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Title: Light-induced absorption in photorefractive BaTiO3 crystals
Authors: Banyal, R. K
Prasad, B. R
Keywords: Barium compounds;Photorefractive materials;Light absorption
Issue Date: 15-Jun-2003
Publisher: American Institute of Physics
Citation: Journal of Applied Physics, Vol. 93, No. 12, pp. 9466 - 9469
Abstract: We present the experimental results on the measurement of temporal and steady-state light-induced absorption change in undoped and rhodium-doped barium titanate (Rh:BaTiO3) crystals at different wavelengths and intensities. Theoretical calculations based on a two-center charge transport model agree well with the experimental results which supplement the earlier studies carried out using photorefractive BaTiO3 crystals. We also report a wavelength-specific light-induced effect that modifies the absorption dynamics in a peculiar manner. This can be attributed to light-induced thermal effects. However, the possibility of additional photorefractive centers becoming active cannot be ruled out
ISSN: 0021-8979
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Appears in Collections:IIAP Publications

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