Abstract

This paper discusses optically controlled structures with a modulating liquid-crystal layer and an Sb2S3 photoconductor with a sublayer made from germanium glass of composition As_17.6S_26.4Ge_17.5Se_38.5 (IKS24). It is shown that the response rate of the indicated structure is greater by a factor of 4 than that of the Sb2S3-liquid-crystal control structure with no sublayer. With reversible writing of thin holograms, a recording regime with a nonsymmetrical line profile is implemented that makes it possible to obtain a diffraction efficiency of 41.5% on the structures with a sublayer.

Development of a gallium-doped germanium far-infrared photoconductor direct hybrid two-dimensional array

Mikio Fujiwara, Takanori Hirao, Mitsunobu Kawada, Hiroshi Shibai, Shuji Matsuura, Hidehiro Kaneda, Mikhail Patrashin, and Takao Nakagawa
Appl. Opt. 42(12) 2166-2173 (2003)

Amorphous silicon photoconductor in a liquid crystal spatial light modulator

Paul R. Ashley and Jack H. Davis
Appl. Opt. 26(2) 241-246 (1987)

Bistability and thresholding by a new photoconductor-twisted nematic liquid crystal device with optical feedback

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Appl. Opt. 20(8) 1424-1432 (1981)

Liquid crystal spatial light modulator with a transmissive amorphous silicon photoconductor

Paul R. Ashley, Jack H. Davis, and Tae Kwan Oh
Appl. Opt. 27(9) 1797-1802 (1988)

Spatial light modulator based on a deformed-helix ferroelectric liquid crystal and a thin a-Si:H amorphous photoconductor

Gil B. Cohen, Roman Pogreb, Klara Vinokur, and Dan Davidov
Appl. Opt. 36(2) 455-459 (1997)