Study of the photorefractive effect in crystals Pb5Ge3O11:Cu and Pb5Ge3O11

L. D. Pryadko; O. Gnatovsky; T. I. Semenets; V. G. Linnik

doi:10.1117/12.239207

29 April 1996 Study of the photorefractive effect in crystals Pb₅Ge₃O₁₁:Cu and Pb₅Ge₃O11

L. D. Pryadko, O. Gnatovsky, T. I. Semenets, V. G. Linnik

Proceedings Volume 2795, Nonlinear Optics of Liquid and Photorefractive Crystals; (1996) https://doi.org/10.1117/12.239207
Event: Nonlinear Optics of Liquid and Photorefractive Crystals, 1995, Ai-Danil, Crimea, Ukraine

Abstract

The investigation of the photorefractive effect in crystals Pb₅Ge₃O₁₁:Cu and Pb₅Ge₃O₁₁ that we started earlier is continued. The lead germanate crystal doped by copper demonstrated the photorefractive properties at the wavelength of 496.5 nm with diffraction efficiency of the recorded hologram of 0.4%. The crystal Pb₅Ge₃O₁₁ exhibited the photorefractive effect at the wavelength 496.5 nm and 514.5 nm. In this case the grating diffraction efficiency was 5.3%. As for two investigated crystals the total intensity of writhing beams kept at the level of 100 mW/cm². There was no external electric field applied to crystals. We studied the temporal characteristics of recording and of erasure of holographic gratings and the crystal response time as a function of the total light intensity.

Citation Download Citation

L. D. Pryadko, O. Gnatovsky, T. I. Semenets, and V. G. Linnik "Study of the photorefractive effect in crystals Pb₅Ge₃O₁₁:Cu and Pb₅Ge₃O11", Proc. SPIE 2795, Nonlinear Optics of Liquid and Photorefractive Crystals, (29 April 1996); https://doi.org/10.1117/12.239207

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