1995•Conference on Lasers and Electro-OpticsRequires access

Surface-strain effects on photorefractive gratings

G. Fogarty, Mark Cronin‐Golomb

Abstract

Taking the crystal surface to be traction free, we calculate the lattice distortions and associated elasto-optic refractive-index changes induced by a photorefractive grating. The surface effects are significant and result in refractive-index changes near the surface that differ considerably from bulk values. Such surface effects should be of importance in thin-film photorefractive devices, in thin samples, and in certain situations in bulk crystals.

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Available abstract

Key concepts: Photorefractive effect, Organic photorefractive materials, Materials science, Refractive index, Grating, Optics, Thin film, Surface (topology)