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Erasure of photorefractive gratings in barium titanate

J. Li, X. H. Li, Feiyue Lu, H. F. Wang, Shuai Yuan, Yanyan Zhu, Xing Wu

Open publisher page 5 citations

Abstract

An analytical solution of the light-induced decay of the photorefractive gratings from the charge transport equations with shallow and deep traps is presented. It is predicted that the light-induced decay curve is biexponential, and a superposition of the shallow- and deep-trap decays in the special case is suggested. The prediction is verified in the light-induced photorefractive grating erasure experiments. The erasing intensity dependence of photoconductivity of the BaTiO3 sample is also presented.

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An analytical solution of the light-induced decay of the photorefractive gratings from the charge transport equations with shallow and deep traps is presented. It is predicted that the light-induced decay curve is biexponential, and a superposition of the shallow- and deep-trap decays in the special case is suggested. The prediction is verified in the light-induced photorefractive grating erasure experiments. The erasing intensity dependence of photoconductivity of the BaTiO3 sample is also presented.

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Available abstract

An analytical solution of the light-induced decay of the photorefractive gratings from the charge transport equations with shallow and deep traps is presented. It is predicted that the light-induced decay curve is biexponential, and a superposition of the shallow- and deep-trap decays in the special case is suggested. The prediction is verified in the light-induced photorefractive grating erasure experiments. The erasing intensity dependence of photoconductivity of the BaTiO3 sample is also presented.

Key concepts: Photorefractive effect, Erasure, Superposition principle, Grating, Barium titanate, Photoconductivity, Organic photorefractive materials, Materials science

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