Anisotropy of acoustic and acousto-optic properties in lithium niobate crystals

The anisotropy of the velocity and attenuation of acoustic waves as well as the acousto-optic quality factor in lithium niobate crystals has been studied at the propagation of light and acoustic waves in the (100) symmetry plane. Investigations carried out by the Bragg light diffraction method. The effective photoelastic constants and the acousto-optic quality factors were determined for several light diffraction geometries. It is shown the possibility of controlling the diffracted light intensity by changing the relative orientation of the light and sound wave vectors.

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