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Single-photon emission at a rate of 143 MHz from a deterministic quantum-dot microlens triggered by a mode-locked vertical-external-cavity surface-emitting laser

We report on the realization of a quantum dot (QD) based single-photon source with a record-high single-photon emission rate. The quantum light source consists of an InGaAs QD which is deterministically integrated within a monolithic microlens with a distributed Bragg reflector as back-side mirror,...

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Bibliographic Details
Published in:Applied physics letters 2015-07, Vol.107 (4)
Main Authors: Schlehahn, A., Gaafar, M., Vaupel, M., Gschrey, M., Schnauber, P., Schulze, J.-H., Rodt, S., Strittmatter, A., Stolz, W., Rahimi-Iman, A., Heindel, T., Koch, M., Reitzenstein, S.
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Language:English
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Summary:We report on the realization of a quantum dot (QD) based single-photon source with a record-high single-photon emission rate. The quantum light source consists of an InGaAs QD which is deterministically integrated within a monolithic microlens with a distributed Bragg reflector as back-side mirror, which is triggered using the frequency-doubled emission of a mode-locked vertical-external-cavity surface-emitting laser (ML-VECSEL). The utilized compact and stable laser system allows us to excite the single-QD microlens at a wavelength of 508 nm with a pulse repetition rate close to 500 MHz at a pulse width of 4.2 ps. Probing the photon statistics of the emission from a single QD state at saturation, we demonstrate single-photon emission of the QD-microlens chip with g(2)(0) 
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4927429