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9 June 2006 Enhanced near-infrared photorefractive properties of Te-doped Sn2P2S6
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Proceedings Volume 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information; 625208 (2006) https://doi.org/10.1117/12.676508
Event: Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 2005, Varna, Bulgaria
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.
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T. Bach, M. Jazbinsek, Germano Montemezzani, Peter Günter, A. A. Grabar, I. M. Stoika, and Yu. M. Vysochanskii "Enhanced near-infrared photorefractive properties of Te-doped Sn2P2S6", Proc. SPIE 6252, Holography 2005: International Conference on Holography, Optical Recording, and Processing of Information, 625208 (9 June 2006); https://doi.org/10.1117/12.676508
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