Two-way holographic image storage in photosensitive polymers

Yasuo Aoshima; Chikara Egami; Yoshimasa Kawata; Okihiro Sugihara; Masaaki Tsuchimori; Osamu Watanabe; Yanlong Che; Hisashi Fujimura; Naomichi Okamoto

Two-way holographic image storage in photosensitive polymers

Yasuo Aoshima, Chikara Egami, Yoshimasa Kawata, Okihiro Sugihara, Masaaki Tsuchimori, Osamu Watanabe, Yanlong Che, Hisashi Fujimura, Naomichi Okamoto

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

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

2 Citations (Scopus)

Abstract

We report two-way holographic image storage in azo polymers. Urethane-urea copolymers involve two photochemical reactions, photoanisotropic modification and surface modification. We can realize the recording of two holograms(polarization volume hologram due to the anisotropy of azo side chain and surface relief hologram) that have different types of information. This is possible because the polarization volume hologram is rewritable while the surface relief hologram is thermally stable. Using the fact that the polarization volume hologram acts like a half wave plate, we can separately readout the different types of information.

Original language	English
Pages (from-to)	1619-1623
Number of pages	5
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	40
Issue number	3 B
Publication status	Published - 2001 Dec 1

Keywords

Cis-trans photoisomerization
Holographic image storage
Optical memory
Surface relief hologram
Urethane-urea copolymer

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

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Two-way holographic image storage in photosensitive polymers. / Aoshima, Yasuo; Egami, Chikara; Kawata, Yoshimasa; Sugihara, Okihiro; Tsuchimori, Masaaki; Watanabe, Osamu; Che, Yanlong; Fujimura, Hisashi; Okamoto, Naomichi.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 40, No. 3 B, 01.12.2001, p. 1619-1623.

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

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AU - Aoshima, Yasuo

AU - Egami, Chikara

AU - Kawata, Yoshimasa

AU - Sugihara, Okihiro

AU - Tsuchimori, Masaaki

AU - Watanabe, Osamu

AU - Che, Yanlong

AU - Fujimura, Hisashi

AU - Okamoto, Naomichi

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N2 - We report two-way holographic image storage in azo polymers. Urethane-urea copolymers involve two photochemical reactions, photoanisotropic modification and surface modification. We can realize the recording of two holograms(polarization volume hologram due to the anisotropy of azo side chain and surface relief hologram) that have different types of information. This is possible because the polarization volume hologram is rewritable while the surface relief hologram is thermally stable. Using the fact that the polarization volume hologram acts like a half wave plate, we can separately readout the different types of information.

AB - We report two-way holographic image storage in azo polymers. Urethane-urea copolymers involve two photochemical reactions, photoanisotropic modification and surface modification. We can realize the recording of two holograms(polarization volume hologram due to the anisotropy of azo side chain and surface relief hologram) that have different types of information. This is possible because the polarization volume hologram is rewritable while the surface relief hologram is thermally stable. Using the fact that the polarization volume hologram acts like a half wave plate, we can separately readout the different types of information.

KW - Cis-trans photoisomerization

KW - Holographic image storage

KW - Optical memory

KW - Surface relief hologram

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Two-way holographic image storage in photosensitive polymers

Abstract

Keywords

ASJC Scopus subject areas

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