Dissemin is shutting down on January 1st, 2025

Published in

American Physical Society, Physical review B, 7(77)

DOI: 10.1103/physrevb.77.073303

Links

Tools

Export citation

Search in Google Scholar

Size dependence of the wavefunction of self-assembled InAs quantum dots from time-resolved optical measurements

Journal article published in 2008 by Jeppe Johansen, Søren Stobbe, Ivan S. Nikolaev, Toke Lund-Hansen, Philip T. Kristensen, Jorn M. Hvam, Willem L. Vos ORCID, Peter Lodahl
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Green circle
Published version: archiving allowed
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

The radiative and nonradiative decay rates of InAs quantum dots are measured by controlling the local density of optical states near an interface. From time-resolved measurements, we extract the oscillator strength and the quantum efficiency and their dependence on emission energy. From our results and a theoretical model, we determine the striking dependence of the overlap of the electron and hole wavefunctions on the quantum dot size. We conclude that the optical quality is best for large quantum dots, which is important in order to optimally tailor quantum dot emitters for, e.g., quantum electrodynamics experiments.