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Proceedings Paper

Non-volatile holographic data storage media based on dye-doped thermoplastic
Author(s): Christoph Erben; Xiaolei Shi; Eugene Boden; Kathryn L. Longley; Brian Lawrence; Pingfan Wu
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Paper Abstract

Holographic data storage materials are currently being developed at General Electric. These materials are based on a thermoplastic host doped with narrow-band absorption dyes. The dyes are photosensitive and undergo non-reversible photochromic reactions upon exposure. Samples were produced using different dyes and various concentrations in a polycarbonate host with a focus on sensitivity and capacity of the media. A challenging obstacle for a successful photochromic system is the inherent remaining photosensitivity of the material after the writing process. This paper will introduce the concept of a highly sensitive yet non-volatile photochromic data storage system. The chromophore is subjected to a post-treatment step at a second wavelength which removes the photosensitivity. The stored data can therefore be secured against degradation during read-out at the writing wavelength.

Paper Details

Date Published: 22 June 2006
PDF: 9 pages
Proc. SPIE 6282, Optical Data Storage 2006, 62821A (22 June 2006); doi: 10.1117/12.685240
Show Author Affiliations
Christoph Erben, GE Global Research (United States)
Xiaolei Shi, GE Global Research (United States)
Eugene Boden, GE Global Research (United States)
Kathryn L. Longley, GE Global Research (United States)
Brian Lawrence, GE Global Research (United States)
Pingfan Wu, GE Global Research (United States)

Published in SPIE Proceedings Vol. 6282:
Optical Data Storage 2006
Ryuichi Katayama; Tuviah E. Schlesinger, Editor(s)

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