open access

https://hdl.handle.net/2115/49210

Polarization anisotropic luminescence of tunable single lateral quantum dot molecules

英語

2012-03-15

American Institute of Physics

Journal of Applied Physics

111(6)

063526

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.

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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 https://dx.doi.org/10.1063/1.3697982

0021-8979