8 December 2003 Photopolymerizable hybrid sol-gel material for holographic recording
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Abstract
A holographic hybrid sol-gel material with excellent values of diffraction efficiency, index modulation and high photosensitivity (up to 93%, 10-3, and 5 x 10-3 cm2/mJ, respectively) is reported. Moroever, a high angular selectivity has been achieved $9 = 0.0967°) through the selection of the adequate nanoporous silica supporting matrix. Such a value has allowed to first demonstrate the capability of angular multiplexing in a holographic sol-gel media (up to five volume holograms with a resultant M/# of 0.83 in a preliminary approach). Shrinkage during UV curing processes has also been determined in order to evaluate how accurate can be the retrieval of the recorded data.
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Gonzalo Ramos, Gonzalo Ramos, Alberto Alvarez-Herrero, Alberto Alvarez-Herrero, Tomas Belenguer, Tomas Belenguer, David Levy, David Levy, Francisco del Monte, Francisco del Monte, } "Photopolymerizable hybrid sol-gel material for holographic recording", Proc. SPIE 5216, Organic Holographic Materials and Applications, (8 December 2003); doi: 10.1117/12.504990; https://doi.org/10.1117/12.504990
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