SPECTRAL SHIFTS OF OPTICAL-TRANSITIONS BETWEEN F-2+ AND F-2+-LIKE COLOR-CENTERS

被引:2
作者
DOUALAN, JL
ELAKRMI, A
GIRARD, S
MARGERIE, J
THUAU, M
机构
[1] Lab. de Spectroscopie Atomique, CNRS, ISMRA, Caen
关键词
D O I
10.1088/0953-8984/4/45/016
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Scnnaroglu and Pollock's model, reported in 1991, for the calculation of transition energies of laser-active (F2+)H centres in NaCl is slightly modified in order to make it applicable to other F2+-like colour centres, without the need for adjusting any parameter. Our version of the model is found to give good results in the cases of (F2+)H and (F2+)* centres, where the F2+ component of the defect is stabilized by an impurity (or a vacancy) bearing a net electrical charge with respect to the regular lattice ion it replaces. On the other hand, this model is unable to cope with centres such as (F2+)A, where the stabilizing substitutional impurity bears the same electrical charge as the regular lattice ion.
引用
收藏
页码:8823 / 8842
页数:20
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