Author： Karpushin P. Kruglov V. Gusev A. Shandarov V. Kip D. Rüter C.
Publisher： Springer Publishing Company
ISSN： 1064-8887
Source： Russian Physics Journal, Vol.49, Iss.11, 2006-11, pp. : 1236-1240
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Abstract
Special features of the optical transmission of lithium niobate crystal samples with surface doping by photorefractive impurities at the wavelength of a helium-neon laser under short-wavelength incoherent background illumination are experimentally investigated and discussed. The possibility of optically controlled thermooptical modulation of the coherent light intensity with characteristic time of a few seconds is demonstrated for samples with surface doping by a combination of iron and copper ions.
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