摘要
The light-induced absorption of barium titanate doped with rhodium(BaTiO3:Rh)is characterized in near-infrared spectral region.It decreases with the wavelength of the probe beam from 700 to 840 nm,and is significantly dependent on the polarization of the probe beam and insensitive to the polarization of the pump beam.The light-induced absorption as high as 0.32 cm^(-1) is obtained for ordinary-polarized probe beam atλ=730 nm.The observations are interpreted by the photorefractive two-center or one center with three valence states model.
作者
杨昌喜
朱镛
张道范
牛小娟
周棠
刘宏斌
吴星
YANG Chang-xi;ZHU Yong;ZHANG Dao-fan;NIU Xiao-juan;ZHOU Tang;WU Xing;LIU Hong-bin(Institute of Physics,Chinese Academy of Sciences,Beijing 100080)
基金
Supported by the National Natural Science Foundation of China under Grant No.59672005。