Bloch-wave engineered submicron-diameter quantum-dot micropillars for cavity QED experiments

Niels Gregersen; Matthias Lermer; Stephan Reitzenstein; Sven Höfling; Jesper Mørk; Lukas Worschech; Martin Kamp; Alfred Forchel

doi:10.1117/12.2004137

14 March 2013 Bloch-wave engineered submicron-diameter quantum-dot micropillars for cavity QED experiments

Niels Gregersen, Matthias Lermer, Stephan Reitzenstein, Sven Höfling, Jesper Mørk, Lukas Worschech, Martin Kamp, Alfred Forchel

Author Affiliations +

Proceedings Volume 8619, Physics and Simulation of Optoelectronic Devices XXI; 86190X (2013) https://doi.org/10.1117/12.2004137
Event: SPIE OPTO, 2013, San Francisco, California, United States

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.

Citation Download Citation

Niels Gregersen, Matthias Lermer, Stephan Reitzenstein, Sven Höfling, Jesper Mørk, Lukas Worschech, Martin Kamp, and Alfred Forchel "Bloch-wave engineered submicron-diameter quantum-dot micropillars for cavity QED experiments", Proc. SPIE 8619, Physics and Simulation of Optoelectronic Devices XXI, 86190X (14 March 2013); https://doi.org/10.1117/12.2004137

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