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Dynamic switching of hole character and single photon polarization using the quantum confined Stark effect in quantum dot-in-dot structures
Ecole Polytech Fed Lausanne.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-4547-6673
Ecole Polytech Fed Lausanne.
2010 (English)In: Nanotechnology, ISSN 0957-4484, E-ISSN 1361-6528, Vol. 21, no 28, 285202- p.Article in journal (Refereed) Published
Abstract [en]

The engineering of the three-dimensional (3D) heterostructure potential in GaAs/AlGaAs pyramidal quantum dot-in-dots (DiDs) provides control over the valence band symmetry and hence on the polarization of the emitted photons. We propose a technique for dynamic switching of hole character and photon polarization in DiDs by means of an applied electric field. The structural parameters required for producing this effect are discussed. Asymmetric DiDs are found to be particularly suitable for obtaining switching with fields smaller than 1 kV cm(-1). The proposed device enables generation of single photons with dynamic control on the photon polarization, with potential applications in quantum information technology.

Place, publisher, year, edition, pages
Institute of Physics; 1999 , 2010. Vol. 21, no 28, 285202- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-58258DOI: 10.1088/0957-4484/21/28/285202ISI: 000279259100009OAI: diva2:337969
Available from: 2010-08-10 Created: 2010-08-09 Last updated: 2015-01-23

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Karlsson, Fredrik
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