A submicron metal grid mirror liquid crystal light valve for optical processing applications

U. Efron; A. Au; C. S. Bak; N. W. Goodwin; P. G. Reif; H. L. Garvin; W. Byles; Y. Owechko; M. S. Welkowsky

doi:10.1117/12.962259

A submicron metal grid mirror liquid crystal light valve for optical processing applications

U. Efron, A. Au, C. S. Bak, N. W. Goodwin, P. G. Reif, H. L. Garvin, W. Byles, Y. Owechko, M. S. Welkowsky

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

A submicron metal grid mirror was incorporated into the structure of a silicon liquid light valve. In our experiment, a 0.5 μm-period, aluminum wire grid mirror was used in conjunction with a 90°-twisted nematic configuration. A sharp threshold with a peak-to-threshold ratio of 3:1 was experimentally observed. The threshold intensity level was tunable from 2.5 μW/cm² to 50 μW/cm² by changing the bias voltage from about 5 to 25 volts. These properties allow the polarization-sensitive mirror-based LCLV to be used as a non-linear SLM with applications in optical computing (bistable device) and adaptive image thresholding. The device can also be used as an interfacing device for an optical co-processor as well as for optical implementation of Hopfield-Anderson association and phase conjugation.

Original language	English
Pages (from-to)	591-606
Number of pages	16
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	1151
DOIs	https://doi.org/10.1117/12.962259
State	Published - 5 Feb 1990
Externally published	Yes
Event	Optical Information Processing Systems and Architectures 1989 - San Diego, United States Duration: 7 Aug 1989 → 11 Aug 1989

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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Cite this

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title = "A submicron metal grid mirror liquid crystal light valve for optical processing applications",

abstract = "A submicron metal grid mirror was incorporated into the structure of a silicon liquid light valve. In our experiment, a 0.5 μm-period, aluminum wire grid mirror was used in conjunction with a 90°-twisted nematic configuration. A sharp threshold with a peak-to-threshold ratio of 3:1 was experimentally observed. The threshold intensity level was tunable from 2.5 μW/cm2 to 50 μW/cm2 by changing the bias voltage from about 5 to 25 volts. These properties allow the polarization-sensitive mirror-based LCLV to be used as a non-linear SLM with applications in optical computing (bistable device) and adaptive image thresholding. The device can also be used as an interfacing device for an optical co-processor as well as for optical implementation of Hopfield-Anderson association and phase conjugation.",

author = "U. Efron and A. Au and Bak, {C. S.} and Goodwin, {N. W.} and Reif, {P. G.} and Garvin, {H. L.} and W. Byles and Y. Owechko and Welkowsky, {M. S.}",

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T1 - A submicron metal grid mirror liquid crystal light valve for optical processing applications

AU - Efron, U.

AU - Au, A.

AU - Bak, C. S.

AU - Goodwin, N. W.

AU - Reif, P. G.

AU - Garvin, H. L.

AU - Byles, W.

AU - Owechko, Y.

AU - Welkowsky, M. S.

PY - 1990/2/5

Y1 - 1990/2/5

N2 - A submicron metal grid mirror was incorporated into the structure of a silicon liquid light valve. In our experiment, a 0.5 μm-period, aluminum wire grid mirror was used in conjunction with a 90°-twisted nematic configuration. A sharp threshold with a peak-to-threshold ratio of 3:1 was experimentally observed. The threshold intensity level was tunable from 2.5 μW/cm2 to 50 μW/cm2 by changing the bias voltage from about 5 to 25 volts. These properties allow the polarization-sensitive mirror-based LCLV to be used as a non-linear SLM with applications in optical computing (bistable device) and adaptive image thresholding. The device can also be used as an interfacing device for an optical co-processor as well as for optical implementation of Hopfield-Anderson association and phase conjugation.

AB - A submicron metal grid mirror was incorporated into the structure of a silicon liquid light valve. In our experiment, a 0.5 μm-period, aluminum wire grid mirror was used in conjunction with a 90°-twisted nematic configuration. A sharp threshold with a peak-to-threshold ratio of 3:1 was experimentally observed. The threshold intensity level was tunable from 2.5 μW/cm2 to 50 μW/cm2 by changing the bias voltage from about 5 to 25 volts. These properties allow the polarization-sensitive mirror-based LCLV to be used as a non-linear SLM with applications in optical computing (bistable device) and adaptive image thresholding. The device can also be used as an interfacing device for an optical co-processor as well as for optical implementation of Hopfield-Anderson association and phase conjugation.

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Optical Information Processing Systems and Architectures 1989

Y2 - 7 August 1989 through 11 August 1989

ER -

A submicron metal grid mirror liquid crystal light valve for optical processing applications

Abstract

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