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Symmetries and the Polarized Optical Spectra of Exciton Complexes in Quantum Dots
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.
Ecole Polytech Fed Lausanne.
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2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 107, no 12, 127403- p.Article in journal (Refereed) Published
Abstract [en]

A systematic and simple theoretical approach is proposed to analyze true degeneracies and polarized decay patterns of exciton complexes in semiconductor quantum dots. The results provide reliable spectral signatures for efficient symmetry characterization, and predict original features for low C(2 nu) and high C(3 nu) symmetries. Excellent agreement with single quantum dot spectroscopy of real pyramidal InGaAs/AlGaAs quantum dots grown along [111] is demonstrated. The high sensitivity of biexciton quantum states to exact high symmetry can be turned into an efficient uninvasive postgrowth selection procedure for quantum entanglement applications.

Place, publisher, year, edition, pages
American Physical Society , 2011. Vol. 107, no 12, 127403- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-71219DOI: 10.1103/PhysRevLett.107.127403ISI: 000295003400013OAI: diva2:446348
Available from: 2011-10-07 Created: 2011-10-07 Last updated: 2015-01-23

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Karlsson, FredrikHoltz, Per-Olof
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