Hologram recording method for 1 Tbit/in^2

Shohei Ozawa; Kaito Okubo; Hiroyuki Kurata; Takefumi Yamada; Shuhei Yoshida; Manabu Yamamoto

doi:10.1117/12.2002267

1 March 2013 Hologram recording method for 1 Tbit/in²

Shohei Ozawa, Kaito Okubo, Hiroyuki Kurata, Takefumi Yamada, Shuhei Yoshida, Manabu Yamamoto

Proceedings Volume 8644, Practical Holography XXVII: Materials and Applications; 86440Y (2013) https://doi.org/10.1117/12.2002267
Event: SPIE OPTO, 2013, San Francisco, California, United States

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.

Citation Download Citation

Shohei Ozawa, Kaito Okubo, Hiroyuki Kurata, Takefumi Yamada, Shuhei Yoshida, and Manabu Yamamoto "Hologram recording method for 1 Tbit/in²", Proc. SPIE 8644, Practical Holography XXVII: Materials and Applications, 86440Y (1 March 2013); https://doi.org/10.1117/12.2002267

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