14 March 2013 Bloch-wave engineered submicron-diameter quantum-dot micropillars for cavity QED experiments
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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.
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Niels Gregersen, Niels Gregersen, Matthias Lermer, Matthias Lermer, Stephan Reitzenstein, Stephan Reitzenstein, Sven Höfling, Sven Höfling, Jesper Mørk, Jesper Mørk, Lukas Worschech, Lukas Worschech, Martin Kamp, Martin Kamp, Alfred Forchel, 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); doi: 10.1117/12.2004137; https://doi.org/10.1117/12.2004137

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