New photorefractive ferroelectric for red and near infrared: tin hypothiodiphosphate

S. Odoulov

doi:10.1117/12.2316054

1 September 1996 New photorefractive ferroelectric for red and near infrared: tin hypothiodiphosphate

S. Odoulov

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778A5 (1996) https://doi.org/10.1117/12.2316054
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

At room temperature Tin hypothiodiphosphate (Sn₂P₂S₆) belongs to spatial group P_c. 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.

Citation Download Citation

S. Odoulov "New photorefractive ferroelectric for red and near infrared: tin hypothiodiphosphate", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778A5 (1 September 1996); https://doi.org/10.1117/12.2316054

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