004. One of those changes discontinued the use of the DOT specification 6M, along with other DOT specification packagings, on October 1, 2008. A main driver for the change was due to the fact that 6M specification packagings were not supported by a Safety Analysis Report for Packagings (SARP) that was compliant with Title 10 of the Code of Federal Regulations (CFR) Part 71 (10 CFR 71). The regulatory rules for the discontinued use have been edited in Title 49 of the CFR Parts 100-185, 2004 edition and thereafter. Prior to October 1, 2008, the use of the 6M within the boundaries of the Savannah River Site (SRS), called an onsite transfer, was governed by an onsite transportation document that referenced 49 CFR Parts 100-185. SRS had to develop an Onsite Safety Assessment (OSA) which was independent of 49 CFR in order to justify the continued use of the DOT Specification 6M for the transfer of radioactive material (RAM) at the SRS after October 1, 2008. This paper will discuss the methodology for and difficulties associated with authorizing the DOT Specification 6M Packaging for continued use at the Savannah River Site.

Watkins, R.; Loftin, B.; Hoang, D.

2010-03-04T23:59:59.000Z

417

Test and evaluation document for DOT Specification 7A Type A Packaging. Revision 3  

SciTech Connect (OSTI)

The US Department of Energy (DOE) has been conducting, through several of its operating contractors, an evaluation and testing program to qualify Type A radioactive material packagings per US Department of Transportation (DOT) Specification 7A (DOT-7A) of the Code of Federal Regulations (CFR), Title 49, Part 178 (49 CFR 178). The program is currently administered by the DOE, Office of Facility Safety Analysis, DOE/EH-32, at DOE-Headquarters (DOE-HQ) in Germantown, Maryland. This document summarizes the evaluation and testing performed for all of the packagings successfully qualified in this program.

NONE

1996-01-30T23:59:59.000Z

418

Noise-Protected Gate for Six-Electron Double-Dot Qubits  

E-Print Network [OSTI]

Singlet-triplet spin qubits in six-electron double quantum dots, in moderate magnetic fields, can show superior immunity to charge noise. This immunity results from the symmetry of orbitals in the second energy shell of circular quantum dots: singlet and triplet states in this shell have identical charge distributions. Our phase-gate simulations, which include $1/f$ charge noise from fluctuating traps, show that this symmetry is most effectively exploited if the gate operation switches rapidly between sweet spots deep in the (3,3) and (4,2) charge stability regions; fidelities very close to one are predicted if subnanosecond switching can be performed.

Sebastian Mehl; David P. DiVincenzo

2014-08-05T23:59:59.000Z

419

Observation of the Kondo effect in a spin-3/2 hole quantum dot  

SciTech Connect (OSTI)

We report the observation of the Kondo effect in a spin-3/2 hole quantum dot formed near pinch-off in a GaAs quantum wire. We clearly observe two distinctive hallmarks of quantum dot Kondo physics. First, the zero-bias peak in the differential conductance splits an in-plane magnetic field and the splitting is independent of gate voltage. Second, the splitting rate is twice as large as that for the lowest one-dimensional subband. We show that the Zeeman splitting of the zero-bias peak is highly anisotropic and attribute this to the strong spin-orbit interaction for holes in GaAs.

Klochan, O.; Micolich, A. P.; Hamilton, A. R. [School of Physics, University of New South Wales, Sydney NSW 2052 (Australia); Trunov, K.; Reuter, D.; Wieck, A. D. [Angewandte Festkörperphysik, Ruhr-Universität Bochum, D-44780 Bochum (Germany)

2013-12-04T23:59:59.000Z

420

Fast Electrical Control of a Quantum Dot Strongly Coupled to a Nano-resonator  

E-Print Network [OSTI]

The resonance frequency of an InAs quantum dot strongly coupled to a GaAs photonic crystal cavity was electrically controlled via quantum confined Stark effect. Stark shifts up to 0.3meV were achieved using a lateral Schottky electrode that created a local depletion region at the location of the quantum dot. We report switching of a probe laser coherently coupled to the cavity up to speeds as high as 150MHz, limited by the RC constant of the transmission line. The coupling rate and the magnitude of the Stark shift with electric field were investigated while coherently probing the system.

Andrei Faraon; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2009-06-03T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Growth and optical characterization of multilayers of InGaN quantum dots  

E-Print Network [OSTI]

carried out using a two photon excitation technique employing a picosecond mode-locked Ti-sapphire laser emitting at 790 nm. Samples were mounted in a cold -finger cryostat that could be cooled down to 4.2 K and the laser was focused through a microscope... GaN quantum dots Article Type: Research Paper Section/Category: General subjects Keywords: B2. InGaN quantum dots; A1. Photoluminescence; B1. Nitrides; A3. Metal-organic vapour phase epitaxy Corresponding Author: Dr Tongtong Zhu, Ph...

Zhu, Tontong; El-Ella, Haitham; Reid, Benjamin; Holmes, Mark; Taylor, Robert; Kappers, Menno; Oliver, Rachel

2012-01-01T23:59:59.000Z

422

Spin Dynamics in Two-Dimensional Arrays of Quantum Dots with Local Ordering of Nanoclusters  

SciTech Connect (OSTI)

Electron paramagnetic resonance (EPR) is used to probe the spin dynamics in two-dimensional (2D) quantum dot (QD) arrays with local ordering of nanoclusters. A careful examination of EPR line shape, width and g-factor values allow us to attribute this signal to the electrons localized in the strain-induced potential wells in Si in the vicinity of the Ge dots. The strong orientation dependence of EPR line width is defined by changing localization degree of electrons at different magnetic field directions. The theoretical approximation of orientation dependence of EPR line width allows estimating the effective radius of electron localization, as {approx}80 nm.

Zinovieva, A. F.; Dvurechenskii, A. V.; Stepina, N. P.; Nikiforov, A. I.; Lyubin, A. S. [Institute of Semiconductor Physics, 630090 Novosibirsk, pr. Lavrentieva 13 (Russian Federation); Sobolev, N.; Carmo, M. C. [Departamento de Fisica e I3N, Universidade de Aveiro, Aveiro (Portugal)

2011-12-23T23:59:59.000Z

423

Negative differential gain in quantum dot systems: Interplay of structural properties and many-body effects  

SciTech Connect (OSTI)

The saturation behaviour of optical gain with increasing excitation density is an important factor for laser device performance. For active materials based on self-organized InGaAs/GaAs quantum dots, we study the interplay between structural properties of the quantum dots and many-body effects of excited carriers in the optical properties via a combination of tight-binding and quantum-kinetic calculations. We identify regimes where either phase-space filling or excitation-induced dephasing dominates the saturation behavior of the optical gain. The latter can lead to the emergence of a negative differential material gain.

Goldmann, E., E-mail: goldmann@itp.uni-bremen.de; Jahnke, F. [Institute for Theoretical Physics, University of Bremen, Bremen 28359 (Germany); Lorke, M.; Frauenheim, T. [Bremen Center for Computational Materials Science BCCMS, University of Bremen, Bremen 28359 (Germany)

2014-06-16T23:59:59.000Z

424

Temperature dependency of the emission properties from positioned In(Ga)As/GaAs quantum dots  

SciTech Connect (OSTI)

In this letter we study the influence of temperature and excitation power on the emission linewidth from site-controlled InGaAs/GaAs quantum dots grown on nanoholes defined by electron beam lithography and wet chemical etching. We identify thermal electron activation as well as direct exciton loss as the dominant intensity quenching channels. Additionally, we carefully analyze the effects of optical and acoustic phonons as well as close-by defects on the emission linewidth by means of temperature and power dependent micro-photoluminescence on single quantum dots with large pitches.

Braun, T.; Schneider, C.; Maier, S.; Forchel, A.; Höfling, S.; Kamp, M. [Technische Physik, Physikalisches Institut and Wilhelm Conrad Röntgen-Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074, Würzburg (Germany); Igusa, R.; Iwamoto, S.; Arakawa, Y. [University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505 (Japan)

2014-09-15T23:59:59.000Z

425

Sub-microsecond correlations in photoluminescence from InAs quantum dots  

E-Print Network [OSTI]

Photon correlation measurements reveal memory effects in the optical emission of single InAs quantum dots with timescales from 10 to 800 ns. With above-band optical excitation, a long-timescale negative correlation (antibunching) is observed, while with quasi-resonant excitation, a positive correlation (blinking) is observed. A simple model based on long-lived charged states is presented that approximately explains the observed behavior, providing insight into the excitation process. Such memory effects can limit the internal efficiency of light emitters based on single quantum dots, and could also be problematic for proposed quantum-computation schemes.

Charles Santori; David Fattal; Jelena Vuckovic; Glenn S. Solomon; Edo Waks; Yoshihisa Yamamoto

2003-08-16T23:59:59.000Z

426

An Efficient Source of Single Photons: A Single Quantum Dot in a Micropost Microcavity  

E-Print Network [OSTI]

We have demonstrated efficient production of triggered single photons by coupling a single semiconductor quantum dot to a three-dimensionally confined optical mode in a micropost microcavity. The efficiency of emitting single photons into a single-mode travelling wave is approximately 38%, which is nearly two orders of magnitude higher than for a quantum dot in bulk semiconductor material. At the same time, the probability of having more than one photon in a given pulse is reduced by a factor of seven as compared to light with Poissonian photon statistics.

Matthew Pelton; Charles Santori; Jelena Vuckovic; Bingyang Zhang; Glenn S. Solomon; Jocelyn Plant; Yoshihisa Yamamoto

2002-08-08T23:59:59.000Z

427

Cavity Quantum Electrodynamics with a Single Quantum Dot Coupled to a Photonic Molecule  

E-Print Network [OSTI]

We demonstrate the effects of cavity quantum electrodynamics for a quantum dot coupled to a photonic molecule, consisting of a pair of coupled photonic crystal cavities. We show anti-crossing between the quantum dot and the two super-modes of the photonic molecule, signifying achievement of the strong coupling regime. From the anti-crossing data, we estimate the contributions of both mode-coupling and intrinsic detuning to the total detuning between the super-modes. Finally, we also show signatures of off-resonant cavity-cavity interaction in the photonic molecule.

Arka Majumdar; Armand Rundquist; Michal Bajcsy; Jelena Vu?kovi?

2012-01-30T23:59:59.000Z

428

X-ray luminescence of CdTe quantum dots in LaF{sub 3}:Ce/CdTe nanocomposites  

SciTech Connect (OSTI)

CdTe quantum dots have intense photoluminescence but exhibit almost no x-ray luminescence. However, intense x-ray luminescence from CdTe quantum dots is observed in LaF{sub 3}:Ce/CdTe nanocomposites. This enhancement in the x-ray luminescence of CdTe quantum dots is attributed to the energy transfer from LaF{sub 3}:Ce to CdTe quantum dots in the nanocomposites. The combination of LaF{sub 3}:Ce nanoparticles and CdTe quantum dots makes LaF{sub 3}:Ce/CdTe nanocomposites promising scintillators for radiation detection.

Hossu, Marius; Liu Zhongxin; Yao Mingzhen; Ma Lun; Chen Wei

2012-01-02T23:59:59.000Z

429

Photoluminescence from In0.5Ga0.5As/GaP quantum dots coupled to photonic crystal cavities  

E-Print Network [OSTI]

We demonstrate room temperature visible wavelength photoluminescence from In0.5Ga0.5As quantum dots embedded in a GaP membrane. Time-resolved above band photoluminescence measurements of quantum dot emission show a biexpontential decay with lifetimes of ~200 ps. We fabricate photonic crystal cavities which provide enhanced outcoupling of quantum dot emission, allowing the observation of narrow lines indicative of single quantum dot emission. This materials system is compatible with monolithic integration on Si, and is promising for high efficiency detection of single quantum dot emission as well as optoelectronic devices emitting at visible wavelengths.

Kelley Rivoire; Sonia Buckley; Yuncheng Song; Minjoo Larry Lee; Jelena Vuckovic

2012-01-05T23:59:59.000Z

430

Cryogenic spectroscopy of ultra-low density colloidal lead chalcogenide quantum dots on chip-scale optical cavities towards single quantum dot near-infrared cavity QED  

E-Print Network [OSTI]

We present evidence of cavity quantum electrodynamics from a sparse density of strongly quantum-confined Pb-chalcogenide nanocrystals (between 1 and 10) approaching single-dot levels on moderately high-Q mesoscopic silicon optical cavities. Operating at important near-infrared (1500-nm) wavelengths, large enhancements are observed from devices and strong modifications of the QD emission are achieved. Saturation spectroscopy of coupled QDs is observed at 77K, highlighting the modified nanocrystal dynamics for quantum information processing.

Ranojoy Bose; Jie Gao; James F. McMillan; Alex D. Williams; Chee Wei Wong

2008-12-01T23:59:59.000Z

431

A theoretical analysis of the optical absorption properties in one-dimensional InAs/GaAs quantum dot superlattices  

SciTech Connect (OSTI)

We present theoretical investigations of miniband structures and optical properties of InAs/GaAs one-dimensional quantum dot superlattices (1D-QDSLs). The calculation is based on the multi-band k·p theory, including the conduction and valence band mixing effects, the strain effect, and the piezoelectric effect; all three effects have periodic boundary conditions. We find that both the electronic and optical properties of the 1D-QDSLs show unique states which are different from those of well known single quantum dots (QDs) or quantum wires. We predict that the optical absorption spectra of the 1D-QDSLs strongly depend on the inter-dot spacing because of the inter-dot carrier coupling and changing strain states, which strongly influence the conduction and valence band potentials. The inter-miniband transitions form the absorption bands. Those absorption bands can be tuned from almost continuous (closely stacked QD case) to spike-like shape (almost isolated QD case) by changing the inter-dot spacing. The polarization of the lowest absorption peak for the 1D-QDSLs changes from being parallel to the stacking direction to being perpendicular to the stacking direction as the inter-dot spacing increases. In the case of closely stacked QDs, in-plane anisotropy, especially [110] and [11{sup ¯}0] directions also depend on the inter-dot spacing. Our findings and predictions will provide an additional degree of freedom for the design of QD-based optoelectronic devices.

Kotani, Teruhisa, E-mail: kotani.teruhisa@sharp.co.jp [Advanced Technology Research Laboratories, Sharp Corporation, 2613-1 Ichinomoto-cho, Tenri, Nara 632-8567 (Japan); Institute for Nanoelectronics, Technische Universität München, Arcisstr. 21, 80333 Munich (Germany); Birner, Stefan [Institute for Nanoelectronics, Technische Universität München, Arcisstr. 21, 80333 Munich (Germany); Walter Schottky Institute, Technische Universität München, Am Coulombwall 4, 85748 Garching (Germany); Lugli, Paolo [Institute for Nanoelectronics, Technische Universität München, Arcisstr. 21, 80333 Munich (Germany); Hamaguchi, Chihiro [Advanced Technology Research Laboratories, Sharp Corporation, 2613-1 Ichinomoto-cho, Tenri, Nara 632-8567 (Japan)

2014-04-14T23:59:59.000Z

432

Intermediate-band solar cells based on quantum dot supracrystals Q. Shao and A. A. Balandina  

E-Print Network [OSTI]

parameter in the photovoltaic PV solar cell technology. It is defined as = FFVocJsc Pin , 1 where FFIntermediate-band solar cells based on quantum dot supracrystals Q. Shao and A. A. Balandina Nano to implement the intermediate-band solar cell with the efficiency exceeding the Shockley-Queisser limit

433

Depleted-heterojunction colloidal quantum dot photovoltaics employing low-cost electrical contacts  

E-Print Network [OSTI]

Department of Materials Science and Engineering, 184 College Street, Toronto, Ontario M5S 3E4, Canada 3 of depleted-heterojunction colloidal quantum dot solar cells, we describe herein a strategy that replaces. © 2010 American Institute of Physics. doi:10.1063/1.3463037 Solar energy harvesting requires

434

Electrical and Thermal Conductivity of Ge/Si Quantum Dot Superlattices  

E-Print Network [OSTI]

. Good carrier mobility and electric con- ductivity are important for thermoelectric materials where-Riverside, Riverside, California 92521, USA Recently proposed thermoelectric applications of quantum dot superlattices made of different material systems depend crucially on the values of the electrical and thermal

435

Theoretical performance of solar cell based on mini-bands quantum dots  

SciTech Connect (OSTI)

The tremendous amount of research in solar energy is directed toward intermediate band solar cell for its advantages compared with the conventional solar cell. The latter has lower efficiency because the photons have lower energy than the bandgap energy and cannot excite mobile carriers from the valence band to the conduction band. On the other hand, if mini intermediate band is introduced between the valence and conduction bands, then the smaller energy photons can be used to promote charge carriers transfer to the conduction band and thereby the total current increases while maintaining a large open circuit voltage. In this article, the influence of the new band on the power conversion efficiency for structure of quantum dots intermediate band solar cell is theoretically investigated and studied. The time-independent Schrödinger equation is used to determine the optimum width and location of the intermediate band. Accordingly, achievement of a maximum efficiency by changing the width of quantum dots and barrier distances is studied. Theoretical determination of the power conversion efficiency under the two different ranges of QD width is presented. From the obtained results, the maximum power conversion efficiency is about 70.42%. It is carried out for simple cubic quantum dot crystal under fully concentrated light. It is strongly dependent on the width of quantum dots and barrier distances.

Aly, Abou El-Maaty M., E-mail: drabouelmaaty@hotmail.com, E-mail: ashraf.nasr@gmail.com [Power Electronics and Energy Conversion Department, ERI, NRCB (Egypt); College of Computer, Qassim University, P.O.B. 6688, Buryadah 51453 (Saudi Arabia); Nasr, A., E-mail: drabouelmaaty@hotmail.com, E-mail: ashraf.nasr@gmail.com [Radiation Engineering Department, NCRRT, Atomic Energy Authority (Egypt); College of Computer, Qassim University, P.O.B. 6688, Buryadah 51453 (Saudi Arabia)

2014-03-21T23:59:59.000Z

436

Hierarchically Structured ZnO Nanorods-Nanosheets for Improved Quantum-Dot-Sensitized Solar Cells  

E-Print Network [OSTI]

). This hierarchical structure had two advantages in improving the power conversion efficiency (PCE) of the solar cells. INTRODUCTION The establishment of low-cost and high-performance solar cells for sustainable energy sourcesHierarchically Structured ZnO Nanorods-Nanosheets for Improved Quantum-Dot-Sensitized Solar Cells

Cao, Guozhong

437

Prospective Article Materials processing strategies for colloidal quantum dot solar cells  

E-Print Network [OSTI]

energy sources, particularly with cheap and plentiful natural gas, solar photovoltaic systems must cost of the solar panels themselves. Third-generation photovoltaic systems, including organic, dye-sensitized, and colloidal quantum dot (CQD) solar cells, offer a path to low-weight, low-cost, and prospectively high

438

FEW ELECTRON QUANTUM DOTS IN InAs/InP CORE SHELL NANOWIRES  

E-Print Network [OSTI]

..." Much effort is being directed at harnessing the potential power of quantum com- puting [7]. At the turn electric field (EDSR) is expected to be orders of magnitudes faster. To this effect, InAs nanowires with a thin shell of InP, are explored as a system where a quantum dot can be defined and probed electrically

Nygård, Jesper

439

Effect of the (OH) Surface Capping on ZnO Quantum Dots  

E-Print Network [OSTI]

in air at different temperatures from 150­500 C for 30 min. In comparison, highly purified bulk Zn is related to oxygen deficiency [1]; the other is a much narrower ultraviolet (UV) emission band at around, compared with good quality ZnO single crystals or ZnO powders, the UV bandgap luminescence in quantum dots

Nabben, Reinhard

440

Single hole quantum dot transistors in silicon Effendi Leobandung, Lingjie Guo, and Stephen Y. Choua)  

E-Print Network [OSTI]

of the gate voltage have been observed at temperatures over 81 K and drain biases over 66 mV. The oscillations to the drain. As the gate voltage was scanned, the drain current i.e., the hole current oscil- lated Fig. 3-dot transistors were fabricated in silicon-on-insulator. Strong oscillations in the drain current as a function

Note: This page contains sample records for the topic "addthis dot harris" 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

A Study Of Semiconductor Quantum Dots In The Application To Terahertz Sensors  

E-Print Network [OSTI]

A Study Of Semiconductor Quantum Dots In The Application To Terahertz Sensors Raymond Davis M and referenced as part of background information used in this project. Raymond Davis October 1, 2011 ii #12 sensors. For detection of terahertz radia- tion we probe charge excitations of QDs caused

Sheldon, Nathan D.

442

Wave-Function Mapping of Graphene Quantum Dots with Soft Confinement D. Subramaniam,1  

E-Print Network [OSTI]

Wave-Function Mapping of Graphene Quantum Dots with Soft Confinement D. Subramaniam,1 F. Libisch,2) Using low-temperature scanning tunneling spectroscopy, we map the local density of states of graphene the graphene K point, the electronic properties of the QDs are dominantly graphenelike. Indeed, we compare

Florian, Libisch

443

Eigenvalues imbedded in the band spectrum for the periodic array of quantum dots  

E-Print Network [OSTI]

) Department of Higher Mathematics, Institute of Fine Mechanics and Optics, Sablinskaya 14, St. II. Model We consider an array of quantum dots displaced in the nodes of a plane lattice \\Gamma which is invariant with respect to translations by vectors of a Bravais lattice \\Lambda. We assume that 0 2 \\Gamma

444

Self-assembly of triangular quantum dots on (111)A substrates by droplet epitaxy  

SciTech Connect (OSTI)

We report the self-assembly of triangular GaAs quantum dots (QDs) on (111)A substrates using droplet epitaxy. Shape transition from hexagonal to triangular QDs is observed with increasing crystallizing temperature. The mechanism of the morphological change is discussed in terms of different growth rates of step edges on a (111)A substrate.

Jo, M.; Mano, T.; Abbarchi, M.; Kuroda, T. [Advanced Photonics Materials Unit, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan); Sakoda, K. [Advanced Photonics Materials Unit, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan and Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577 (Japan)

2014-05-15T23:59:59.000Z

445

Lead-position dependent regular oscillations and random fluctuations of conductance in graphene quantum dots  

E-Print Network [OSTI]

Lead-position dependent regular oscillations and random fluctuations of conductance in graphene.1088/0953-8984/25/8/085502 Lead-position dependent regular oscillations and random fluctuations of conductance in graphene quantum, for graphene quantum dots, the conductance variations with the lead positions. Since for graphene the types

Lai, Ying-Cheng

446

Single pulse ultrafast laser imprinting of axial dot arrays in bulk glasses C. Mauclair,1,  

E-Print Network [OSTI]

Single pulse ultrafast laser imprinting of axial dot arrays in bulk glasses C. Mauclair,1, A sam- ples were irradiated with 160 fs pulses from an 800 nm Ti:Sapphire amplified ultrafast laser.mauclair@univ-st-etienne.fr Compiled December 20, 2010 Ultrafast laser processing of bulk transparent materials can significantly gain

Paris-Sud XI, Université de

447

Infrared and photoluminescence spectroscopy of p-doped self-assembled Ge dots on Si  

E-Print Network [OSTI]

Infrared and photoluminescence spectroscopy of p-doped self-assembled Ge dots on Si L. P Received 14 June 1999; accepted for publication 17 August 1999 We report infrared photocurrent PC-8 Quantum well infrared photodetector QWIP technol- ogy has matured rapidly in the last several years.1

Rokhinson, Leonid

448

Growth of a single freestanding multiwall carbon nanotube on each nanonickel dot  

E-Print Network [OSTI]

that the structures are indeed hollow nanotubes. The diameter and height depend on the nickel dot size and growth time displays FEDs . Attempts to manipulate nano- tubes for these applications have been made by postgrowth deposition CVD on mesopo- rous silica with imbedded iron particles.9 The growth of large arrays of well

Reed, Mark

449

Intersubband absorption in boron-doped multiple Ge quantum dots J. L. Liu,a)  

E-Print Network [OSTI]

Intersubband absorption in boron-doped multiple Ge quantum dots J. L. Liu,a) W. G. Wu, A. Balandin; accepted for publication 3 November 1998 The intersubband absorption in self-assembled boron-doped multiple and undoped Si barriers. The infrared absorption as a function of wavelength is measured by Fourier transform

450

Tuning the optical properties of dilute nitride site controlled quantum dots  

SciTech Connect (OSTI)

We show that deterministic control of the properties of pyramidal site-controlled quantum dots (QD) could be achieved by exposing the QD layer to nitrogen precursor unsymmetrical dimethylhydrazine (UDMHy). The properties that could be tuned include an expected emission reduction in dilute nitride materials, excitonic pattern (biexciton binding energy) and improved carrier confinement potential symmetry (reduced fine-structure splitting)

Juska, G.; Dimastrodonato, V.; Mereni, L. O.; Gocalinska, A.; Pelucchi, E. [Tyndall National Institute, University College Cork, Lee Maltings, Cork (Ireland)

2013-12-04T23:59:59.000Z

451

Fine Structure of Highly Charged Excitons in Semiconductor Quantum Dots B. Urbaszek,1  

E-Print Network [OSTI]

quantum dots (QDs) are artificial atoms whose properties can be individually measured in their solid, the degeneracy of the excitonic ground state is lifted by the electron-hole (EH) exchange interaction, resultingV, they can be much larger in semiconductor nanocrystals [3] or polymers [4]. In all these systems

Ludwig-Maximilians-Universität, München

452

Photovoltaic nanopillar radial junction diode architecture enhanced by integrating semiconductor quantum dot nanocrystals as light harvesters  

E-Print Network [OSTI]

Photovoltaic nanopillar radial junction diode architecture enhanced by integrating semiconductor hybridized, radial p-n junction based, nanopillar solar cells with photovoltaic performance enhanced. By furnishing Si based nanopillar photovoltaic diodes with CdSe quantum dots, we experimentally showed up

Demir, Hilmi Volkan

453

Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Xukai Xinab  

E-Print Network [OSTI]

Cu2ZnSnS4 nanocrystals and graphene quantum dots for photovoltaics Jun Wang,a Xukai Xinab advances in the synthesis and utilization of CZTS nanocrystals and colloidal GQDs for photovoltaics emerged to achieve low cost, high perfor- mance photovoltaics, including organic solar cells,2­6 dye

Lin, Zhiqun

454

Study of the self-organization processes in lead sulfide quantum dots  

SciTech Connect (OSTI)

A procedure is described for the synthesis of nanoparticles based on lead chalcogenides. The procedure combines the synthesis of colloidal quantum dots (QDs) in aqueous solutions with simultaneous organization of the QDs into ordered arrays. The processes of the self-organization of QDs are analyzed at the nano- and microscopic levels by the photoluminescence method, atomic-force microscopy, and optical microscopy.

Tarasov, S. A., E-mail: SATarasov@mail.ru; Aleksandrova, O. A.; Maksimov, A. I.; Maraeva, E. V.; Matyushkin, L. B.; Men’kovich, E. A.; Moshnikov, V. A. [St. Petersburg Electrotechnical University LETI (Russian Federation); Musikhin, S. F. [St. Petersburg State Polytechnic University (Russian Federation)

2014-12-15T23:59:59.000Z

455

Coupling an electron spin in a semiconductor quantum dot to an optical nano-cavity  

E-Print Network [OSTI]

We propose a scheme to efficiently couple a single quantum dot electron spin to an optical nano-cavity, which enables us to simultaneously benefit from a cavity as an efficient photonic interface, as well as to perform high fidelity (nearly 100%) spin initialization and manipulation achievable in bulk semiconductors. Moreover, the presence of the cavity speeds up the spin initialization process beyond GHz.

Arka Majumdar; Per Kaer; Michal Bajcsy; Erik D. Kim; Konstantinos G. Lagoudakis; Armand Rundquist; Jelena Vuckovic

2013-04-07T23:59:59.000Z

456

1 Dotted line for IT infrastructure and policies 2 Joint ITS/SOM appointment  

E-Print Network [OSTI]

Services Reba Brindley Project Management Transition Projects Barbara Maher Jesse Anderson Desktop to Customer Relationship Management Group 7 Dotted line to Opinder Bawa; direct reporting to home departments Phillips Teresa Regalia (3 vacant) Kevin Dale Identity Management Elliot Kendall (term) Andrei Mattes Mark

Derisi, Joseph

457

Synthesis and optical properties of cadmium selenide quantum dots for white light-emitting diode application  

SciTech Connect (OSTI)

Highlights: ? Stable CdSe QDs were synthesized by the one-step and two-level process respectively. ? The fabricated white LEDs show good white balance. ? CdSe QDs present well green to yellow band luminescence. ? CdSe QDs displayed a broad excitation band. - Abstract: Yellow light-emitting cadmium selenide quantum dots were synthesized using one-step and two-step methods in an aqueous medium. The structural luminescent properties of these quantum dots were investigated. The obtained cadmium selenide quantum dots displayed a broad excitation band suitable for blue or near-ultraviolet light-emitting diode applications. White light-emitting diodes were fabricated by coating the cadmium selenide samples onto a 460 nm-emitting indium gallium nitrite chip. Both samples exhibited good white balance. Under a 20 mA working current, the white light-emitting diode fabricated via the one-step and two-step methods showed Commission Internationale de l’Éclairage coordinates at (0.27, 0.23) and (0.27, 0.33), respectively, and a color rendering index equal to 41 and 37, respectively. The one-step approach was simpler, greener, and more effective than the two-step approach. The one-step approach can be enhanced by combining cadmium selenide quantum dots with proper phosphors.

Xu, Xianmei; Wang, Yilin; Gule, Teri; Luo, Qiang [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China); Zhou, Liya, E-mail: zhouliyatf@163.com [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China); Gong, Fuzhong [School of Chemistry and Chemical Engineering, Guangxi University, Nanning 53000 (China)

2013-03-15T23:59:59.000Z

458

PHYSICAL REVIEW B 85, 085117 (2012) Spin thermopower in interacting quantum dots  

E-Print Network [OSTI]

current without accompanying charge current. For temperatures and fields at or above the Kondo temperature, we relate the spin-Seebeck coefficient to the charge-Seebeck coefficient of a negative-U quantum dot applications, including power generation, refrigeration, and temperature measurement.1 Thermoelectric phenomena

Ramsak, Anton

459

Quasiresonant Excitation of InP/InGaP Quantum Dots Using Second Harmonic Generated in a Photonic Crystal Cavity  

E-Print Network [OSTI]

Indistinguishable single photons are necessary for quantum information processing applications. Resonant or quasiresonant excitation of single quantum dots provides greater single photon indistinguishability than incoherent pumping, but is also more challenging experimentally. Here, we demonstrate high signal to noise quasiresonant excitation of InP/InGaP quantum dots. The excitation is provided via second harmonic generated from a telecommunications wavelength laser resonant with the fundamental mode of a photonic crystal cavity, fabricated at twice the quantum dot transition wavelength. The second harmonic is generated using the \\chi(2) nonlinearity of the InGaP material matrix.

Sonia Buckley; Kelley Rivoire; Fariba Hatami; Jelena Vuckovic

2012-10-03T23:59:59.000Z

460

IDAHO STATE UNIVERSITY Jason Harris  

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

(radiation dosimetry and luminescence dating). He also performed research in the area of nuclear waste amelioration, fuel cell development and retrospective dosimetry. He also was...

Note: This page contains sample records for the topic "addthis dot harris" 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

Harry Weerts | Argonne National Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9 HanfordCellHarnessing

462

Arno Harris | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300AlgoilEnergyElectric Coop Corp Place:ArmaecArmy Permit Application |Arno

463

Harry S. Truman - Hanford Site  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCIResearchGulf

464

Reflections of Harry J. Longwell  

E-Print Network [OSTI]

Department and his organization's work environment reflected similar philosophies and work practices. In fact contribution in the area of #12;drilling technology. So strong, in fact, that the Well Control was named, I was recruited by one of the best companies in the world, Exxon. I have never forgotten that

Stephens, Jacqueline

465

Auger recombination and intraband absorption of two-photon-excited carriers in colloidal CdSe quantum dots  

E-Print Network [OSTI]

Se quantum dots Yingli Qu and Wei Jia Department of Physics, National University of Singapore, Singapore 117542, Republic of Singapore Yuangang Zheng and Jackie Y. Ying Institute of Bioengineering

Wei, Ji

466

Development of a Bioorthogonal and Highly Efficient Conjugation Method for Quantum Dots using Tetrazine-Norbornene Cycloaddition  

E-Print Network [OSTI]

We present a bioorthogonal and modular conjugation method for efficient coupling of organic dyes and biomolecules to quantum dots (QDs) using a norbornene?tetrazine cycloaddition. The use of noncoordinating functional ...

Han, Hee-Sun

467

Physica E 34 (2006) 15 Single-shot readout of electron spins in a semiconductor quantum dot  

E-Print Network [OSTI]

states in a semiconductor quantum dot that is robust against charge noise and can be used even when readout (E-RO), the spin levels are positioned around the electrochemical potential of the reservoir mres

468

Role of surface states and defects in the ultrafast nonlinear optical properties of CuS quantum dots  

SciTech Connect (OSTI)

We report facile preparation of water dispersible CuS quantum dots (2–4 nm) and nanoparticles (5–11 nm) through a nontoxic, green, one-pot synthesis method. Optical and microstructural studies indicate the presence of surface states and defects (dislocations, stacking faults, and twins) in the quantum dots. The smaller crystallite size and quantum dot formation have significant effects on the high energy excitonic and low energy plasmonic absorption bands. Effective two-photon absorption coefficients measured using 100 fs laser pulses employing open-aperture Z-scan in the plasmonic region of 800 nm reveal that CuS quantum dots are better ultrafast optical limiters compared to CuS nanoparticles.

Mary, K. A. Ann; Unnikrishnan, N. V., E-mail: nvu100@yahoo.com [School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560 (India); Philip, Reji [Light and Matter Physics Group, Raman Research Institute, C.V. Raman Avenue, Sadashivanagar, Bangalore 560080 (India)

2014-07-01T23:59:59.000Z

469

Spin and Conductance-Peak-Spacing Distributions in Large Quantum Dots: A Density-Functional Theory Study  

E-Print Network [OSTI]

of solid-state physics. A semiconductor quantum dot (QD) [1,2]--a nanodevice in which electron motion was regu- lar in shape [24]. Our aim here is to bridge the gap between the two theoretical approaches

Baranger, Harold U.

470

High Throughput Synthesis of Uniform Biocompatible Polymer Beads with High Quantum Dot Loading Using Microfluidic Jet-Mode Breakup  

E-Print Network [OSTI]

Uniform polymer microbeads with highly loaded quantum dots (QDs) are produced using high-throughput coherent jet breakup of a biocompatible poly(ethylene glycol) diacrylate (PEGDA) prepolymer resin, followed by in-line ...

Lee, Seung-Kon

471

Nanoscale optical positioning of single quantum dots for bright, pure, and on-demand single-photon emission  

E-Print Network [OSTI]

Self-assembled, epitaxially-grown InAs/GaAs quantum dots are promising semiconductor quantum emitters that can be integrated on a chip for a variety of photonic quantum information science applications. However, self-assembled growth results in an essentially random in-plane spatial distribution of quantum dots, presenting a challenge in creating devices that exploit the strong interaction of single quantum dots with highly confined optical modes. Here, we present a photoluminescence imaging approach for locating single quantum dots with respect to alignment features with an average (minimum) position uncertainty efficiency (48 % +/- 5 % into a 0.4 numerical aperture lens, close to the theoretically predicted value of 50 %), low multiphoton prob...

Sapienza, Luca; Badolato, Antonio; Srinivasan, Kartik

2015-01-01T23:59:59.000Z

472

Hole Spin Pumping and Re-pumping in a p-type ?-doped InAs Quantum Dot  

E-Print Network [OSTI]

We have grown high quality p-type {\\delta}-doped InAs quantum dots and have demonstrated coherent spin pumping and repumping of a hole spin in a positively charged quantum dot by means of a single-laser driving scheme under a high magnetic field in the Voigt configuration. Modeling of our system shows excellent qualitative agreement with the experimental findings and further explores the performance of the single-laser scheme for spin pumping and re-pumping.

Konstantinos G. Lagoudakis; Kevin A. Fischer; Tomas Sarmiento; Kai Mueller; Jelena Vu?kovi?

2014-08-29T23:59:59.000Z

473

Strongly confining bare core CdTe quantum dots in polymeric microdisk resonators  

SciTech Connect (OSTI)

We report on a simple route to the efficient coupling of optical emission from strongly confining bare core CdTe quantum dots (QDs) to the eigenmodes of a micro-resonator. The quantum emitters are embedded into QD/polymer sandwich microdisk cavities. This prevents photo-oxidation and yields the high dot concentration necessary to overcome Auger enhanced surface trapping of carriers. In combination with the very high cavity Q-factors, interaction of the QDs with the cavity modes in the weak coupling regime is readily observed. Under nanosecond pulsed excitation the CdTe QDs in the microdisks show lasing with a threshold energy as low as 0.33 ?J.

Flatae, Assegid, E-mail: assegid.flatae@kit.edu; Grossmann, Tobias; Beck, Torsten; Wiegele, Sarah; Kalt, Heinz [Institute of Applied Physics and DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Str.1, 76131 Karlsruhe (Germany)

2014-01-01T23:59:59.000Z

474

Phonon-assisted robust and deterministic two-photon biexciton preparation in a quantum dot  

E-Print Network [OSTI]

We investigate both experimentally and theoretically a simple yet more robust and flexible alternative to Rabi oscillation-type biexciton preparation protocols traditionally used for semiconductor quantum dots. The quantum dot is excited by a strong laser pulse positively detuned from the two-photon resonance yielding an on demand initialization of the biexciton state by making use of the phonon-induced thermalization of the photon dressed states. It is shown that for excitation pulses in the picosecond range, a stable and high fidelity of up to $f_{XX}=0.98\\pm 0.01$ is reached. Notably, the generated photons show similar coherence properties as measured in the resonant two-photon scheme. This protocol is a powerful tool for the control of complex solid state systems combining radiative cascades, entanglement and resonant cavity modes.

S. Bounouar; M. Müller; A. M. Barth; M. Glässl; V. M. Axt; P. Michler

2014-08-29T23:59:59.000Z

475

High open circuit voltages of solar cells based on quantum dot and dye hybrid-sensitization  

SciTech Connect (OSTI)

A type of solar cell based on quantum dot (QD) and dye hybrid-sensitized mesoporous TiO{sub 2} film electrode was designed and reported. The electrode was consisted of a TiO{sub 2} nanoparticle (NP) thin film layer sensitized with CdS quantum dot (QD) and an amorphous TiO{sub 2} coated TiO{sub 2} NP thin film layer that sensitized with C106 dye. The amorphous TiO{sub 2} layer was obtained by TiCl{sub 4} post-treatment to improve the properties of solar cells. Research showed that the solar cells fabricated with as-prepared hybrid-sensitized electrode exhibited excellent photovoltaic performances and a fairly high open circuit voltage of 796?mV was achieved.

Zhao, Yujie; Zhao, Wanyu; Chen, Jingkuo; Li, Huayang; Fu, Wuyou, E-mail: hari@hpu.edu.cn, E-mail: fuwy56@163.com; Sun, Guang; Cao, Jianliang; Zhang, Zhanying [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China)] [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China); Bala, Hari, E-mail: hari@hpu.edu.cn, E-mail: fuwy56@163.com [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China) [School of Materials Science and Engineering and Cultivating Base for Key Laboratory of Environment-friendly Inorganic Materials in University of Henan Province, Henan Polytechnic University, Jiaozuo 454000 (China); College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, Tongliao 028043 (China)

2014-01-06T23:59:59.000Z

476

Synthesis of Non-blinking Semiconductor Quantum Dots Emitting in the Near-Infrared  

SciTech Connect (OSTI)

Our previous work demonstrates that Quasi-Type II CdSe/CdS core-shell quantum dots with thick shells (3-5 nm) exhibit unique photophysical characteristics, including improved chemical robustness over typical thin-shelled core/shell systems and the elimination of blinking through suppression of nonradiative Auger recombination. Here we describe a new thick-shelled heterostructure, InP/CdS, which exhibits a Type II bandgap alignment producing near-infrared (NIR) emission. Samples with a range of shell thicknesses were synthesized, enabling shell-thickness-dependent study of the absorbance and emission spectra, fluorescence lifetimes, and quantum yields. InP/CdS/ZnS core/shell/shell structures were also synthesized to reduce cadmium exposure for applications in the biological environment. Single particle spectroscopy indicates reduced blinking and improved photostability with increasing shell thickness, resulting in thick-shelled dots that are appropriate for single-particle tracking measurements with NIR emission.

Dennis, Allison M. [Los Alamos National Laboratory; Mangum, Benjamin D. [Los Alamos National Laboratory; Piryatinski, Andrei [Los Alamos National Laboratory; Park, Young-Shin [Los Alamos National Laboratory; Htoon, Han [Los Alamos National Laboratory; Hollingsworth, Jennifer A. [Los Alamos National Laboratory

2012-06-21T23:59:59.000Z

477

Pulsed laser deposition of Mn doped CdSe quantum dots for improved solar cell performance  

SciTech Connect (OSTI)

In this work, we demonstrate (1) a facile method to prepare Mn doped CdSe quantum dots (QDs) on Zn{sub 2}SnO{sub 4} photoanodes by pulsed laser deposition and (2) improved device performance of quantum dot sensitized solar cells of the Mn doped QDs (CdSe:Mn) compared to the undoped QDs (CdSe). The band diagram of photoanode Zn{sub 2}SnO{sub 4} and sensitizer CdSe:Mn QD is proposed based on the incident-photon-to-electron conversion efficiency (IPCE) data. Mn-modified band structure leads to absorption at longer wavelengths than the undoped CdSe QDs, which is due to the exchange splitting of the CdSe:Mn conduction band by the Mn dopant. Three-fold increase in the IPCE efficiency has also been observed for the Mn doped samples.

Dai, Qilin; Wang, Wenyong, E-mail: wwang5@uwyo.edu, E-mail: jtang2@uwyo.edu; Tang, Jinke, E-mail: wwang5@uwyo.edu, E-mail: jtang2@uwyo.edu [Department of Physics and Astronomy, University of Wyoming, Laramie, Wyoming 82071 (United States); Sabio, Erwin M. [Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071 (United States)

2014-05-05T23:59:59.000Z

478

Height stabilization of GaSb/GaAs quantum dots by Al-rich capping  

SciTech Connect (OSTI)

GaSb quantum dots (QDs) in a GaAs matrix are investigated with cross-sectional scanning tunneling microscopy (X-STM) and photoluminescence (PL). We observe that Al-rich capping materials prevent destabilization of the nanostructures during the capping stage of the molecular beam epitaxy (MBE) growth process and thus preserves the QD height. However, the strain induced by the absence of destabilization causes many structural defects to appear around the preserved QDs. These defects originate from misfit dislocations near the GaSb/GaAs interface and extend into the capping layer as stacking faults. The lack of a red shift in the QD PL suggests that the preserved dots do not contribute to the emission spectra. We suggest that a better control over the emission wavelength and an increase of the PL intensity is attainable by growing smaller QDs with an Al-rich overgrowth.

Smakman, E. P., E-mail: e.p.smakman@tue.nl; Koenraad, P. M. [Department of Applied Physics, Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven (Netherlands); DeJarld, M.; Martin, A. J.; Millunchick, J. [Department of Material Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States); Luengo-Kovac, M.; Sih, V. [Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2014-09-01T23:59:59.000Z

479

Carrier transfer from InAs quantum dots to ErAs metal nanoparticles  

SciTech Connect (OSTI)

Erbium arsenide (ErAs) is a semi-metallic material that self-assembles into nanoparticles when grown in GaAs via molecular beam epitaxy. We use steady-state and time-resolved photoluminescence to examine the mechanism of carrier transfer between indium arsenide (InAs) quantum dots and ErAs nanoparticles in a GaAs host. We probe the electronic structure of the ErAs metal nanoparticles (MNPs) and the optoelectronic properties of the nanocomposite and show that the carrier transfer rates are independent of pump intensity. This result suggests that the ErAs MNPs have a continuous density of states and effectively act as traps. The absence of a temperature dependence tells us that carrier transfer from the InAs quantum dots to ErAs MNPs is not phonon assisted. We show that the measured photoluminescence decay rates are consistent with a carrier tunneling model.

Haughn, C. R.; Chen, E. Y.; Zide, J. M. O.; Doty, M. F., E-mail: doty@udel.edu [Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716 (United States); Steenbergen, E. H.; Bissell, L. J.; Eyink, K. G. [AFRL/RXAN, Wright Patterson AFB, Ohio 45433 (United States)

2014-09-08T23:59:59.000Z

480

Note: Near infrared spectral and transient measurements of PbS quantum dots luminescence  

SciTech Connect (OSTI)

We describe an experimental setup for the characterization of luminescence from nanostructures. The setup is intended for steady-state and time-resolved luminescence measurements in the near-infrared region. The setup allows us to study spectral luminescence properties in the spectral range of 0.8–2.0 ?m with high spectral resolution and kinetic luminescence properties between 0.8 and 1.7 ?m with a time resolution of 3 ns. The capabilities of the system are illustrated by taking luminescence measurements from PbS quantum dots. We established the size dependencies of the optical properties of the PbS quantum dots over a wide spectral range. Finally, the energy transfer process was studied with a high temporal and spectral resolution.

Parfenov, P. S., E-mail: qrspeter@pochta.ru; Litvin, A. P., E-mail: litvin88@gmail.com; Ushakova, E. V.; Fedorov, A. V.; Baranov, A. V. [National Research University of Informational Technologies, Mechanics and Optics, 197101 49, Kronverkskiy pr., Saint Petersburg (Russian Federation)] [National Research University of Informational Technologies, Mechanics and Optics, 197101 49, Kronverkskiy pr., Saint Petersburg (Russian Federation); Berwick, K. [School of Electronic and Communications Engineering, Dublin Institute of Technology, Kevin Street, Dublin 8 (Ireland)] [School of Electronic and Communications Engineering, Dublin Institute of Technology, Kevin Street, Dublin 8 (Ireland)

2013-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "addthis dot harris" 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

Decision making based on optical excitation transfer via near-field interactions between quantum dots  

SciTech Connect (OSTI)

Optical near-field interactions between nanostructured matters, such as quantum dots, result in unidirectional optical excitation transfer when energy dissipation is induced. This results in versatile spatiotemporal dynamics of the optical excitation, which can be controlled by engineering the dissipation processes and exploited to realize intelligent capabilities such as solution searching and decision making. Here, we experimentally demonstrate the ability to solve a decision making problem on the basis of optical excitation transfer via near-field interactions by using colloidal quantum dots of different sizes, formed on a geometry-controlled substrate. We characterize the energy transfer behavior due to multiple control light patterns and experimentally demonstrate the ability to solve the multi-armed bandit problem. Our work makes a decisive step towards the practical design of nanophotonic systems capable of efficient decision making, one of the most important intellectual attributes of the human brain.

Naruse, Makoto, E-mail: naruse@nict.go.jp [Photonic Network Research Institute, National Institute of Information and Communications Technology, 4-2-1 Nukui-kita, Koganei, Tokyo 184-8795 (Japan); Nomura, Wataru; Ohtsu, Motoichi [Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656 (Japan); Aono, Masashi [Earth-Life Science Institute, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguru-ku, Tokyo 152-8550 (Japan); PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012 (Japan); Sonnefraud, Yannick; Drezet, Aurélien; Huant, Serge [Université Grenoble Alpes, Inst. NEEL, F-38000 Grenoble (France); CNRS, Inst. NEEL, F-38042 Grenoble (France); Kim, Song-Ju [WPI Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

2014-10-21T23:59:59.000Z

482

Coherent Optical Spectroscopy of a Single Quantum Dot Via an Off-Resonant Cavity  

E-Print Network [OSTI]

In recent experiments on coupled quantum dot (QD) optical cavity systems a pronounced interaction between the dot and the cavity has been observed even for detunings of many cavity linewidths. This interaction has been attributed to an incoherent phonon-mediated scattering process and is absent in atomic systems. Here, we demonstrate that despite its incoherent nature, this process preserves the signatures of coherent interaction between a QD and a strong driving laser, which may be observed via the optical emission from the off-resonant cavity. Under bichromatic driving of the QD, the cavity emission exhibits spectral features consistent with optical dressing of the QD transition. In addition to revealing new aspects of the off-resonant QD-cavity interaction, this result provides a new, simpler means of coherently probing QDs than traditional approaches and opens the possibility of employing off-resonant cavities to optically interface QD-nodes in quantum networks.

Arka Majumda; Alexander Papageorge; Erik D. Kim; Michal Bajscy; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2011-03-14T23:59:59.000Z

483

Enhanced single-photon emission from a quantum dot in a micropost microcavity  

E-Print Network [OSTI]

We demonstrate a single-photon source based on a quantum dot in a micropost microcavity that exhibits a large Purcell factor together with a small multi-photon probability. For a quantum dot on resonance with the cavity, the spontaneous emission rate is increased by a factor of five, while the probability to emit two or more photons in the same pulse is reduced to 2% compared to a Poisson-distributed source of the same intensity. In addition to the small multi-photon probability, such a strong Purcell effect is important in a single-photon source for improving the photon outcoupling efficiency and the single-photon generation rate, and for bringing the emitted photon pulses closer to the Fourier transform limit.

Jelena Vuckovic; David Fattal; Charles Santori; Glenn Solomon; Yoshihisa Yamamoto

2003-07-03T23:59:59.000Z

484

Local droplet etching – Nanoholes, quantum dots, and air-gap heterostructures  

SciTech Connect (OSTI)

Local droplet etching (LDE) allows the self-organized generation of nanoholes in semiconductor surfaces and is fully compatible with molecular beam epitaxy (MBE). The influence of the process parameters as well as of droplet and substrate materials on the LDE nanohole morphology is discussed. Furthermore, recent applications of LDE, the fabrication of quantum dots by hole filling and the creation of air-gap heterostructures are addressed.

Heyn, Ch.; Sonnenberg, D.; Graf, A.; Kerbst, J.; Stemmann, A.; Hansen, W. [Institute of Applied Physics, University of Hamburg, Jungiusstr. 11, 20355 Hamburg (Germany)

2014-05-15T23:59:59.000Z

485

Observations of Rabi oscillations in a non-polar InGaN quantum dot  

SciTech Connect (OSTI)

Experimental observation of Rabi rotations between an exciton excited state and the crystal ground state in a single non-polar InGaN quantum dot is presented. The exciton excited state energy is determined by photoluminescence excitation spectroscopy using two-photon excitation from a pulsed laser. The population of the exciton excited state is seen to undergo power dependent damped Rabi oscillations.

Reid, Benjamin P. L., E-mail: benjamin.reid@physics.ox.ac.uk; Chan, Christopher C. S.; Taylor, Robert A. [Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom); Kocher, Claudius [Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom); Konstanz University, Konstanz (Germany); Zhu, Tongtong; Oehler, Fabrice; Emery, Robert; Oliver, Rachel A. [Department of Materials Science and Metallurgy, 27 Charles Babbage Road, Cambridge CB3 0FS (United Kingdom)

2014-06-30T23:59:59.000Z

486

Establishment of correlated states in a quantum dot interacting with an acoustic phonon reservoir  

E-Print Network [OSTI]

We investigate the effects of a low frequency (acoustic) phonon bath on the dynamics of a quantum dot modelled as a cascade three-level system. We show that the phonon bath appears to the upper transition of the cascade system as a broadband reservoir of inverted rather than conventional harmonic oscillators. The action of the annihilation and creation operators of the inverted oscillator are interchanges relative to those of the usual harmonic oscillator that it serves as a linear amplifier to the system, and thereby gives rise to unusual features in the dynamics of the quantum dot. We find that the phonon bath, although being in a thermal state, affects the quantum dot as a correlated-type reservoir which results in the decay of the system to a correlated two-photon state with the population distribution no longer obeying a Boltzmann distribution. It is particularly interesting that even for a zero temperature phonon reservoir the steady state is a correlated state which under appropriate conditions on the Rabi frequencies and the damping rates can reduce to a strongly correlated pure state. It is shown that the two-photon correlations result in a significant squeezing and strong two-photon correlations in the radiation field emitted by the quantum dot. The presence of the correlations in the system is manifest in the presence of quantum beats in the time evolution of the populations and the radiation intensity. The effect of the ordinary spontaneous emission on the features induced by the phonon bath is also discussed.

Hui Huang; Gao-xiang Li; Wen-ju Gu; Zbigniew Ficek

2014-08-20T23:59:59.000Z

487

Tuning photoluminescence of reduced graphene oxide quantum dots from blue to purple  

SciTech Connect (OSTI)

Reduced graphene oxide quantum dots (rGOQDs) were synthesized by annealing GOQDs in H{sub 2} atmosphere. The photoluminescence (PL) properties of GOQDs and the rGOQDs samples were investigated. The results showed that compared to GOQDs, a blue to purple tunable PL of rGOQDs can be obtained by regulating the annealing temperature. The increase fraction of the newly formed isolated sp{sup 2} clusters may be responsible for the observed tunable PL.

Liu, Fuchi [Physics Department and Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093 (China); College of Physics and Technology, Guangxi Normal University, Guilin 541004 (China); Tang, Tao; Feng, Qian; Li, Ming; Liu, Yuan; Tang, Nujiang, E-mail: tangnujiang@nju.edu.cn; Zhong, Wei; Du, Youwei [Physics Department and Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093 (China)

2014-04-28T23:59:59.000Z

488

Probing the ladder of dressed states and nonclassical light generation in quantum dot-cavity QED  

E-Print Network [OSTI]

We investigate the photon induced tunneling phenomena in a photonic crystal cavity containing a strongly coupled quantum dot and describe how this tunneling can be used to generate photon states consisting mainly of a particular Fock state. Additionally, we study experimentally the photon-induced tunneling as a function of excitation laser power and frequency and show the signature of second rung of the Jaynes-Cummings Hamiltonian in the observed photon-statistics.

Arka Majumdar; Michal Bajcsy; Jelena Vuckovic

2011-10-21T23:59:59.000Z

489

Second harmonic generation from direct band gap quantum dots pumped by femtosecond laser pulses  

SciTech Connect (OSTI)

We report on nonlinear optical experiments performed on Cu{sub 2}S quantum dots (QDs) pumped by femtosecond laser pulses. We conduct a theoretical simulation and experiments to determine their second harmonic generation characteristics. Furthermore, we demonstrate that the QDs have a second harmonic generation conversion efficiency of up to 76%. Our studies suggest that these Cu{sub 2}S QDs can be used for solar cells, bioimaging, biosensing, and electric detection.

Liu, Liwei, E-mail: liulw@cust.edu.cn; Wang, Yue; Hu, Siyi; Ren, Yu; Huang, Chen [School of Science, Changchun University of Science and Technology, Changchun, Jilin 130022, People's Republic of China and International Joint Research Center for Nanophotonics and Biophotonics, Changchun University of Science and Technology, Changchun, Jilin 130022 (China)

2014-02-21T23:59:59.000Z

490

Quantum dot based memory devices: Current status and future prospect by simulation perspective  

SciTech Connect (OSTI)

We discuss the simulation of floating gate MOSFET memory performance consists of Si/Ge/Si quantum dots for electronics storage nodes with higk-? material as the tunnel oxide. Heterostructure quantum dot was proposed to maintain the good memory performance without losing the long retention characteristic. As the results, retention time could be increase significantly without deteriorating the writing/erasing speed. By selected the dot size of 9–15nm and the tunnel oxide thickness of 2nm, the retention characteristic can reach up to 10{sup 9}s while the writing and erasing time at the order of 10{sup ?6}s. By replace the SiO{sub 2} tunnel oxide with high-? material such as HfO{sub 2}, ZrO{sub 2}, and Y{sub 2}O{sub 3} the leakage current due to the shrinkage of tunnel oxide thickness can be suppressed by the factor of 10 for the EOT lower than ?1nm. Moreover, the charge-trapping that generated by the defect at Si substrate and higk-? material interface are fully considered. We found that, the charge-trapping affects the retention time and memory operation performance. By increasing the charge-trapping depth and width, the memory operation time decrease significantly while the retention characteristic slightly improved.

Darma, Y., E-mail: yudi@fi.itb.ac.id; Rusydi, A., E-mail: yudi@fi.itb.ac.id [Department of Physics, Institut Teknologi Bandung, Ganesa 10 Bandung 40132, Indonesia and NUSNNI-NanoCore, Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542 and Singapore Synchrotron Light Source, National U (Singapore)

2014-02-24T23:59:59.000Z

491

Evaluating charge noise acting on semiconductor quantum dots in the circuit quantum electrodynamics architecture  

SciTech Connect (OSTI)

We evaluate the charge noise acting on a GaAs/GaAlAs based semiconductor double quantum dot dipole-coupled to the voltage oscillations of a superconducting transmission line resonator. The in-phase (I) and the quadrature (Q) components of the microwave tone transmitted through the resonator are sensitive to charging events in the surrounding environment of the double dot with an optimum sensitivity of 8.5×10{sup ?5}?e/?(Hz). A low frequency 1/f type noise spectrum combined with a white noise level of 6.6×10{sup ?6} e{sup 2}/Hz above 1?Hz is extracted, consistent with previous results obtained with quantum point contact charge detectors on similar heterostructures. The slope of the 1/f noise allows to extract a lower bound for the double-dot charge qubit dephasing rate which we compare to the one extracted from a Jaynes-Cummings Hamiltonian approach. The two rates are found to be similar emphasizing that charge noise is the main source of dephasing in our system.

Basset, J.; Stockklauser, A.; Jarausch, D.-D.; Frey, T.; Reichl, C.; Wegscheider, W.; Wallraff, A.; Ensslin, K.; Ihn, T. [Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich (Switzerland)

2014-08-11T23:59:59.000Z

492

Heat induced nanoforms of zinc oxide quantum dots and their characterization  

SciTech Connect (OSTI)

In our studies we observed heat induced phase transitions of Zinc oxide quantum dots at 60, 200, 360 and 400 Degree-Sign C, where all the transitions were irreversible except the transition at 60 Degree-Sign C which wasa reversible one. The phase transition at 60 Degree-Sign C indicated a heat induced conformational change which was supported here by studying polarizing micrographs of ZnO quantum dots thin film. The X-ray diffraction studies of the sample fired at different temperatures as indicated by the thermal analysis were performed in order to understand the changes occurred due to transitions. The study also indicated a new and simple approach to develop ZnO nanorods by just thermal decomposition of the ZnO quantum dots firing in furnace at 200 Degree-Sign C with 2h soaking. In order to have a proper insight of the structural changes we performed scanning electron microscopy. Optical characterization was done by UV-Vis and fluorescence spectrophotometer.

Dey, Anindita [Jadavpur University, Physics Department (India); Basu, Ruma [Jogamaya Devi College, Physics department (India); Das, Sukhen, E-mail: sukhendasju@gmail.com; Nandy, Papiya [Jadavpur University, Physics Department (India)

2012-02-15T23:59:59.000Z

493

Spectral properties of a hybrid-qubit model based on a two-dimensional quantum dot  

E-Print Network [OSTI]

The design and study of hybrid qubits is driven by their ability to get along the best of charge qubits and of spin qubits, {\\em i.e.} the speed of operation of the former and the very slow decoherence rates of the latter ones. There are several proposals to implement hybrid qubits, this works focuses on the spectral properties of an one-electron hybrid qubit. By design, the information would be stored in the electronic spin and the switching between the qubit basis states would be achieved using an external ac electric field. The electron is confined in a two-dimensional quantum dot, whose confining potential is given by a quartic potential, features that are typical of GaAS quantum dots. Besides the confining potential that characterizes the quantum dot there are two static magnetic fields applied to the system, one is a large constant Zeeman field and the other one has a constant gradient. We study the spectral properties of the model Hamiltonian, a Scr\\"odinger-Pauli Hamiltonian with realistic parameters, using the Ritz method. In particular, we look for regions of the parameter space where the lowest eigenenergies and their eigenfunctions allow to define a qubit which is stable under perturbations to the design parameters. We put special attention to the constraints that the design imposes over the magnetic fields, the tuning of the energy gap between the qubit states and the expectation value of the spin operator where the information would be stored.

Alba Y. Ramos; Omar Osenda

2015-03-27T23:59:59.000Z

494

Strain-induced vertical self-organization of semiconductor quantum dots: A computational study  

SciTech Connect (OSTI)

Atomistic strain simulations based on the valence force field method are employed to study the vertical arrangements of semiconductor quantum dot (QD) multilayers. The effects of the QD shape, dimensions, and materials parameters are systematically investigated, varying independently the following parameters: spacer width H, QD lateral spacing D, base b, and height h, slope of the side facets, elastic properties of the dot and the substrate materials, and lattice mismatch between the dot and the substrate. The transition between vertically aligned and anti-aligned structures is found to be determined mainly by the ratios H/D and b/D, as well as by the strain anisotropy of the substrate and to a lesser extent of the QD. The dependence on the QD height h is significant only for steep side facets and large aspect ratios h/b, and the effects of the lattice mismatch strain and the bulk elastic moduli are found to be negligible. The comparison with experimental data shows an excellent agreement with the results from the simulations, demonstrating that the presented analysis results in precise theoretical predictions for the vertical self-organization regime in a wide range of QD materials systems.

Shtinkov, N., E-mail: nshtinkov@uottawa.ca [Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa (Ontario) K1N 6N5 (Canada)

2013-12-28T23:59:59.000Z

495

Energy Loss of Neutrinos in 20 M{sub {center_dot}} and 40 M{sub {center_dot}} Massive Stars  

SciTech Connect (OSTI)

The progress from the theoretical and experimental aspects in neutrino physics shines light into neutrino physics as well as in astrophysics. It is known that when neutrinos pass through a medium, the neutrinos interact with electrons before emerging from the stars with an effective potential energy produced due to coherent forward scatterings that occurred in the medium. This potential engenders significant changes in the neutrino masses and their mixing in the medium. Thus electron neutrinos would oscillate into different mass eigenstate and this is dependent on the energy of the neutrinos. Some of the energy will be lost in the coherent scattering with the electrons by the charged current interaction. We have calculated the energy loss of the neutrinos by using a stopping power equation for both rotating and non-rotating 20 M{sub {center_dot}} and 40 M{sub {center_dot}} stars. The total energy loss of neutrinos depends on the electron density in the stars and on the survival probability of the electron neutrino. For high electron density profile and the survival probability, the energy loss will be significant.

Sofiah Ahmad, Nor; Yusof, Norhasliza; Abu Kassim, Hasan [Department of Physics, University of Malaya, 50603 Kuala Lumpur (Malaysia)

2011-03-30T23:59:59.000Z

496

Photoconductivity of structures based on the SnO{sub 2} porous matrix coupled with core-shell CdSe/CdS quantum dots  

SciTech Connect (OSTI)

Embedding of quantum dots into porous oxide matrixes is a perspective technique for photosensitization of a structure. We show that the sensitization efficiency may be increased by the use of core-shell quantum dots. It is demonstrated that the photoresponse amplitude in a SnO{sub 2} porous matrix with CdSe/CdS quantum dots depends non-monotonously on the number of atomic layers in a shell. The best results are obtained for SnO{sub 2} matrixes coupled with the quantum dots with three atomic layers of a shell. Mechanisms responsible for the structure sensitization are discussed.

Drozdov, K. A.; Kochnev, V. I.; Dobrovolsky, A. A.; Khokhlov, D. R. [Department of Physics, Moscow State University, 119991 Moscow (Russian Federation)] [Department of Physics, Moscow State University, 119991 Moscow (Russian Federation); Popelo, A. V. [Department of Materials Science, Moscow State University, 119991 Moscow (Russian Federation)] [Department of Materials Science, Moscow State University, 119991 Moscow (Russian Federation); Rumyantseva, M. N.; Gaskov, A. M.; Ryabova, L. I. [Department of Chemistry, Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Moscow State University, 119991 Moscow (Russian Federation); Vasiliev, R. B. [Department of Materials Science, Moscow State University, 119991 Moscow (Russian Federation) [Department of Materials Science, Moscow State University, 119991 Moscow (Russian Federation); Department of Chemistry, Moscow State University, 119991 Moscow (Russian Federation)

2013-09-23T23:59:59.000Z

497

Influence of Cationic Precursors on CdS Quantum-Dot-Sensitized Solar Cell Prepared by Successive Ionic Layer Adsorption and  

E-Print Network [OSTI]

as 15% was achieved for perovskite-sensitized solar cells.7 As a derivative of dye-sensitized solarInfluence of Cationic Precursors on CdS Quantum-Dot-Sensitized Solar Cell Prepared by Successive (QDs) onto porous oxide films for quantum-dot-sensitized solar cell (QDSC) applications. In this work

Cao, Guozhong

498

Transition to Landau levels in graphene quantum dots F. Libisch, 1, * S. Rotter, 1 J. Gttinger, 2 C. Stampfer, 2,3 and J. Burgdrfer 1  

E-Print Network [OSTI]

Transition to Landau levels in graphene quantum dots F. Libisch, 1, * S. Rotter, 1 J. Güttinger, 2 investigate the electronic eigenstates of graphene quantum dots of realistic size #up to 80 nm diameter graphene lattice structure, bulk defects, and localization effects at the edges. Key to the understanding

Florian, Libisch

499

Transition to Landau levels in graphene quantum dots F. Libisch,1,* S. Rotter,1 J. Gttinger,2 C. Stampfer,2,3 and J. Burgdrfer1  

E-Print Network [OSTI]

Transition to Landau levels in graphene quantum dots F. Libisch,1,* S. Rotter,1 J. Güttinger,2 C the electronic eigenstates of graphene quantum dots of realistic size up to 80 nm diameter in the presence-level regime at high fields. Details of this transition sensitively depend on the underlying graphene lattice

Florian, Libisch

500

An electrically driven quantum dot-in-nanowire visible single photon source operating up to 150 K  

SciTech Connect (OSTI)

We demonstrate electrically pumped single photon emission up to 150 K from a single InGaN quantum dot embedded in a GaN nanowire junction diode. The InGaN dot-in-nanowire p-n junctions were grown on silicon by molecular beam epitaxy. The exciton electroluminescence from individual dot-in-nanowires is in the green spectral range (? ? 520 nm) and is detectable up to 150 K. Second order autocorrelation measurements performed at the exciton energy at an ambient temperature of 125 K show a background corrected g{sup (2)}(0) equal to 0.35, indicating dominant single photon emission. The steady state nanowire temperature under these conditions is estimated to be 150 K due to Joule heating induced by the large nanowire series resistance. Time resolved photoluminescence measurements yield an exciton radiative lifetime of 1.1 ns.

Deshpande, Saniya; Bhattacharya, Pallab [Center for Photonics and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)] [Center for Photonics and Multiscale Nanomaterials, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109-2122 (United States)

2013-12-09T23:59:59.000Z