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Proceedings Paper

Dye sensitization in a highly sensitive photopolymerizable system for real-time holography
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Paper Abstract

The spectral sensitivity and the enhancement of the energetic sensitivity are important points to the optimization of photopolymerizable materials. We have studied a polymeric system based on polyvinylalcohol as binder, monomers as acrylamide and dihydroxyethylenbisacrylamide and a photoinitiator system composed by triethanolamine and methylene blue. This system was irradiated with an Ar+ laser tuned at 514 nm, where this material do not absorb. Obtaining diffraction efficiencies of 55% with an energetic expositions of 500 mJcm-2. A possible mechanism of initiation of the photopolymerization process has been proposed by the presence of semireduced methylene blue that has an absorption band at 520 nm.

Paper Details

Date Published: 23 March 1999
PDF: 6 pages
Proc. SPIE 3638, Holographic Materials V, (23 March 1999); doi: 10.1117/12.342813
Show Author Affiliations
Salvador Blaya-Escarre, Univ. Miguel Hernandez (Spain)
Luis Carretero-Lopez, Dept. Interuniv. de Optica/Univ. de Alicante (Spain)
Roque F. Madrigal, Univ. Miguel Hernandez (Spain)
Ricardo Marin Mallavia, Univ. Miguel Hernandez (Spain)
Antonio Fimia, Univ. Miguel Hernandez (Spain)

Published in SPIE Proceedings Vol. 3638:
Holographic Materials V
T. John Trout, Editor(s)

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