Holographic Read-Only-Memory System for High-Speed Replication
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概要
- 論文の詳細を見る
A novel high-capacity holographic read-only-memory (ROM) disc system is proposed that stores multiple disc-sized data patterns as multiplexed holograms within a single holographic disc using a conical reference beam for rotational symmetry during recording, with continuous serial readout during playback. Estimates predict user-data capacities of 100 GB or more in a 12 cm disc, with replication speeds of a minute or less, using current holographic media parameters and high-power lasers. A method for fabricating transmissive metallic disc-sized data masks is developed and confirmed experimentally for features down to 0.4 μm, through a variation of the optical disc mastering process. The retrieval of raw holographic eye-patterns at a rotation speed of 1000 rpm without the use of servos is demonstrated for linear densities of 0.67 μm per channel bit with EFMPlus channel coding.
- 2003-02-15
著者
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Kobayashi Seiji
Department Of Anatomy Kurume University School Of Medicine
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Chuang Ernest
Department 2, Optical Disc Development Division, AV/IT Development Group, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Yamatsu Hisayuki
Department 2, Optical Disc Development Division, AV/IT Development Group, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Yamatsu Hisayuki
Department 1, Optical Disc Development Division, Optical System Development Group, Broadband Network Company, SONY Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Saito Kimihiro
Department 2, Optical Disc Development Division, AV/IT Development Group, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Saito Kimihiro
Department 1, Optical Disc Development Division, AV/IT Development Group, SONY Corporation, 6-7-35, Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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Kobayashi Seiji
Department 2, Optical Disc Development Division, AV/IT Development Group, Sony Corporation, 6-7-35 Kitashinagawa, Shinagawa-ku, Tokyo 141-0001, Japan
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