Infrared absorption and Raman scattering on coupled plasmon-phonon modes in superlattices

被引：0
|
作者：
L. A. Falkovsky
E. G. Mishchenko
机构：
[1] Landau Institute for Theoretical Physics,Department of Physics
[2] University of Utah Salt Lake City,undefined
来源：
Journal of Experimental and Theoretical Physics | 2006年 / 102卷
关键词：
63.22.+m; 73.21.Cd; 78.30.-j;
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学科分类号：
摘要：
We theoretically consider a superlattice formed by thin conducting layers spatially separated between insulating layers. The dispersion of two coupled phonon-plasmon modes of the system is analyzed by using the Maxwell equations, with the retardation effect included. Both transmission for the finite plate and the absorption for the semi-infinite superlattice in the infrared are calculated. Reflectance minima are determined by the longitudinal and transverse phonon frequencies in the insulating layers and by the density-state singularities of the coupled modes. We also evaluate the Raman cross section from the semi-infinite superlattice.
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页码：661 / 670
页数：9
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