RELAXATION DYNAMICS IN COLOR-CENTERS - CLASSICAL AND QUANTAL DESCRIPTIONS

被引：3

作者：

RANFAGNI, A ^{[1
]}

MUGNAI, D ^{[1
]}

ENGLMAN, R ^{[1
]}

机构：

[1] SOREQ NUCL RES CTR,IL-70600 YAVNE,ISRAEL

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1990年 / 51卷 / 07期

关键词：

crystal defects; defect levels; Impurity levels; optical materials; optical properties; semi-classical theories and applications;

D O I：

10.1016/0022-3697(90)90142-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This article briefly reviews recent contributions, mainly by the authors, to relaxation dynamics. The decay characteristics (in particular the temperature dependence) of the picosecond relaxation in the excited state of color centers, namely the Ag- in KI and the FA(II) in KCl:Li are interpreted by a vibrational relaxation within the same electronic state, using classical and quantal descriptions. The two approaches are compared and discussed. In the case of Ag- it is suggested that an important role is played by a tunneling mechanism concomitant with the relaxation process. © 1990.

引用

页码：653 / 662

页数：10

共 28 条

[1] INTRA-MOLECULAR RATE-PROCESSES IN HIGHLY VIBRATIONALLY EXCITED BENZENE [J].