中国物理B ›› 1996, Vol. 5 ›› Issue (11): 833-839.doi: 10.1088/1004-423X/5/11/005

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

TEMPORAL CHARACTERISTICS OF DECAY OF LIGHT-INDUCED ABSORPTION IN PHOTOREFRACTIVE BaTiO3 CRYSTALS

张家森, 窦硕星, 高宏, 吴星, 叶佩弦   

  1. Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1996-03-12 出版日期:1996-11-20 发布日期:1996-11-20
  • 基金资助:
    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.

TEMPORAL CHARACTERISTICS OF DECAY OF LIGHT-INDUCED ABSORPTION IN PHOTOREFRACTIVE BaTiO3 CRYSTALS

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)   

  1. Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1996-03-12 Online:1996-11-20 Published:1996-11-20
  • Supported by:
    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.

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摘要： 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.

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.

中图分类号:  (Other nonlinear optical materials; photorefractive and semiconductor materials)

  • 42.70.Nq
78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))