Effect of uniaxial stress on excitons in a self-assembled quantum dot

Seidl, S., Kroner, M., Högele, A., Karrai, K., Warburton, R. J., Badolato, A. and Petroff, P. M. (2006) Effect of uniaxial stress on excitons in a self-assembled quantum dot. Applied Physics Letters, 88(20), 203113. (doi: 10.1063/1.2204843)

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Abstract

The fine structure of the neutral exciton in a single self-assembled InGaAs quantum dot is investigated under the effect of an applied uniaxial stress. The spectrum of the excitonic Rayleigh scattering was measured in reflectivity using high-resolution laser spectroscopy while the sample was submitted to a tunable uniaxial stress along its [110] crystal axis. We show that using this stretching technique, the quantum dot potential is elastically deformable such that the exciton fine structure splitting can be substantially reduced.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Badolato, Professor Antonio
Authors: Seidl, S., Kroner, M., Högele, A., Karrai, K., Warburton, R. J., Badolato, A., and Petroff, P. M.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Publisher:AIP Publishing
ISSN:0003-6951
ISSN (Online):1077-3118
Published Online:17 May 2006

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