Liquid crystal televisions for use as spatial light modulators in a complex optical correlator

Robin E. Kilpatrick; John H. Gilby; Sally E. Day; David R. Selviah

doi:10.1117/12.304751

23 March 1998 Liquid crystal televisions for use as spatial light modulators in a complex optical correlator

Robin E. Kilpatrick, John H. Gilby, Sally E. Day, David R. Selviah

Proceedings Volume 3386, Optical Pattern Recognition IX; (1998) https://doi.org/10.1117/12.304751
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

A method is presented for selecting the optimum polarizer configurations for a complex optical correlator. Two twisted nematic (TN) liquid crystal televisions (LCTVs) are used to modulate intensity and phase. The profiles of intensity and phase modulation vs. applied pixel voltage are determined using a Jones calculus model of the Philips P3.4 TN LCTV between polarizers. This allows selection of separate polarizer orientations which yield the highest ranges of intensity and phase modulation. The optimum configurations provide continuous intensity modulation with approximately 261 degrees of phase modulation.

Citation Download Citation

Robin E. Kilpatrick, John H. Gilby, Sally E. Day, and David R. Selviah "Liquid crystal televisions for use as spatial light modulators in a complex optical correlator", Proc. SPIE 3386, Optical Pattern Recognition IX, (23 March 1998); https://doi.org/10.1117/12.304751

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