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Optical Engineering

Three-dimensional optical data storage using three-dimensional optics
Author(s): Yoshimasa Kawata; Masaharu Nakano; Suk-Chun Lee
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Paper Abstract

Three-dimensional optical memory with photorefractive materials is discussed for ultra-high density/capacity memory exceeding the classical limit of a conventional optical recording system. Bit data are recorded as highly localized refractive index variations in threedimensional volume using a focused laser beam. We show recording and reading results using a multilayered recording medium with a photoisomerization polymer and transparent films. Two-photon recording is also demonstrated. We also discuss the spherical aberration corrections using a volume holographic device, and compact confocal configuration using a semiconductor laser.

Paper Details

Date Published: 1 October 2001
PDF: 8 pages
Opt. Eng. 40(10) doi: 10.1117/1.1402123
Published in: Optical Engineering Volume 40, Issue 10
Show Author Affiliations
Yoshimasa Kawata, Shizuoka Univ. (Japan)
Masaharu Nakano, Shizuoka Univ. (Japan)
Suk-Chun Lee, Shizuoka Univ. (Japan)

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