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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 15 — Aug. 1, 2001
  • pp: 1140–1142

All-optical image processing by means of a photosensitive nonlinear liquid-crystal film: edge enhancement and image addition–subtraction

M. Y. Shih, A. Shishido, and I. C. Khoo  »View Author Affiliations


Optics Letters, Vol. 26, Issue 15, pp. 1140-1142 (2001)
http://dx.doi.org/10.1364/OL.26.001140


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Abstract

We demonstrate two simple yet efficient all-optical image-processing techniques that use nonlinear photosensitive dye-doped nematic liquid-crystal films, namely, edge enhancement and image addition–subtraction operations. These films require no external bias and function at much lower optical powers and shorter response times than other conventional methods.

© 2001 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.0100) Image processing : Image processing
(160.3710) Materials : Liquid crystals
(190.0190) Nonlinear optics : Nonlinear optics

Citation
M. Y. Shih, A. Shishido, and I. C. Khoo, "All-optical image processing by means of a photosensitive nonlinear liquid-crystal film: edge enhancement and image addition–subtraction," Opt. Lett. 26, 1140-1142 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-15-1140

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