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Proceedings Paper

Controlling of monomer diffusion in an organic-inorganic hybrid photopolymer film for holographic memory
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Paper Abstract

Organic-inorganic nanocomposite films were prepared by dispersing an aromatic methacrylic monomer and a photo-initiator in organic-inorganic hybrid sol-gel matrices. The film properties could be controlled by optimizing the content of an organically modified silica precursor (TSPEG) in the sol-gel matrices. The photopolymer film modified with the organic chain (TSPEG) showed high diffraction efficiency (>90%) under an optimized condition. High diffraction efficiency could be ascribed to the fast diffusion and efficient polymerization of monomers under interference light to generate refractive index modulation. The TSPEG modified photopolymer film could be successfully used for holographic memory. Angular selectivity of the film were 0.46 ~ 0.16 depending on the film thickness in the incident angles between 20° ~ 70°. A digital holographic image and a real object were recorded successfully in the photopolymer film.

Paper Details

Date Published: 22 October 2004
PDF: 9 pages
Proc. SPIE 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X, (22 October 2004); doi: 10.1117/12.559240
Show Author Affiliations
Eunkyoung Kim, Yonsei Univ. (South Korea)
Nam Kim, Chungbuk National Univ. (South Korea)
Chang-Won Shin, Prism Technology Inc. (South Korea)
Jiyoung Park, Yonsei Univ. (South Korea)
Sang-Geun Gil, Suwon Univ. (South Korea)

Published in SPIE Proceedings Vol. 5560:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X
Francis T. S. Yu; Ruyan Guo; Shizhuo Yin, Editor(s)

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