Abstract

The photorefractive effect is theoretically studied at the interface between a thin photoconducting layer and an oxidic electro-optic crystal. A grating charge distribution in the photoconducting layer creates an electric field that penetrates the electro-optic crystal, giving a refractive-index modulation near the interface. The photorefractive gratings of different crystal geometries are discussed.

© 1998 Optical Society of America

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