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

Salvador Blaya-Escarre; Luis Carretero-Lopez; Roque F. Madrigal; Ricardo Marin Mallavia; Antonio Fimia

doi:10.1117/12.342813

23 March 1999 Dye sensitization in a highly sensitive photopolymerizable system for real-time holography

Salvador Blaya-Escarre, Luis Carretero-Lopez, Roque F. Madrigal, Ricardo Marin Mallavia, Antonio Fimia

Proceedings Volume 3638, Holographic Materials V; (1999) https://doi.org/10.1117/12.342813
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

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.

Citation Download Citation

Salvador Blaya-Escarre, Luis Carretero-Lopez, Roque F. Madrigal, Ricardo Marin Mallavia, and Antonio Fimia "Dye sensitization in a highly sensitive photopolymerizable system for real-time holography", Proc. SPIE 3638, Holographic Materials V, (23 March 1999); https://doi.org/10.1117/12.342813

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