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20 January 2012 Quantum optics with quantum dots in photonic nanowires
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Besides microcavities and photonic crystals, photonic nanowires have recently emerged as a novel resource for solidstate quantum optics. We will review recent studies which demonstrate an excellent control over the spontaneous emission of InAs quantum dots (QDs) embedded in single-mode GaAs photonic wires. On the basic side, we have demonstrated a strong inhibition (x 1/16) of QD SpE in thin wires (d<λ/2n), a nearly perfect coupling of the SpE to the guided mode (β>0.95 for d~λ/n), and polarization control in elliptical nanowires. A single QD in a photonic wire is thus an attractive system to explore the physics of the "one-dimensional atom" and build novel quantum optoelectronic devices. Quite amazingly, this approach has for instance permitted (unlike microcavity-based approaches) to combine for the first time a record-high efficiency (72%) and a negligible g(2) in a QD single photon source.
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Julien Claudon, Matthieu Munsch, Joël Bleuse, Philippe Lalanne, Niels Gregersen, and Jean-Michel Gérard "Quantum optics with quantum dots in photonic nanowires", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82681J (20 January 2012);


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