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Proceedings Paper

Optical thresholding with a liquid crystal light valve
Author(s): I. Shariv; Asher A. Friesem
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Paper Abstract

A technique for obtaining a sharp output-to--input response from optically addressed spatial light modulators is presented. In this technique, a portion of the output light is fed back into the input. By controlling the portion of light that is fed back it is possible to change the slope and the shape of the response curve of the modulator so as to improve the sensitivity to external inputs. Experimental results demonstrating sharp thresholding by exploiting both positive and negative feedbacks with a liquid crystal light valve SLM are illustrated.

Paper Details

Date Published: 1 April 1991
PDF: 6 pages
Proc. SPIE 1442, 7th Mtg in Israel on Optical Engineering, (1 April 1991); doi: 10.1117/12.49064
Show Author Affiliations
I. Shariv, Weizmann Institute of Science (Israel)
Asher A. Friesem, Weizmann Institute of Science (Israel)


Published in SPIE Proceedings Vol. 1442:
7th Mtg in Israel on Optical Engineering

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