RESONANT SCATTERING OF LIGHT BY SLOWLY FLUCTUATING LOCALIZED-ELECTRONS

被引：14

作者：

HIZHNYAKOV, V

TEHVER, I

机构：

[1] Institute of Physics, Academy of Sciences of the Estonian Ssr

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1979年 / 95卷 / 01期

关键词：

D O I：

10.1002/pssb.2220950107

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of slow fluctuations on resonant scattering of light by localized electrons is considered in the systems with a central peak. The cases of excitation in the regions of broad phonon wing of the absorption spectrum and of zero‐phonon line are discussed. It is shown that the spectrum of resonant scattering essentially depends on the fluctuation amplitude ≪0 and rate γ as well as on the radiative damping rate γ. In particular, in case γ ≪ γ ≪ ε0 (limit of nearly static fluctuations), at an excitation in the region of zero‐phonon line, the resonant emission line becomes fluctuationally broadened by ε0 (γ/2γ)1/2. In glasses at T → O this broadening mechanism should be dominant as its contribution decreases slowly with temperature (∼ T2). Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：65 / 73

页数：9

共 20 条

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