Joint Transform Correlation Using An Amorphous Silicon Ferroelectric Liquid Crystal Spatial Light Modulator

David A. Jared; Kristina M. Johnson; Garret Moddel

doi:10.1117/12.962214

5 February 1990 Joint Transform Correlation Using An Amorphous Silicon Ferroelectric Liquid Crystal Spatial Light Modulator

David A. Jared, Kristina M. Johnson, Garret Moddel

Author Affiliations +

Proceedings Volume 1151, Optical Information Processing Systems and Architectures; (1990) https://doi.org/10.1117/12.962214
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

A joint transform correlator is demonstrated that utilizes a high-speed optically addressed spatial light modulator in the Fourier plane consisting of an hydrogenated amorphous silicon photodiode and a ferroelectric liquid crystal modulator. Results are shown for binary-amplitude modulation using a smectic C* ferroelectric liquid crystal operating at 4600frame/s, 20:1 contrast ratio, and 38lp/mm.

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David A. Jared, Kristina M. Johnson, and Garret Moddel "Joint Transform Correlation Using An Amorphous Silicon Ferroelectric Liquid Crystal Spatial Light Modulator", Proc. SPIE 1151, Optical Information Processing Systems and Architectures, (5 February 1990); https://doi.org/10.1117/12.962214

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