Photorefractive mesogenic composites for optical image processing

Akira Emoto; Hiroshi Ono; Nobuhiro Kawatsuki

doi:10.1117/12.452448

5 November 2002 Photorefractive mesogenic composites for optical image processing

Akira Emoto, Hiroshi Ono, Nobuhiro Kawatsuki

Proceedings Volume 4802, Organic Photorefractive and Photosensitive Materials for Holographic Applications; (2002) https://doi.org/10.1117/12.452448
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

We have demonstrated the two types of applications in the field of the optical information processing by using the photorefractive mesogenic composite consisting of a mixture of three components including a functionalized copolymer, a low-molar-mass liquid crystal, and sensitizing dye. One of the applications is to amplify the two-dimensional optical image by means of the Fourier transform geometry with the two-beam coupling optical system. The other is to enhance the edge of the optical image using Fourier transform holographic geometry. We calculated the expected images on the basis of the Fourier transform optics and the photorefractive properties of the mesogenic composite, and obtained good agreement with the observed images and the theoretical expectation.

Citation Download Citation

Akira Emoto, Hiroshi Ono, and Nobuhiro Kawatsuki "Photorefractive mesogenic composites for optical image processing", Proc. SPIE 4802, Organic Photorefractive and Photosensitive Materials for Holographic Applications, (5 November 2002); https://doi.org/10.1117/12.452448

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KEYWORDS

Composites

Image enhancement

Fourier transforms

Liquid crystals

3D image reconstruction

Holography

Diffraction gratings

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