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Proceedings Paper

Study of holographic storage characteristics of nanoparticle-doped photopolymers
Author(s): Mingju Huang; Ruoping Li
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Paper Abstract

Photopolymer composite materials doped with different kinds of nanoparticles (such as SiO2 TiO2, Mg(OH)2, etc.) were fabricated. Photopolymerization processes in the materials and some holographic performance parameters were measured and analyzed. The experimental results show that the maximum diffraction efficiency, maximum refractive index modulation and some other holographic performance parameters increase with the increase in the nanoparticles concentration until it arrives the optimum concentration. Especially, the Bragg-mismatch angle of the material films decreases obviously and the dimensional stability is more remarkably improved, too. For example, the shrinkage rate of the sample films undoped and or doped with TiO2 nanoparticles, decreases from 1.12% to 0.28%. The surface structure of the two dimensional holographic gratings was investigated by Scanning Electron Microscopy. Two dimensional digital images generated by Spatial Light Modulator were stored in the thick films (about 200μm), and the reconstructed data pages have good fidelity. The results show that the nanoparticle-doped photopolymer materials have a better potential in holographic storage.

Paper Details

Date Published: 24 January 2013
PDF: 7 pages
Proc. SPIE 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage, 878204 (24 January 2013); doi: 10.1117/12.2018735
Show Author Affiliations
Mingju Huang, Henan Univ. (China)
Ruoping Li, Henan Univ. (China)

Published in SPIE Proceedings Vol. 8782:
2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage
Fuxi Gan; Zhitang Song, Editor(s)

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