Bleaching Dynamics In InAs Self-Assembled Quantum Dots

Carrier capture processes within the transient absorption spectrum of self-assembled quantum dots are investigated by means of time-resolved pump-probe differential reflection spectroscopy at various temperatures. The bleaching dynamics depends strongly on the excitation density. At low excitation d...

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Bibliographic Details
Main Authors: Bogaart, E W, Haverkort, J E M, Mano, T, Notzel, R, Wolter, J H
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:Carrier capture processes within the transient absorption spectrum of self-assembled quantum dots are investigated by means of time-resolved pump-probe differential reflection spectroscopy at various temperatures. The bleaching dynamics depends strongly on the excitation density. At low excitation densities the carrier capture process is governed by single LO-phonon emission whereas Auger effects dominate the overall capture process at high densities.
ISSN:0094-243X
DOI:10.1063/1.1994314