PARAMETRIC GENERATION OF A SPATIAL SUBHARMONIC GRATING IN PHOTOREFRACTIVE CRYSTALS - THEORY

Authors
NESTIORKIN OP SHERSHAKOV YP
Citation
Op. Nestiorkin et Yp. Shershakov, PARAMETRIC GENERATION OF A SPATIAL SUBHARMONIC GRATING IN PHOTOREFRACTIVE CRYSTALS - THEORY, Journal of the Optical Society of America. B, Optical physics, 10(10), 1993, pp. 1907-1918
Citations number
35
Categorie Soggetti
Optics
Journal title
Journal of the Optical Society of America. B, Optical physics → ACNP
ISSN journal
07403224
Volume
10
Issue
10
Year of publication
1993
Pages
1907 - 1918
Database
ISI
SICI code
0740-3224(1993)10:10<1907:PGOASS>2.0.ZU;2-5
Abstract
The instability of a spatial subharmonic grating during photorefractiv e hologram recording is investigated theoretically. It is shown that s uch instability arises in crystals if the electron drift length in the external field exceeds the fundamental grating period. Cases with dc and ac external fields are considered. The influence of diffusion and trap charge saturation is examined.