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Regensburg 2019 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 35: HL Poster II

HL 35.35: Poster

Mittwoch, 3. April 2019, 17:30–20:00, Poster E

Pulsed electrically excited single-photon emission from a determnistically integrated quantum dot in a resonant cavity light emitting diode — •Simon Seyfferle, Marc Sartison, Sascha Kolatschek, Simone L. Portalupi, Michael Jetter, and Peter Michler — Institut für Halbleiteroptik und funktionelle Grenzflächen, Universität Stuttgart, Allmandring 3, 70569 Stuttgart

The realization of future quantum technologies based on semiconductor single-photon sources and the performances of the individual implemented device crucially depend on the systems parameters such as a high repetition rate of pure and triggered single photons, high transfer rates and a convenient method of excitation.

On the way to realizing an efficient device satisfying these requirements, we combine two promising approaches, namely deterministic integration of a quantum dot (QD) into the device by in-situ lithography and electric excitation of the resulting resonant cavity light emitting diodes (RCLED). With the in-situ approach we selectively place a single InP QD into the intrinsic region of a pin-diode, which in turn enables the pulsed electric excitation of the RCLED with high repetition rates. The inclusion of InP dots allows for emission in the red spectral regime, where the maximum detection efficiency of conventional silicon-based photo-detectors is situated, thus high transfer rates in future quantum information processing experiments should be feasible.

We show the process of such a device as well as first results on electrically triggered single-photon emission.

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