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

doi:10.1364/OL.26.001140

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

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

74 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1140-1142
Number of pages	3
Journal	Optics Letters
Volume	26
Issue number	15
DOIs	https://doi.org/10.1364/OL.26.001140
State	Published - Aug 1 2001

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.26.001140

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

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.",

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AU - Khoo, I. C.

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AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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