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28 May 2013 The photonic nanowire: an emerging platform for highly efficient single-photon sources for quantum information applications
Niels Gregersen, Mathieu Munsch, Nitin S. Malik, Joël Bleuse, Emmanuel Dupuy, Adrien Delga, Jesper Mørk, Jean-Michel Gérard, Julien Claudon
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Proceedings Volume 8749, Quantum Information and Computation XI; 87490W (2013) https://doi.org/10.1117/12.2020622
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States
Abstract
Efficient coupling between a localized quantum emitter and a well defined optical channel represents a powerful route to realize single-photon sources and spin-photon interfaces. The tailored fiber-like photonic nanowire embedding a single quantum dot has recently demonstrated an appealing potential. However, the device requires a delicate, sharp needle-like taper with performance sensitive to minute geometrical details. To overcome this limitation we demonstrate the photonic trumpet, exploiting an opposite tapering strategy. The trumpet features a strongly Gaussian far-field emission. A first implementation of this strategy has lead to an ultra-bright single-photon source with a first-lens external efficiency of 0.75 ± 0.1 and a predicted coupling to a Gaussian beam of 0.61 ± 0.08.
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Niels Gregersen, Mathieu Munsch, Nitin S. Malik, Joël Bleuse, Emmanuel Dupuy, Adrien Delga, Jesper Mørk, Jean-Michel Gérard, and Julien Claudon "The photonic nanowire: an emerging platform for highly efficient single-photon sources for quantum information applications", Proc. SPIE 8749, Quantum Information and Computation XI, 87490W (28 May 2013); https://doi.org/10.1117/12.2020622
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KEYWORDS
Nanowires
Photonic nanostructures
Mirrors
Surface plasmons
Gaussian beams
Quantum efficiency
Quantum information
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