Dynamics of local modes during nonradiative relaxation

被引：33

作者：

Calistru, DM ^{[1
]}

Demos, SG ^{[1
]}

Alfano, RR ^{[1
]}

机构：

[1] CUNY,GRAD SCH,NEW YORK,NY 10031

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.78.374

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The direct participation of local modes in nonradiative processes taking place in impurity-doped laser crystals is investigated using time resolved resonance Raman scattering. The measured dynamics of the highest energy Cr4+ local mode in Cr:Mg2SiO4 shows that nonradiative relaxation proceeds via transfer of the nonequilibrium local mode population generated during the transition through an electronic bottleneck, to a select number of daughter phonons, and not directly, to the phonon continuum.

引用

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页码：374 / 377

页数：4

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