LO-phonon dispersion effect on exciton attenuation and energy shift in polar crystals

Nicolas I. Grigorchuk

doi:10.1117/12.569614

20 July 2004 LO-phonon dispersion effect on exciton attenuation and energy shift in polar crystals

Nicolas I. Grigorchuk

Proceedings Volume 5507, XVI International Conference on Spectroscopy of Molecules and Crystals; (2004) https://doi.org/10.1117/12.569614
Event: XVI International Conference on Spectroscopy of Molecules and Crystals, 2003, Sevastopol, Ukraine

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.

Citation Download Citation

Nicolas I. Grigorchuk "LO-phonon dispersion effect on exciton attenuation and energy shift in polar crystals", Proc. SPIE 5507, XVI International Conference on Spectroscopy of Molecules and Crystals, (20 July 2004); https://doi.org/10.1117/12.569614

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