Piezooptic Coefficients and Acoustic Wave Velocities in Sn2P2S6 Crystals
arXiv:0706.4228 · doi:10.3116/16091833/7/3/124/2006
Abstract
Piezooptic coefficients of Sn2P2S6 crystals are experimentally determined for l=623.8 nm and T=293 K with the aid of interferometric technique. The components of the elastic stiffness tensor for these crystals are calculated on the basis of studies for the acoustic wave velocities. It is shown that acoustooptic figure of merit can achieve extremely high values for Sn2P2S6 crystals (M2 - 2x10-12s3/kg2).
8 pages, 2 tables, 1 figure