Effect of Dielectric Medium Anisotropy on the Polarization Degree of Emission from a Single Quantum Dash

• Authors: P. Mrowiński , K. Tarnowski , J. Olszewski , A. Somers , M. Kamp , S. Höfling , J. Reithmaier , W. Urbańczyk , J. Misiewicz , P. Machnikowski , G. Sęk
• Languages of publication: EN

Abstracts

EN

Excitonic emission from single InAs/InGaAlAs/InP quantum dashes has been investigated in the context of degree of linear polarization by post-growth modification of its surrounding dielectric medium. We present optical spectroscopy measurements on a symmetric squared pedestal structures (mesas), and asymmetric rectangular ones oriented parallel or perpendicular to the main in-plane axis of the dashes [1-10]. Polarization resolved microphotoluminescence shows a significant quantitative modification of the degree of linear polarization value from -20% up to 70%. These results have been confronted with calculations of the coupling between the exciton transition dipole moment and electromagnetic field distributed in the vicinity of a quantum dash inside a processed mesa.

Keywords

EN

78.67.Hc; 71.35.-y; 78.55.-m

Discipline

• 78.67.Hc: Quantum dots
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
• 71.35.-y: Excitons and related phenomena

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 129
• Issue: 1a
• Pages: A-48-A-52

Dates

published

2016-01

Contributors

author

P. Mrowiński

• Laboratory for Optical Spectroscopy of Nanostructures, Department of Experimental Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

K. Tarnowski

• Department of Optics and Photonics, Wrocław University of Technology, Wrocław, Poland

author

J. Olszewski

• Department of Optics and Photonics, Wrocław University of Technology, Wrocław, Poland

author

A. Somers

• Technische Physik, W.C. Röntgen-Center for Complex Material Systems, Universität Würzburg, Germany

author

M. Kamp

• Technische Physik, W.C. Röntgen-Center for Complex Material Systems, Universität Würzburg, Germany

author

S. Höfling

• Technische Physik, W.C. Röntgen-Center for Complex Material Systems, Universität Würzburg, Germany
• SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, KY16 9SS St. Andrews, United Kingdom

author

J. Reithmaier

• Institute of Nanostructure Technologies and Analytics (INA), CINSaT, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany

author

W. Urbańczyk

• Department of Optics and Photonics, Wrocław University of Technology, Wrocław, Poland

author

J. Misiewicz

• Laboratory for Optical Spectroscopy of Nanostructures, Department of Experimental Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

author

P. Machnikowski

• Department of Theoretical Physics, Wrocław University of Technology, Wrocław, Poland

author

G. Sęk

• Laboratory for Optical Spectroscopy of Nanostructures, Department of Experimental Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

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Identifiers

DOI

10.12693/APhysPolA.129.A-48