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Optics Letters

Optics Letters


  • Vol. 28, Iss. 23 — Dec. 1, 2003
  • pp: 2372–2374

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

I. C. Khoo, K. Chen, and A. Diaz  »View Author Affiliations

Optics Letters, Vol. 28, Issue 23, pp. 2372-2374 (2003)

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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

OCIS Codes
(100.1160) Image processing : Analog optical image processing
(100.5010) Image processing : Pattern recognition
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(190.5330) Nonlinear optics : Photorefractive optics
(190.5940) Nonlinear optics : Self-action effects

I. C. Khoo, K. Chen, and A. Diaz, "All-optical neural-net-like image processing with photosensitive nonlinear nematic film," Opt. Lett. 28, 2372-2374 (2003)

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