NONLINEAR MECHANISM OF MULTIPHONON RELAXATION OF THE ENERGY OF ELECTRONIC EXCITATION IN OPTICAL-CRYSTALS DOPED WITH RARE-EARTH IONS

被引:37
作者
ORLOVSKII, YV [1 ]
PUKHOV, KK [1 ]
BASIEV, TT [1 ]
TSUBOI, T [1 ]
机构
[1] KYOTO SANGYO UNIV, FAC ENGN, KYOTO 603, JAPAN
基金
日本学术振兴会; 俄罗斯基础研究基金会;
关键词
D O I
10.1016/0925-3467(95)00012-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A review of the nonlinear theory of multiphonon relaxation (MR) in the crystal-field approximation and the super-weak electron-phonon coupling limit is presented, The analysis of the measured multiphonon relaxation rate dependence on the number of phonons involved in the nonradiative transition in a LiYF4:Er3+ crystal was done considering both the Coulomb interaction between the rare-earth ions and the ligands and the corrections to the Coulomb interaction resulting from the spatial distribution of the ligand electronic charge, the energy of exchange interactions and the contributions from the charge transfer states.
引用
收藏
页码:583 / 595
页数:13
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