Photorefractive scattering of the radiation of the helium-neon laser in lithium niobate crystals

Сюй А.В., Строганов В.И., Лихтин В.В. Фоторефрактивное рассеяние излучений гелий-неонового лазера в кристаллах ниобата лития // Оптический журнал. 2007. Т. 74. № 5. С. 79–81.

Syui A.V., Stroganov V.I., Likhtin V.V. Photorefractive scattering of the radiation of the helium-neon laser in lithium niobate crystals [in Russian] // Opticheskii Zhurnal. 2007. V. 74. № 5. P. 79–81.

A. V. Syuĭ, V. I. Stroganov, and V. V. Likhtin, "Photorefractive scattering of the radiation of a helium-neon laser in lithium niobate crystals," Journal of Optical Technology. 74 (5), 365-367 (2007). https://doi.org/10.1364/JOT.74.000365

The characteristic time dependence of the angular width of the central spot of photorefractive scattering of the radiation of a low-power helium-neon laser is detected for a LiNbO₃:Fe (0.3 wt %) crystal. Changes of the pattern of the central spot of diffusion photorefractive scattering of light have been recorded that accompany multiple irradiation of the crystal (P= 1-2 mW, λ=0.6328 μm) and successive thermal annealing for 30 min at a temperature of 473 K.