Polarization dependence of two-beam-coupling gain in bismuth titanate photorefractive crystals

Authors
Kobozev, OV Shandarov, SM Litvinov, RV Maksimov, AA Kargin, YF Volkov, VV
Citation
Ov. Kobozev et al., Polarization dependence of two-beam-coupling gain in bismuth titanate photorefractive crystals, INORG MATER, 34(12), 1998, pp. 1255-1259
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
34
Issue
12
Year of publication
1998
Pages
1255 - 1259
Database
ISI
SICI code
0020-1685(199812)34:12<1255:PDOTGI>2.0.ZU;2-Z
Abstract
The polarization dependences of the two-beam-coupling gain coefficient were measured at various orientations of the index-grating wave vector in a cub ic Bi12TiO20 crystal. The dependences calculated with consideration for the contribution of photoelastic effect to the effective electrooptic constant were found to agree well with experiment. By fitting experimental data to the expressions obtained, the electrooptic constant of a strain-free crysta l and photoelastic constants were determined.