Study of holographic storage characteristics of nanoparticle-doped photopolymers

Mingju Huang; Ruoping Li

doi:10.1117/12.2018735

24 January 2013 Study of holographic storage characteristics of nanoparticle-doped photopolymers

Mingju Huang, Ruoping Li

Proceedings Volume 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage; 878204 (2013) https://doi.org/10.1117/12.2018735
Event: 2012 International Workshop on Information Data Storage and Ninth International Symposium on Optical Storage, 2012, Shanghai, China

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.

Citation Download Citation

Mingju Huang and Ruoping Li "Study of holographic storage characteristics of nanoparticle-doped photopolymers", Proc. SPIE 8782, 2012 International Workshop on Information Storage and Ninth International Symposium on Optical Storage, 878204 (24 January 2013); https://doi.org/10.1117/12.2018735

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