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Polarization anisotropic luminescence of tunable single lateral quantum dot molecules

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Title: Polarization anisotropic luminescence of tunable single lateral quantum dot molecules
Authors: Hermannstädter, C. Browse this author
Witzany, M. Browse this author
Heldmaier, M. Browse this author
Hafenbrak, R. Browse this author
Jöns, K. D. Browse this author
Beirne, G. J. Browse this author
Michler, P. Browse this author
Issue Date: 15-Mar-2012
Publisher: American Institute of Physics
Journal Title: Journal of Applied Physics
Volume: 111
Issue: 6
Start Page: 063526
Publisher DOI: 10.1063/1.3697982
Abstract: We investigate the photoluminescence polarization anisotropy of self-assembled individual lateral InGaAs/GaAs quantum dot molecules. In contrast to similarly grown single quantum dots, the dot molecules exhibit a remarkable degree of linear polarization, which remains almost unchanged when a lateral electric field is applied to tune the exciton wave function and, thus, the luminescence spectral properties. We discuss the nature of this polarization anisotropy and suggest possible causes based on the system's symmetry and heterostructure alloy composition.
Rights: Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 111, 063526 (2012) and may be found at
Type: article
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Claus Hermannstädter

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