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Bistable spatial light modulator using a ferroelectric liquid crystal

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Abstract

A bistable spatial light modulator is developed by utilizing optical bistability of ferroelectric liquid-crystal molecules. Both positive and negative images are read out by changing the polarity of applied electric pulses. A binary image is stored for more than 2 h, and gray-level operation is also possible during the gradual decay after writing.

© 1990 Optical Society of America

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