Regensburg 2016 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 57: Quantum Dots and Wires: Quantum Optics II

HL 57.1: Vortrag

Mittwoch, 9. März 2016, 12:15–12:30, H15

Photon Statistics Excitation Spectroscopy of a Single Two Level System — •Max Strauß¹, Marlon Placke¹, Sören Kreinberg¹, Christian Schneider², Martin Kamp², Sven Höfling^2,3, Janik Wolters¹, and Stephan Reitzenstein¹ — ¹Institut für Festkörperphysik, TU Berlin, Germany — ²Technische Physik, Universität Würzburg, Germany — ³SUPA, School of Physics and Astronomy, University of St. Andrews, UK

The interaction of a coherent light wave with a fermionic two level system (TLS) is one of the corner stones of modern quantum optics. Interestingly, its inherent nonlinearity makes it also an ideal probe for the photon statistics of the interacting light field. In recent years this exciting field of quantum optics has been extended from atomic systems to semiconductor nanostructures, e.g. to the coherent control of self-assembled quantum dots (QDs). Here, we address a so far unexplored regime of resonance fluorescence in which the QD is excited not with a laser but with a narrowband chaotic light source. By analysing the resonantly scattered emission of the TLS, we find that the photon statistics of the excitation source greatly influences the TLS's dynamics in quantitative agreement with theoretical predictions.