Temperature dependence of photorefractive response of Sn2P 2S6
| Autor(en): | Shumelyuk, A. Ruediger, A. Schirmer, O.F. Hilling, B. Dieckmann, V. Brüning, H. Schemme, T. Imlau, M. Odoulov, S. |
Stichwörter: | Ambient temperatures; Beam coupling; Diffusion fields; Dynamic holography; Electro optic coefficient; Gain factors; Holography; Light-induced absorption; Low temperature; Low temperatures; Photorefractive gratings; Photorefractive materials; Photorefractive response; Temperature dependence; Temperature distribution; Tin, Photoreactivity; Two-beam coupling, Electrooptical devices | Erscheinungsdatum: | 2009 | Journal: | Journal of Holography and Speckle | Volumen: | 5 | Ausgabe: | 3 | Startseite: | 290 | Seitenende: | 293 | Zusammenfassung: | 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. Copyright © 2009 American Scientific Publishers All rights reserved. |
ISSN: | 1546900X | DOI: | 10.1166/jhs.2009.1031 | Externe URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951726520&doi=10.1166%2fjhs.2009.1031&partnerID=40&md5=c48587b869525c1ef9f9a37827f2e56f |
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