Infrared absorption and Raman scattering on coupled plasmon--phonon modes in superlattices
Materials Science
2009-11-11 v1 Mesoscale and Nanoscale Physics
Abstract
We consider theoretically a superlattice formed by thin conducting layers separated spatially between insulating layers. The dispersion of two coupled phonon-plasmon modes of the system is analyzed by using Maxwell's equations, with the influence of retardation included. Both transmission for the finite plate as well as 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 evaluate also the Raman cross section from the semi-infinite superlattice.
Keywords
Cite
@article{arxiv.cond-mat/0510784,
title = {Infrared absorption and Raman scattering on coupled plasmon--phonon modes in superlattices},
author = {L. A. Falkovsky and E. G. Mishchenko},
journal= {arXiv preprint arXiv:cond-mat/0510784},
year = {2009}
}
Comments
20 pages,14 figures