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

Carr, Dustin Wade; Bogart, Gregory Robert

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

Abstract

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

Inventors:

Carr, Dustin Wade ^[1]; Bogart, Gregory Robert ^[2]

Albuquerque, NM
Corrales, NM

Issue Date:: 2007-02-06

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 902828

Patent Number(s):: 7173764

Application Number:: 10/829,782

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

Show more

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B5/1828 - {having means for producing variable diffraction
G02B26/0808 - {by means of one or more diffracting elements}

Show less

DOE Contract Number:: AC04-94AL85000

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Carr, Dustin Wade, and Bogart, Gregory Robert. Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission.  United States: N. p., 2007. 
        Web.

Copy to clipboard


                    Carr, Dustin Wade, & Bogart, Gregory Robert. Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission.  United States.

Copy to clipboard


                    Carr, Dustin Wade, and Bogart, Gregory Robert. Tue .  
        "Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission".  United States.  https://www.osti.gov/servlets/purl/902828.

Copy to clipboard


                    
@article{osti_902828,

  title        = {Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission},

  author       = {Carr, Dustin Wade and Bogart, Gregory Robert},

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

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2007},

  month        = {2}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Laterally deformable nanomechanical zeroth-order gratings: anomalous diffraction studied by rigorous coupled-wave analysis
journal, January 2003

Carr, Dustin W.; Sullivan, J. P.; Friedmann, T. A.
Optics Letters, Vol. 28, Issue 18
https://doi.org/10.1364/OL.28.001636

Thick polysilicon surface-micromachined optically sensed accelerometer
conference, March 1999

Chen, Yi-Hsing; Wang, Yvonne Y.; Tien, Norman C.
Optoelectronics '99 - Integrated Optoelectronic Devices, SPIE Proceedings
https://doi.org/10.1117/12.342790

Measurement of a laterally deformable optical MEMS grating transducer
conference, January 2004

Carr, Dustin W.; Keeler, Bianca E. N.; Sullivan, John P.
Micromachining and Microfabrication, SPIE Proceedings
https://doi.org/10.1117/12.532340

Similar Records in DOE Patents and OSTI.GOV collections:

Nanomechanical near-field grating apparatus and acceleration sensor formed therefrom

Patent Carr, Dustin Wade [Albuquerque, NM]; Bogart, Gregory Robert [Corrales, NM]; Keeler, Bianca E. N. [Albuquerque, NM]

A nanomechanical near-field grating device is disclosed which includes two sub-gratings vertically spaced by a distance less than or equal to an operating wavelength. Each sub-grating includes a plurality of line-elements spaced apart by a distance less than or equal to the operating wavelength. A light source (e.g., a VCSEL or LED) can provide light at the operating wavelength for operation of the device. The device can operate as an active grating, with the intensity of a reflected or transmitted portion of the light varying as the relative positions of the sub-gratings are controlled by an actuator. The device canmore » « less
Full Text Available
Optical sensor comprising diffraction gratings with functionalized pores and method of detecting analytes using the sensor

Patent Weiss, Sharon M.; Ryckman, Judson D.; Kang, Christopher; ...

Diffraction gratings comprising a substrate with protrusions extending therefrom. In one embodiment, the protrusions are made of a porous material, for example porous silicon with a porosity of greater than about 10%. The diffraction grating may also be constructed from multiple layers of porous material, for example porous silicon with a porosity of greater than about 10%, with protrusion of attached thereto. In some embodiments the protrusions may be made from photoresist or another polymeric material. The gratings are the basis for sensitive sensors. In some embodiments, the sensors are functionalized with selective binding species, to produce sensors that specificallymore » « less
Full Text Available
Method and apparatus for steady-state magnetic measurement of poloidal magnetic field near a tokamak plasma

Patent Woolley, Robert D [Hillsborough, NJ]

A method and apparatus for the steady-state measurement of poloidal magnetic field near a tokamak plasma, where the tokamak is configured with respect to a cylindrical coordinate system having z, phi (toroidal), and r axes. The method is based on combining the two magnetic field principles of induction and torque. The apparatus includes a rotor assembly having a pair of inductive magnetic field pickup coils which are concentrically mounted, orthogonally oriented in the r and z directions, and coupled to remotely located electronics which include electronic integrators for determining magnetic field changes. The rotor assembly includes an axle oriented inmore » « less
Full Text Available
Method and apparatus for passive optical dosimeter comprising caged dye molecules

Patent Sandison, David R [Edgewood, NM]

A new class of ultraviolet dosimeters is made possible by exposing caged dye molecules, which generate a dye molecule on exposure to ultraviolet radiation, to an exterior environment. Applications include sunburn monitors, characterizing the UV exposure history of UV-sensitive materials, especially including structural plastics, and use in disposable `one-use` optical equipment, especially medical devices.
Full Text Available
Microchannel apparatus comprising plural microchannels and methods of conducting unit operations

Patent Wegeng, Robert S [Richland, WA]; TeGrotenhuis, Ward E [Kennewick, WA]; Whyatt, Greg A [West Richland, WA]

Microchannel apparatus comprising a header and plural flow microchannels is described in which orifices connect the header and the flow microchannels. The orifices constrict flow. The ratio of the cross-sectional area of each of the orifices to the cross-sectional area of the flow microchannels connected to the orifices is between 0.0005 and 0.1. Also described is microchannel apparatus for conducting unit operations in which a device comprises two arrays of microchannels, and a unit operation is conducted on a fluid as it passes through the first set of microchannels and into a header where a second unit operation is performed,more » « less
Full Text Available

Similar Records

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

Abstract

Citation Formats

Laterally deformable nanomechanical zeroth-order gratings: anomalous diffraction studied by rigorous coupled-wave analysis journal, January 2003

Thick polysilicon surface-micromachined optically sensed accelerometer conference, March 1999

Measurement of a laterally deformable optical MEMS grating transducer conference, January 2004

Laterally deformable nanomechanical zeroth-order gratings: anomalous diffraction studied by rigorous coupled-wave analysis
journal, January 2003

Thick polysilicon surface-micromachined optically sensed accelerometer
conference, March 1999

Measurement of a laterally deformable optical MEMS grating transducer
conference, January 2004