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Appl Opt. 2004 Apr 1;43(10):2125-9.

Silica-nanoparticle-dispersed methacrylate photopolymers with net diffraction efficiency near 100%.

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1
Department of Electronics Engineering, University of Electro-Communications, 1-5-1 Chofu-gaoka, Chofu, Tokyo 182-8585, Japan.

Abstract

We demonstrate volume holographic recording in silica-nanoparticle-dispersed methacrylate photopolymers with reduced scattering loss as low as 2%. This is made possible by use of 13-nm silica nanoparticles. As a result a net diffraction efficiency near 100% is achieved for a transmission volume hologram of 45-microm thickness. Grating buildup dynamics are measured for various nanoparticle concentrations, and the effects of nanoparticle size on refractive-index modulation and polymerization shrinkage are also evaluated.

PMID:
15074422
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