STUDY OF THE SELF-TRAPPED EXCITON AND F-CENTER FORMATION ON A PICOSECOND TIME SCALE IN KBR

被引：16

作者：

ORTEGA, JM ^{[1
]}

机构：

[1] USN,RES LAB,WASHINGTON,DC 20375

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.19.3222

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied optical absorption at 694 nm in KBr, on a picosecond time scale, after two-photon excitation by a 347-nm pulse. We have measured an F-center rise time of (15 ± 10) psec in the temperature range 300-660 K. The self-trapped exciton exhibits more complicated creation kinetics, with population of its lower state delayed by about 60 psec. In addition, we discuss a model of F-center production involving the free exciton as the precursor state. © 1979 The American Physical Society.

引用

页码：3222 / 3229

页数：8

共 27 条

[1]

BLOCK D, 1977, INT C DEFECTS INSULA, P46

[2] STUDY OF F-CENTER FORMATION IN KCL ON A PICOSECOND TIME SCALE [J].