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Proceedings Article

Epoxy-photopolymer composites: thick recording media for holographic data storage

[+] Author Affiliations
Timothy J. Trentler, Joel E. Boyd, Vicki L. Colvin

Rice Univ. (USA)

Proc. SPIE 4296, Practical Holography XV and Holographic Materials VII, 259 (June 4, 2001); doi:10.1117/12.429467
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From Conference Volume 4296

  • Practical Holography XV and Holographic Materials VII
  • Stephen A. Benton; Sylvia H. Stevenson; T. John Trout
  • San Jose, CA | January 20, 2001

abstract

Archival data-storage based on holographic methods requires high performance recording materials. Here, we describe an epoxy-photopolymer composite material which is sensitive to visible light and can be fabricated as thick films. These materials are prepared by combining photopolymerizable vinyl monomers with a liquid epoxy resin and an amine hardener. As the epoxy cures at room temperature, a solid matrix is formed which surrounds the unreacted photopolymer. These vinyl monomers are subsequently photopolymerized during hologram recording. Typically the material consists of a low index matrix, composed of diethylenetriamine and 1,4- butanediol diglycidyl ether, and a high index photopolymer mixture of N-vinylcarbazole and N-vinyl-2-pyrrolidinone. Because the polymers can be prepared in thick formats, narrow angular bandwidth holograms with high diffraction efficiency can be recorded. A dynamic range up to 13 has been measured in these materials.

© (2001) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Timothy J. Trentler ; Joel E. Boyd and Vicki L. Colvin
"Epoxy-photopolymer composites: thick recording media for holographic data storage", Proc. SPIE 4296, Practical Holography XV and Holographic Materials VII, 259 (June 4, 2001); doi:10.1117/12.429467; http://dx.doi.org/10.1117/12.429467


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