Dresden 2017 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 63: Poster: Quantum Dots and Optics
HL 63.63: Poster
Mittwoch, 22. März 2017, 15:00–19:00, P1A
All-optical tailoring of single-photon spectra in quantum-dot microcavity systems — •Dominik Breddermann1, Dirk Heinze1, Rolf Binder2, Artur Zrenner1, and Stefan Schumacher1,2 — 1Department of Physics and Center for Optoelectronics and Photonics Paderborn (CeOPP), Paderborn University, Warburger Strasse 100, 33098 Paderborn, Germany — 2College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
Quantum-dot microcavity systems are promising nanostructures for solid-state based on-demand generation of single photons. Commonly, the spectral properties, such as frequency and linewidth, of the emitted single photon are pre-determined by the characteristics of the system, such as electronic transition energies and spectral properties of the resonator. Here, we theoretically analyze the spectral properties of a single photon generated from partly stimulated non-degenerate two-photon transitions [1] in quantum-dot-based multilevel systems in different configurations. We demonstrate that frequency and linewidth of the single photon are determined by the external control beam [2], and thus can be all-optically controlled during the photon-creation process.
[1] D. Heinze, D. Breddermann, et al., Nature Commun. 6, 8473 (2015) [2] D. Breddermann, D. Heinze, et al., Phys. Rev. B 94, 165310 (2016)