Ultrafast relaxation of F-H-centre in KBr:OH-

被引：0
|
作者：
Prosposito, P [1 ]
Casalboni, M [1 ]
Ignozza, F [1 ]
Grassano, UM [1 ]
机构：
[1] UNIV CAMERINO,DIPARTIMENTO MATEMAT & FIS,I-62032 CAMERINO,MC,ITALY
来源：
RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1995年 / 134卷 / 1-4期
关键词：
ultrafast spectroscopy; color centers; alkali halides; nonradiative processes;
D O I：
10.1080/10420159508227260
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In this paper we present measurements of the lifetime of the optical cycle of the F-H center in KBr:OH- obtained by means of a pump and probe technique with picosecond resolution. Different behavior has been observed before and after the F --> F-H conversion. The temperature dependence of the nonradiative process shows that its activation energy is of about 100 cm(-1), the same order of magnitude of the local mode energy of the F center.
引用
收藏
页码：417 / 420
页数：4
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