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Proceedings Paper

Enhanced near-infrared photorefractive properties of Te-doped Sn2P2S6
Author(s): T. Bach; M. Jazbinsek; Germano Montemezzani; Peter Günter; A. A. Grabar; I. M. Stoika; Yu. M. Vysochanskii
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Paper Abstract

We investigate different types of ferroelectric photorefractive Sn2P2S6 at different wavelengths in the red and infrared. We show that modifying the growth conditions and doping with Te can efficiently improve the photorefractive properties of Sn2P2S6. Photorefractive two-beam coupling gain increases for Te-doped Sn2P2S6, up to 17 cm-1 at a wavelength of 633 nm and up to 7 cm-1 at 860 nm, compared to conventional "yellow" Sn2P2S6 which has a gain of 4-7 cm-1 at 633 nm and 2 cm-1 at 860 nm. We demonstrate self-pumped phase conjugation in ring cavity scheme at 780 nm for Te-doped Sn2P2S6 with a reflectivity of up to 30% in a relatively short rise time of less than 50 ms for 2 W/cm2 pump intensity.

Paper Details

Date Published: 9 June 2006
PDF: 5 pages
Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 625208 (9 June 2006); doi: 10.1117/12.676508
Show Author Affiliations
T. Bach, Swiss Federal Institute of Technology (Switzerland)
M. Jazbinsek, ETH Zürich (Switzerland)
Germano Montemezzani, Univ. de Metz (France)
Peter Günter, ETH Zürich (Switzerland)
A. A. Grabar, Uzhgorod National Univ. (Ukraine)
I. M. Stoika, Uzhgorod National Univ. (Ukraine)
Yu. M. Vysochanskii, Uzhgorod National Univ. (Ukraine)


Published in SPIE Proceedings Vol. 6252:
Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information
Yury Denisyuk; Ventseslav Sainov; Elena Stoykova, Editor(s)

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