Abstract
The results of experimental investigations into the dynamics of light-induced absorption for coherent incident light (the wavelength λ = 633 nm) and incoherent radiation of a light emitting diode (λ ≈ 660 nm) in single bismuth titanate crystals with different stoichiometric structures are presented. It is demonstrated that the dynamics of two-wave interaction on the photorefractive reflection grating in (100)-cut samples illuminated with coherent light is nonmonotonic in character. Light-induced changes in the absorption coefficient and the efficiency of interaction on the reflection grating increase when the titanium oxide content in the examined samples decreases.
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Veretennikov, S.Y., Mandel', A.E., Shandarov, S.M. et al. Effect of Stoichiometry on the Light-Induced Absorption and Two-Beam Interaction of Light on a Reflection Grating in Bismuth Titanate Crystals. Russian Physics Journal 46, 149–156 (2003). https://doi.org/10.1023/A:1024689828306
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DOI: https://doi.org/10.1023/A:1024689828306