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Proceedings Paper

Bloch-wave engineered submicron-diameter quantum-dot micropillars for cavity QED experiments
Author(s): Niels Gregersen; Matthias Lermer; Stephan Reitzenstein; Sven Höfling; Jesper Mørk; Lukas Worschech; Martin Kamp; Alfred Forchel
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Paper Abstract

The semiconductor micropillar is attractive for cavity QED experiments. For strong coupling, the figure of merit is proportional to Q/√V, and a design combining a high Q and a low mode volume V is thus desired. However, for the standard submicron diameter design, poor mode matching between the cavity and the DBR Bloch mode limits the Q. We present a novel adiabatic design where Bloch-wave engineering is employed to improve the mode matching, allowing the demonstration of a record-high vacuum Rabi splitting of 85 μeV and a Q of 13600 for a 850 nm diameter micropillar.

Paper Details

Date Published: 14 March 2013
PDF: 7 pages
Proc. SPIE 8619, Physics and Simulation of Optoelectronic Devices XXI, 86190X (14 March 2013); doi: 10.1117/12.2004137
Show Author Affiliations
Niels Gregersen, Technical Univ. of Denmark (Denmark)
Matthias Lermer, Julius-Maximilians-Univ. Würzburg (Germany)
Stephan Reitzenstein, Julius-Maximilians-Univ. Würzburg (Germany)
Sven Höfling, Julius-Maximilians-Univ. Würzburg (Germany)
Jesper Mørk, Technical Univ. of Denmark (Denmark)
Lukas Worschech, Julius-Maximilians-Univ. Würzburg (Germany)
Martin Kamp, Julius-Maximilians-Univ. Würzburg (Germany)
Alfred Forchel, Julius-Maximilians-Univ. Würzburg (Germany)


Published in SPIE Proceedings Vol. 8619:
Physics and Simulation of Optoelectronic Devices XXI
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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