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

页码：165 / 170