Effect of dielectric medium anisotropy on the polarization degree of emission from a single quantum dash

P. Mrowinski*, K. Tarnowski, J. Olszewski, A. Somers, M. Kamp, Sven Höfling, J. P. Reithmaier, W. Urbanczyk, J. Misiewicz, P. Machnikowski, G. Sek

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationActa Physica Polonica A
Subtitle of host publicationProceedings of the 44th International School and Conference on the Physics of Semiconductors "Jaszowiec 2015", Wisła, Poland, June 20-25, 2015
PublisherInstitute of Physics, Polish Academy of Sciences
PagesA48-A52
Number of pages5
Volume129
DOIs
Publication statusPublished - Jan 2016
Event44th Jaszowiec International School and Conference on the Physics of Semiconductors (IS and CPS) - Wisla, Poland
Duration: 20 Jun 201525 Jun 2015

Conference

Conference44th Jaszowiec International School and Conference on the Physics of Semiconductors (IS and CPS)
Country/TerritoryPoland
Period20/06/1525/06/15

Keywords

  • Dots
  • Nanowires

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