2003/12/31 by Pawel Machnikowski, Lucjan Jacak
Physics and Astronomy · #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.71.115309
published as Phys. rev. B 71 (2005) 115309 · 10 pages, 2 figures
arxiv created 2005/07/04 · arxiv updated 2009/12/01
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.