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Proceedings Paper

Electrically pumped photonic nanowire single-photon source with an efficiency of 89%
Author(s): Niels Gregersen; Torben Roland Nielsen; Jesper Mørk; Julien Claudon; Jean-Michel Gérard
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Paper Abstract

We propose a new electrically-pumped single-photon source design based on a quantum dot in a photonic nanowire. For realistic parameters, the design features an efficiency of 89 % predicted by numerical simulations. Unlike cavity-based designs, our approach allows for broadband spontaneous emission control and has high tolerance towards surface roughness. In the nanowire, a geometrical effect ensures good coupling between the quantum dot and the optical mode, and an inverted tapering section is introduced to adiabatically expand the mode waist and control the far field emission profile while minimizing the relative modal overlap with the metal contacts.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79331X (21 February 2011); doi: 10.1117/12.873764
Show Author Affiliations
Niels Gregersen, Technical Univ. of Denmark (Denmark)
Torben Roland Nielsen, Technical Univ. of Denmark (Denmark)
Jesper Mørk, Technical Univ. of Denmark (Denmark)
Julien Claudon, CEA-CNRS Nanophysique et Semiconducteurs (France)
Jean-Michel Gérard, CEA-CNRS Nanophysique et Semiconducteurs (France)

Published in SPIE Proceedings Vol. 7933:
Physics and Simulation of Optoelectronic Devices XIX
Bernd Witzigmann; Fritz Henneberger; Yasuhiko Arakawa; Alexandre Freundlich, Editor(s)

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