Light induced absorption in BaTiO3 and KNbO3 generated with high intensity laser pulses

被引：20
|
作者：
Buse, K. [1 ]
Kraetzig, E. [1 ]
机构：
[1] Universitaet Osnabrueck, Osnabrueck, Germany
来源：
Optical Materials | 1992年 / 1卷 / 03期
关键词：
Barium titanium oxide - Continuous wave (cw) illumination - Light induced absorption - Potassium niobium oxide - Shallow traps - Two center absorption model;
D O I：
10.1016/0925-3467(92)90024-H
中图分类号：
学科分类号：
摘要：
Light-induced absorption generated with nanosecond laser pulses (wavelength 532 nm, intensities up to 500 GWm-2) is investigated in BaTiO3 and KNbO3. The measurements strongly support the two-center model for absorption processes in these materials. Comparison with the results of cw experiments clearly indicates that at high light intensities additional shallow traps become active.
引用
收藏
页码：165 / 170
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