Abstract

The influence of the glass-transition temperature T g and the electro-optical chromophore content on the grating buildup dynamics in photorefractive polymer composites is investigated. The response times were found to be strongly dependent on both parameters. In the low-T g regime, composites of different chromophore content respond similarly quickly (200–500 ms), whereas significant differences occur for T g above the measurement (room) temperature. The composites with the highest chromophore content give the best steady-state performance; however, their response is much slower than that for those containing less chromophore.

© 1998 Optical Society of America

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