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All-optical neural-net-like image processing with photosensitive nonlinear nematic film

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Abstract

We demonstrate that some neural-net image-processing operations can be realized in an all-optical manner by use of the natural diffraction property of light in conjunction with the photosensitivity and optical nonlinearities of a transparent thin film. An example of image edge enhancement is illustrated with photosensitive supranonlinear nematic liquid-crystal films.

© 2003 Optical Society of America

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