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Proceedings Paper

New photorefractive ferroelectric for red and near infrared: tin hypothiodiphosphate
Author(s): S. Odoulov
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Paper Abstract

At room temperature Tin hypothiodiphosphate (Sn2P2S6) belongs to spatial group Pc. The angle between its two optical axes is above 100°. The material is transparent from 0.53 to 8 μm with the bandgap close to 2.3 eV; it exhibits a pronounced photoconductivity. The crystallographic axis OX is nearly parallel to the axis of spontaneous polarization and the OY axis is normal to the mirror plane. Photorefractive recording inSn2P2S6 has been first accomplished in [1,2] with HeNe laser light. We report in this study on sensitizing of Sn2P2S6 crystals to cw-radiation of Nd3+:YAG laser (λ, = 1.06 μm) by pre-exposure to incoherent white light.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778A5 (1 September 1996); doi: 10.1117/12.2316054
Show Author Affiliations
S. Odoulov, Institute of Physics (Ukraine)


Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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