arXiv:cond-mat/0312256 Abstract

arXiv:cond-mat/0312256Abstract References Reviews Resources

Exciton-LO-phonon dynamics in InAs/GaAs quantum dots: Effects of zone-edge phonon damping

Published 2003-12-10, updated 2005-07-04Version 2

The dynamics of an exciton-LO-phonon system after an ultrafast optical excitation in an InAs/GaAs quantum dot is studied theoretically. Influence of anharmonic phonon damping and its interplay with the phonon dispersion is analyzed. The signatures of the zone-edge decay process in the absorption spectrum and time evolution are highlighted, providing a possible way of experimental investigation on phonon anharmonicity effects.

Comments: 10 pages, 2 figures

Journal: Phys. rev. B 71 (2005) 115309

DOI: 10.1103/PhysRevB.71.115309

Categories: cond-mat.mes-hall

Keywords: inas/gaas quantum dot, zone-edge phonon damping, exciton-lo-phonon dynamics, phonon anharmonicity effects, zone-edge decay process

Tags: journal article

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