Non-volatile holographic data storage media based on dye-doped thermoplastic

Christoph Erben; Xiaolei Shi; Eugene Boden; Kathryn L. Longley; Brian Lawrence; Pingfan Wu

doi:10.1117/12.685240

22 June 2006 Non-volatile holographic data storage media based on dye-doped thermoplastic

Christoph Erben, Xiaolei Shi, Eugene Boden, Kathryn L. Longley, Brian Lawrence, Pingfan Wu

Author Affiliations +

Proceedings Volume 6282, Optical Data Storage 2006; 62821A (2006) https://doi.org/10.1117/12.685240
Event: Optical Data Storage 2006, 2006, Montréal, Canada

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.

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Christoph Erben, Xiaolei Shi, Eugene Boden, Kathryn L. Longley, Brian Lawrence, and Pingfan Wu "Non-volatile holographic data storage media based on dye-doped thermoplastic", Proc. SPIE 6282, Optical Data Storage 2006, 62821A (22 June 2006); https://doi.org/10.1117/12.685240

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