Real time hologram reinforcement demonstrated by thionine/PVA photoreducible thin layers.
Thionine dye dissolved in polyvinylalcohol matrix is a well-known photoreducible system that shows photochromism. Experiments on a real time hologram recording process performed by this system are presented here. During the reading process, a grating reinforcement was observed, and this phenomenon is qualitatively discussed.
Caron
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Couture
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Lessard
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