Freiburg 2019 – wissenschaftliches Programm
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FM: Fall Meeting
FM 86: Poster: Secure Communication & Computation
FM 86.5: Poster
Donnerstag, 26. September 2019, 16:30–18:30, Tents
Photoluminescence excitation spectroscopy of single quantum dots emitting in the 2nd and 3rd telecom windows — H. Salamon1, •P. Wyborski1, A. Maryński1, A. Musiał1, P. Podemski1, T. Heusler2, N. Srocka2, D. Quandt2, A. Strittmatter2, S. Rodt2, A. Kors3, J.P. Reithmaier3, M. Benyoucef2, S. Reitzenstein3, and G. Sek1 — 1Wrocław University of Science and Technology, Poland — 2Technical University of Berlin, Germany — 3University of Kassel, Germany
Photoluminescence excitation spectroscopy (PLE) allows for energy structure determination and energy transfer processes observation in semiconductor structures. Single dot PLE has always been challenging in the spectral range above 1 µ m . Here, we present how this technique was adapted to single quantum dots (InGaAs/GaAs and InAs/InP) emitting in the 2nd and 3rd telecom windows, including demonstration of excited states detection in single nanostructures. This kind of quantum dots are promising candidates for non-classical photon sources required for quantum communication and computation applications.
We acknowledge financial support via the "Quantum dot-based indistinguishable and entangled photon sources at telecom wavelengths" project carried out within the HOMING programme of the Foundation for Polish Science co-financed by the European Union under the European Regional Development Fund. This work was also financially supported by the German Federal Ministry of Education and Research (BMBF) within projects Q.com-H and Q.Link.X.