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Proceedings Paper

Hologram recording method for 1 Tbit/in^2
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Paper Abstract

We examined the possibility of high-density recording using shift-multiplexed holographic memory with a spherical reference beam. The use of a spherical reference beam is considered to make it possible to realize a multi-dimensional multiplex system that uses the disk track direction (x-axis), radial direction (y-axis), and disk thickness direction (z-axis); this would clearly improve the recording density when compared with the conventional angle multiplex recording. The experimental results confirm the possibility of multiple recording by 3 dimensional medium shift. Furthermore, the results indicate that a large capacity memory system of over 1 Tb/in2 can be obtained if a thick medium (about 1.5 mm) is used.

Paper Details

Date Published: 1 March 2013
PDF: 7 pages
Proc. SPIE 8644, Practical Holography XXVII: Materials and Applications, 86440Y (1 March 2013); doi: 10.1117/12.2002267
Show Author Affiliations
Shohei Ozawa, Tokyo Univ. of Science (Japan)
Kaito Okubo, Tokyo Univ. of Science (Japan)
Hiroyuki Kurata, Tokyo Univ. of Science (Japan)
Takefumi Yamada, Tokyo Univ. of Science (Japan)
Shuhei Yoshida, Tokyo Univ. of Science (Japan)
Manabu Yamamoto, Tokyo Univ. of Science (Japan)

Published in SPIE Proceedings Vol. 8644:
Practical Holography XXVII: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove Jr., Editor(s)

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