Enhanced near-infrared photorefractive properties of Te-doped Sn2P2S6

T. Bach; M. Jazbinsek; Germano Montemezzani; Peter Günter; A. A. Grabar; I. M. Stoika; Yu. M. Vysochanskii

doi:10.1117/12.676508

9 June 2006 Enhanced near-infrared photorefractive properties of Te-doped Sn₂P₂S₆

T. Bach, M. Jazbinsek, Germano Montemezzani, Peter Günter, A. A. Grabar, I. M. Stoika, Yu. M. Vysochanskii

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.

Citation Download Citation

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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