2-WAVE MIXING AND FANNING EFFECT IN BI12TIO20 UNDER AN ALTERNATING ELECTRIC-FIELD

Citation
H. Tuovinen et al., 2-WAVE MIXING AND FANNING EFFECT IN BI12TIO20 UNDER AN ALTERNATING ELECTRIC-FIELD, Optical engineering, 34(9), 1995, pp. 2641-2647
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Optics
Journal title
ISSN journal
0091-3286
Volume
34
Issue
9
Year of publication
1995
Pages
2641 - 2647
Database
ISI
SICI code
0091-3286(1995)34:9<2641:2MAFEI>2.0.ZU;2-V
Abstract
Numerical calculation of the two-wave mixing gain factor for arbitrary orientation of the holographic grating vector using the coupled wave theory developed for optically active electro-optic crystal enabling p ump-beam depletion is presented. Two-dimensional angular dependencies of the gain factor are measured in Bi12TiO20 photorefractive crystal u nder an alternating external electric field using the fanning effect. It is found experimentally that the angular distribution of fanning li ght is independent of the polarization state of the pump beam. This fa ct could not be explained by the existing theory.