| Autor: |
W. Urbanczyk, Sven Höfling, Karol Tarnowski, Martin Kamp, Johann Peter Reithmaier, Paweł Mrowiński, Jan Misiewicz, Paweł Machnikowski, Jacek Olszewski, Andre Somers, Grzegorz Sęk |
| Přispěvatelé: |
University of St Andrews. School of Physics and Astronomy, University of St Andrews. Condensed Matter Physics |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
ResearcherID |
| Popis: |
This research was supported by the Polish Ministry of Science and Higher Education/the National Science Center Grant No. 2011/02/A/ST3/00152. The experiments have partially been performed within the laboratory infrastructure financed by the Polish Ministry of Science and Higher Education Grant No. 6167/IA/119/2012. 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. Postprint |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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