Exciton-LO-phonon quantum kinetics in InAs/GaAs quantum dots: effects of zone-edge phonon damping

  • 10 December 2003
Abstract
The kinetics of 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 zone-edge decay process in the absorption spectrum and time evolution are highlighted, providing a possible way of experimental investigation on phonon anharmonicity effects.

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