by Shumelyuk, A., Ruediger, A., Schirmer, O.F., Hilling, B., Dieckmann, V., Brüning, H., Schemme, T., Imlau, M. and Odoulov, S.
Abstract:
The photorefractive response in Sn2P2S6 (SPS) is studied as a function of temperature with two-beam coupling experiments. The temperature dependences of the diffusion field and the electrooptic coefficient are the main reasons for the considerable decrease of the gain factor when cooling the sample from ambient temperature down to 150 K. At temperatures below 150 K, light-induced absorption gratings appear that are responsible for beam coupling, and the sign of the gain factor is dependent on the wavelength of the recording light.
Reference:
Temperature Dependence of Photorefractive Response of Sn$_2$P$_2$S$_6$ (Shumelyuk, A., Ruediger, A., Schirmer, O.F., Hilling, B., Dieckmann, V., Brüning, H., Schemme, T., Imlau, M. and Odoulov, S.), In J. Holography Speckle, volume 5, 2009.
Bibtex Entry:
@Article{Shumelyuk2009,
author = {Shumelyuk, A. and Ruediger, A. and Schirmer, O.F. and Hilling, B. and Dieckmann, V. and Br"uning, H. and Schemme, T. and Imlau, M. and Odoulov, S.},
title = {{Temperature Dependence of Photorefractive Response of Sn$_2$P$_2$S$_6$}},
journal = {J. Holography Speckle},
year = {2009},
volume = {5},
pages = {290--293},
abstract = {The photorefractive response in Sn2P2S6 (SPS) is studied as a function of temperature with two-beam coupling experiments. The temperature dependences of the diffusion field and the electrooptic coefficient are the main reasons for the considerable decrease of the gain factor when cooling the sample from ambient temperature down to 150 K. At temperatures below 150 K, light-induced absorption gratings appear that are responsible for beam coupling, and the sign of the gain factor is dependent on the wavelength of the recording light.},
doi = {10.1166/jhs.2009.1031},
url = {http://www.ingentaconnect.com/content/asp/jhs/2009/00000005/00000003/art00015},
}