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Proceedings Paper

A photonic nanowire trumpet for interfacing a quantum dot and a Gaussian free-space mode
Author(s): Niels Gregersen; Mathieu Munsch; Nitin S. Malik; Joël Bleuse; Emmanuel Dupuy; Adrien Delga; Jesper Mørk; Jean-Michel Gérard; Julien Claudon
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Paper 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.

Paper Details

Date Published: 14 March 2013
PDF: 6 pages
Proc. SPIE 8619, Physics and Simulation of Optoelectronic Devices XXI, 86190Y (14 March 2013); doi: 10.1117/12.2004449
Show Author Affiliations
Niels Gregersen, Technical Univ. of Denmark (Denmark)
Mathieu Munsch, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Nitin S. Malik, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Joël Bleuse, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Emmanuel Dupuy, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Adrien Delga, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Jesper Mørk, Technical Univ. of Denmark (Denmark)
Jean-Michel Gérard, Joint group CEA-CNRS and CEA/INAC/SP2M (France)
Julien Claudon, Joint group CEA-CNRS and CEA/INAC/SP2M (France)


Published in SPIE Proceedings Vol. 8619:
Physics and Simulation of Optoelectronic Devices XXI
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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