SPECTRAL DEPENDENCE OF CROSS-TALK BETWEEN PHOTOREFRACTIVE GRATINGS INBI12SIO20 IN-DIFFUSION REGIME

Authors
VASNETSOV M LYUKSYUTOV S BUCHHAVE P ANDERSEN PE PETERSEN PM
Citation
M. Vasnetsov et al., SPECTRAL DEPENDENCE OF CROSS-TALK BETWEEN PHOTOREFRACTIVE GRATINGS INBI12SIO20 IN-DIFFUSION REGIME, Applied physics. B, Lasers and optics, 65(4-5), 1997, pp. 523-526
Citations number
15
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
65
Issue
4-5
Year of publication
1997
Pages
523 - 526
Database
ISI
SICI code
0946-2171(1997)65:4-5<523:SDOCBP>2.0.ZU;2-6
Abstract
We report on experimental results showing a strong wavelength-dependen ce of cross-talk between photorefractive gratings simultaneously recor ded in Bi12SiO20 crystals in the diffusion regime. We find unusually h igh cross-talk for two gratings with close spatial frequencies at wave lengths 488 and 476 nm. The results indicate that the density of free charge carriers does not directly follow light modulation at low spati al frequencies.