Abstract We report the observations of the decay processes of light-induced absorption in one undoped and two Ce-doped BaTiO3 crystals. Two decay times were found, they had not a strong dependence on intensity in our experiment. We present a model with two different shallow trap centers to explain the experimental results. The theoretical and experimental resales agree well with each other. The light-induced absorption coefficients and decay times corresponding to the two shallow levels are also given.
Received: 12 March 1996
Accepted manuscript online:
PACS:
42.70.Nq
(Other nonlinear optical materials; photorefractive and semiconductor materials)
Fund: Project supported by a grant for key research project No.2 in Climbing programme from the State Science and Technology Commission of China, and also by the National Natural Science Foundation of China.
Cite this article:
ZHANG JIA-SEN (张家森), DOU SHUO-XING (窦硕星), GAO HONG (高宏), WU XING (吴星), YE PEI-XIAN (叶佩弦) TEMPORAL CHARACTERISTICS OF DECAY OF LIGHT-INDUCED ABSORPTION IN PHOTOREFRACTIVE BaTiO3 CRYSTALS 1996 Acta Physica Sinica (Overseas Edition) 5 833
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