Resonant driving of a single photon emitter embedded in a mechanical oscillator

Munsch, Mathieu and Kuhlmann, Andreas V. and Cadeddu, Davide and Gerard, Jean-Michel and Claudon, Julien and Poggio, Martino and Warburton, Richard J.. (2017) Resonant driving of a single photon emitter embedded in a mechanical oscillator. Nature Communications, 8. p. 76.

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Coupling a microscopic mechanical resonator to a nanoscale quantum system enables control of the mechanical resonator via the quantum system and vice-versa. The coupling is usually achieved through functionalization of the mechanical resonator, but this results in additional mass and dissipation channels. An alternative is an intrinsic coupling based on strain. Here we employ a monolithic semiconductor system: the nanoscale quantum system is a semiconductor quantum dot (QD) located inside a nanowire. We demonstrate the resonant optical driving of the QD transition in such a structure. The noise spectrum of the resonance fluorescence signal, recorded in the single-photon counting regime, reveals a coupling to mechanical modes of different types. We measure a sensitivity to displacement of 65 fm/root Hz limited by charge noise in the device. Finally, we use thermal excitation of the different modes to determine the location of the QD within the trumpet, and calculate the contribution of the Brownian motion to the dephasing of the emitter.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimental Physics (Warburton)
05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Munsch, Mathieu and Kuhlmann, Andreas and Cadeddu, Davide and Warburton, Richard J and Poggio, Martino
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Nature Publishing Group
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:27 Jul 2018 13:30
Deposited On:20 Sep 2017 11:15

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