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Proceedings Paper

LO-phonon dispersion effect on exciton attenuation and energy shift in polar crystals
Author(s): Nicolas I. Grigorchuk
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Paper Abstract

The Green functions method is applied to calculate the attenuation and energy shift of exciton in ionic crystals with the account for LO-phonon dispersion. In one-phonon approximation for weak coupling an analytical expression is obtained, which allows to study this problem depending on both the frequency interval and temperature of crystal. The TlCl and AgBr crystals were chosen as the models for illustrations.

Paper Details

Date Published: 20 July 2004
PDF: 4 pages
Proc. SPIE 5507, XVI International Conference on Spectroscopy of Molecules and Crystals, (20 July 2004); doi: 10.1117/12.569614
Show Author Affiliations
Nicolas I. Grigorchuk, Bogolyubov Institute for Theoretical Physics (Ukraine)


Published in SPIE Proceedings Vol. 5507:
XVI International Conference on Spectroscopy of Molecules and Crystals
Galyna O. Puchkovska; Tatiana A. Gavrilko; Olexandr I. Lizengevich, Editor(s)

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