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Deterministic generation of bright single resonance fluorescence photons from a Purcell-enhanced quantum dot-micropillar system (1512.01048v1)

Published 3 Dec 2015 in quant-ph and cond-mat.mes-hall

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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