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

M. Y. Shih, A. Shishido, I. C. Khoo

Research output: Contribution to journalArticle

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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.

Original languageEnglish (US)
Pages (from-to)1140-1142
Number of pages3
JournalOptics Letters
Issue number15
StatePublished - Aug 1 2001


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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