Abstract

We present a nonvolatile optically addressed spatial light modulator for use in optical processing and projection systems. The device utilizes the spatial nonvolatile switching of a ferroelectric liquid crystal addressed through a photoconducting medium. One obtains an analog representation similar to halftone printing by threshold switching of micro-optically modified pixel intensity profiles. An experimental demonstration of the device is described, together with qualitative and theoretical interpretation of the results.

© 1996 Optical Society of America

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