Photorefraction in tin hypothiodiphosphate in the near infrared
- 1 October 1996
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 13 (10) , 2352-2360
- https://doi.org/10.1364/josab.13.002352
Abstract
Ferroelectric photorefractive Sn2P2S6 crystals become more sensitive to cw radiation of a Nd3+: YAG laser (λ = 1.06 µm) by preexposure with incoherent white light. Space-charge formation and hologram recording are dominated by a diffusionlike charge transport, leading to an ultimate gain factor for transmission gratings that exceeds 6 cm-1 at a laser intensity of approximately 50 W/cm2.Keywords
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