HEXAGON FORMATION IN PHOTOREFRACTIVE CRYSTALS AS MIRRORLESS COHERENT OSCILLATION

Authors
UESU Y UENO A KOBAYASHI M ODOULOV S
Citation
Y. Uesu et al., HEXAGON FORMATION IN PHOTOREFRACTIVE CRYSTALS AS MIRRORLESS COHERENT OSCILLATION, Journal of the Optical Society of America. B, Optical physics, 15(7), 1998, pp. 2065-2069
Citations number
25
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. B, Optical physics → ACNP
ISSN journal
07403224
Volume
15
Issue
7
Year of publication
1998
Pages
2065 - 2069
Database
ISI
SICI code
0740-3224(1998)15:7<2065:HFIPCA>2.0.ZU;2-7
Abstract
The spontaneous appearance of hexagon patterns in photorefractive crys tals is treated as mirrorless coherent four-wave mixing oscillation. I t is shown experimentally that the system has a well-defined coupling- strength threshold and behaves as other coherent optical oscillators n ear the threshold. A simple relation for the angle of the hexagon side band as a function of the distance between the end mirror and the samp le is derived and verified experimentally. (C) 1998 Optical Society of America.