2004 Volume 33 Issue 3 Pages 242-243
The photorefractive properties of mixtures of a ferroelectric liquid crystal and photoconductive polymers were investigated by two-beam coupling experiments. A photorefractive effect based on reorientation of spontaneous polarization was induced in these mixtures. Asymmetric energy exchange was observed in the Bragg diffraction condition and gain coefficients of 10–15 cm−1 were obtained. It was found that the internal electric field was efficiently formed in polymer/FLC mixtures.
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