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arXiv · 1512.01048

Deterministic generation of bright single resonance fluorescence photons from a Purcell-enhanced quantum dot-micropillar system

Sebastian Unsleber·Christian Schneider·Sebastian Maier·Yu-Ming He·Stefan Gerhardt·Chao-Yang Lu·Jian-Wei Pan·Martin Kamp·Sven Höfling
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Abstract

We report on the observation of bright emission of single photons under pulsed resonance fluorescence conditions from a single quantum dot (QD) in a micropillar cavity. The brightness of the QD fluorescence is greatly enhanced via the coupling to the fundamental mode of a micropillar, allowing us to determine a single photon extraction efficiency of $(20.7\pm0.8)~\%$ per linear polarization basis. This yields an overall extraction efficiency of $(41.4\pm1.5)~\%$ in our device. We observe the first Rabi-oscillation in a weakly coupled quantum dot-micropillar system under coherent pulsed optical excitation, which enables us to deterministically populate the excited QD state. In this configuration, we probe the single photon statistics of the device yielding $g^{(2)}(0)=0.072\pm0.011$ at a QD-cavity detuning of $75~\mu$eV.

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Sebastian Unsleber, Christian Schneider, Sebastian Maier, Yu-Ming He, Stefan Gerhardt, Chao-Yang Lu, Jian-Wei Pan, Martin Kamp, Sven Höfling. 2015-12-03. Deterministic generation of bright single resonance fluorescence photons from a Purcell-enhanced quantum dot-micropillar system. https://doi.org/10.1364/oe.23.032977

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