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Proceedings Paper

Novel photopolymer material for holographic data storage
Author(s): Guodong Liu; Qingsheng He; Hongzhen Jin; Minxian Wu; Guofan Jin; Mengquan Shi; Feipeng Wu; Miaozhen Li; Erjian Wang
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Paper Abstract

Most photopolymer materials consist of a photopolymerizable monomer, a photoinitiator and a sensitizer in a polymer binder. During optical exposure, a few photons can initiate a chain reaction of photopolymerizable monomer molecules, which cause a change of the refractive index, forming hologram. In tradition, the refractive index of the monomer is higher than that of the binder, and the magitude of the refractive index modualtion is dependent on the differnce in refractive indices between the binder and the monomer. A novel photopolymer material different from the tradition is presented in this paper, in which the monomer is MMA with the refractive index much lower than that of the binder synthesized from epoxy resin monomer and XDA, so that the material can be conveniently developed into samples with dimension stability and high optical quality and thickness of several millimeters or more. A holographic recoridng medium of 0.8 mm thickness has been fabricated, and the storage characterizations as well as its relative theoretical analysis of its are presented.

Paper Details

Date Published: 17 September 2002
PDF: 5 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483316
Show Author Affiliations
Guodong Liu, Tsinghua Univ. (China)
Qingsheng He, Tsinghua Univ. (China)
Hongzhen Jin, Tsinghua Univ. (China)
Minxian Wu, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)
Mengquan Shi, Technical Institute of Physics and Chemistry (China)
Feipeng Wu, Technical Institute of Physics and Chemistry (China)
Miaozhen Li, Technical Institute of Physics and Chemistry (China)
Erjian Wang, Technical Institute of Physics and Chemistry (China)

Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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