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Proceedings Paper

Three-dimensional multiplexing method with spherical reference beam
Author(s): Hiroyuki Kurata; Shohei Ozawa; Kaito Okubo; Takaaki Matsubara; Shuhei Yoshida; Manabu Yamamoto
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Paper Abstract

Today, along with the wider use of high-speed information networks and multimedia, it is increasingly necessary to have higher-density and higher-transfer-rate storage devices. Therefore, research and development into holographic memories with three-dimensional storage areas is being carried out to realize next-generation large-capacity memories. The mainstream in the world is the angle multiplexing method, however, it costs too much and its control is quite severe. In such situation, we study about shift multiplexing method because it costs not much and its control is easier than the angle multiplexing. In this experiment, we examined shift selectivity of track direction, radial direction and vertical direction of the medium. As a result, combining these different kinds of selectivity, we found a possible multiplexing way to achieve several tera bits per inch square density recording.

Paper Details

Date Published: 3 May 2013
PDF: 6 pages
Proc. SPIE 8776, Holography: Advances and Modern Trends III, 87760H (3 May 2013); doi: 10.1117/12.2016993
Show Author Affiliations
Hiroyuki Kurata, Tokyo Univ. of Science (Japan)
Shohei Ozawa, Tokyo Univ. of Science (Japan)
Kaito Okubo, Tokyo Univ. of Science (Japan)
Takaaki Matsubara, Tokyo Univ. of Science (Japan)
Shuhei Yoshida, Tokyo Univ. of Science (Japan)
Manabu Yamamoto, Tokyo Univ. of Science (Japan)

Published in SPIE Proceedings Vol. 8776:
Holography: Advances and Modern Trends III
Miroslav Hrabovský; John T. Sheridan; Antonio Fimia-Gil, Editor(s)

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