Method Combining Focus-Shift and Angle Multiplexing Method for Holographic Data Storage

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概要

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• Holographic data storage capacity is proportional to the thickness of a photopolymer recording medium. To maximize the performance of a photopolymer recording medium, it is necessary to develop a multiplexing technique that has sensitivity in the vertical direction of the medium. As a method to achieve this, we suggest the focus-shift multiplexing method by which holograms are recorded in the vertical direction of the medium. By combining angle multiplexing and this focus-shift multiplexing, we confirm that the multiplexed holograms that are recorded by angle multiplexing are well spatially separated in the vertical direction of the medium, and these holograms can be reconstructed without crosstalk noise.

• 2008-07-25

著者

• 吉田 慎也

  シャープ株式会社

• Kurata Yukio

  Precision Technology Development Center Sharp Corporation

• Ueyama Tetsuo

  Precision Technology Development Center Sharp Corporation

• Okada Kuniaki

  Precision Technology Development Center Sharp Corporation

• Yoshida Shinya

  Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

• Yoshida Shinya

  Optical Module Technology Research Laboratories, Production Technology Development Group, Sharp Corporation, 2613-1 Ichinomoto, Tenri, Nara 632-8567, Japan

• Nagasaka Yukiko

  Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

• Nakamura Atsushi

  Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

• Tanaka Masaki

  Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

• Kobayashi Akiko

  Precision Technology Development Center, Production Technology Development Group, Sharp Corporation, Tenri, Nara 632-8567, Japan

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