Criterion for selecting phonons and local vibrations involved in the nonradiative relaxation of photoexcited Cr4+ ions in forsterite

被引：8

作者：

Demos, SG

Calistru, DM

Alfano, RR

机构：

[1] Institute for Ultrafast Spectroscopy and Lasers, New York State Center for Advanced Technology for Ultrafast Photonic Materials and Applications, Graduate School of the City University of New York, New York

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 09期

关键词：

D O I：

10.1063/1.115966

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The energy of Cr4+ local modes and the energy and dynamics of Mg2SiO4 phonon modes involved in the nonradiative relaxation of photoexcited impurity Cr4+ ions in forsterite crystal were measured. The experimental results suggest that resonance in energy between local vibrations of the impurity ion and lattice (phonon) modes of the host crystal plays a crucial role in selecting the phonons which participate in the nonradiative relaxation of the photoexcited ions in crystals. (C) 1996 American Institute of Physics.

引用

页码：1195 / 1197

页数：3

共 17 条

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