All-optical neural-net-like image processing with photosensitive nonlinear nematic film |
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| Authors: | Khoo I C Chen K Diaz A |
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| Affiliation: | Department of Electrical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, USA. ick1@psu.edu |
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| Abstract: | Received June 30, 2003 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. |
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