Electric-field enhancement of beam coupling in Sn2P2S6

Authors
Shumelyuk, A Odoulov, S Kip, D Kratzig, E
Citation
A. Shumelyuk et al., Electric-field enhancement of beam coupling in Sn2P2S6, APP PHYS B, 72(6), 2001, pp. 707-710
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS B-LASERS AND OPTICS
ISSN journal
09462171 → ACNP
Volume
72
Issue
6
Year of publication
2001
Pages
707 - 710
Database
ISI
SICI code
0946-2171(200105)72:6<707:EEOBCI>2.0.ZU;2-4
Abstract
The influence of an external field on photorefractive recording in Sn2P2S6 (SPS) crystals is studied. A large gain factor of more then 15 cm(-1) is ac hieved for a grating spacing of 12 mum at lambda = 0.9 mum. For an applied field exceeding +/-200 V/cm a switching of the beam coupling direction is d etected, exhibiting a pronounced hysteresis.