Wave mixing in nominally undoped Sn2P2S6 at high light intensities

Autor(en): Shumelyuk, A.
Wesner, M.
Imlau, M. 
Odoulov, S.
Stichwörter: CRYSTALS; Optics; Physics; Physics, Applied
Erscheinungsdatum: 2009
Herausgeber: SPRINGER
Journal: APPLIED PHYSICS B-LASERS AND OPTICS
Volumen: 95
Ausgabe: 3
Startseite: 497
Seitenende: 503
Zusammenfassung: 
The intensity dependence of the photorefractive response of Sn2P2S6 is studied for the Kr+-laser wavelength of 647 nm and pump-beam intensities of up to 10 W/cm(2). A considerable enhancement of the two-beam coupling gain factor with increasing intensity at a grating spacing of a parts per thousand integral 1 mu m is attributed to a light-induced increase of the effective trap density. The large gain reached at high intensities is applied for the build up of a double phase conjugate mirror with a sub-millisecond switch-on time.
ISSN: 09462171
DOI: 10.1007/s00340-009-3405-3

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