Reflective coherent spatial light modulator

Title: Reflective coherent spatial light modulator

Abstract

A reflective coherent spatial light modulator (RCSLM) includes a subwavelength resonant grating structure (SWS), the SWS including at least one subwavelength resonant grating layer (SWL) have a plurality of areas defining a plurality of pixels. Each pixel represents an area capable of individual control of its reflective response. A structure for modulating the resonant reflective response of at least one pixel is provided. The structure for modulating can include at least one electro-optic layer in optical contact with the SWS. The RCSLM is scalable in both pixel size and wavelength. A method for forming a RCSLM includes the steps of selecting a waveguide material and forming a SWS in the waveguide material, the SWS formed from at least one SWL, the SWL having a plurality of areas defining a plurality of pixels.

Inventors:

Simpson, John T ^[1]; Richards, Roger K ^[1]; Hutchinson, Donald P ^[1]; Simpson, Marcus L ^[1]

Knoxville, TN

Issue Date:: 2003-04-22

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 921315

Patent Number(s):: 6552842

Application Number:: 09/834,422

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION

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G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
G02F1/011 - {in optical waveguides

H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04N - PICTORIAL COMMUNICATION, e.g. TELEVISION
H04N5/7441 - {the modulator being an array of liquid crystal cells}
H04N9/3129 - {scanning a light beam on the display screen

G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
G02F2201/123 - pixel
G02F2201/305 - diffraction grating
G02F2202/107 - Zn×S or Zn×Se and alloys

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DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Simpson, John T, Richards, Roger K, Hutchinson, Donald P, and Simpson, Marcus L. Reflective coherent spatial light modulator.  United States: N. p., 2003. 
        Web.

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                    Simpson, John T, Richards, Roger K, Hutchinson, Donald P, & Simpson, Marcus L. Reflective coherent spatial light modulator.  United States.

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                    Simpson, John T, Richards, Roger K, Hutchinson, Donald P, and Simpson, Marcus L. Tue .  
        "Reflective coherent spatial light modulator".  United States.  https://www.osti.gov/servlets/purl/921315.

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@article{osti_921315,

  title        = {Reflective coherent spatial light modulator},

  author       = {Simpson, John T and Richards, Roger K and Hutchinson, Donald P and Simpson, Marcus L},

  abstractNote = {A reflective coherent spatial light modulator (RCSLM) includes a subwavelength resonant grating structure (SWS), the SWS including at least one subwavelength resonant grating layer (SWL) have a plurality of areas defining a plurality of pixels. Each pixel represents an area capable of individual control of its reflective response. A structure for modulating the resonant reflective response of at least one pixel is provided. The structure for modulating can include at least one electro-optic layer in optical contact with the SWS. The RCSLM is scalable in both pixel size and wavelength. A method for forming a RCSLM includes the steps of selecting a waveguide material and forming a SWS in the waveguide material, the SWS formed from at least one SWL, the SWL having a plurality of areas defining a plurality of pixels.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2003},

  month        = {4}

}

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Works referenced in this record:

Optically enhancing the small electro-optical effect of a fast-switching liquid-crystal mixture
journal, June 2000

Xu, Huan
Optical Engineering, Vol. 39, Issue 6
https://doi.org/10.1117/1.602530

Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings
journal, January 1994

Grann, Eric B.; Moharam, M. G.; Pommet, Drew A.
Journal of the Optical Society of America A, Vol. 11, Issue 10
https://doi.org/10.1364/JOSAA.11.002695

Optical information processing and beyond
journal, May 1996

Ichioka, Y.; Iwaki, T.; Matsuoka, K.
Proceedings of the IEEE, Vol. 84, Issue 5
https://doi.org/10.1109/5.488741

Subwavelength structures and their use in diffractive optics
journal, March 1996

Kipfer, Peter
Optical Engineering, Vol. 35, Issue 3
https://doi.org/10.1117/1.600640

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Similar Records

Title: Reflective coherent spatial light modulator

Abstract

Citation Formats

Optically enhancing the small electro-optical effect of a fast-switching liquid-crystal mixture journal, June 2000

Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings journal, January 1994

Optical information processing and beyond journal, May 1996

Subwavelength structures and their use in diffractive optics journal, March 1996

Optically enhancing the small electro-optical effect of a fast-switching liquid-crystal mixture
journal, June 2000

Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings
journal, January 1994

Optical information processing and beyond
journal, May 1996

Subwavelength structures and their use in diffractive optics
journal, March 1996