High brightness single photon sources based on photonic wires

Author

Claudon, J. ; Bleuse, J. ; Bazin, M. ; Malik, N.S. ; Jaffrennou, P. ; Lalanne, P. ; Gregersen, N. ; Gérard, J.M.

Author_Institution

Joint group CEA-CNRS, CEA, Grenoble, France

fYear

2009

fDate

June 28 2009-July 2 2009

Firstpage

1

Lastpage

4

Abstract

We present a novel single-photon-source based on the emission of a semiconductor quantum dot embedded in a single-mode photonic wire. This geometry ensures a very large coupling (> 95%) of the spontaneous emission to the guided mode. Numerical simulations show that a photon collection efficiency as large as 90% can be obtained for engineered nanowires with a tapered tip and a metallic bottom mirror coated by a thin dielectric layer. Experimentally, a record-high efficiency of 75 plusmn 10% (for a NA = 0.75 collection optics) has been measured for an InAs quantum dot embedded in such a nanowire, made of GaAs and defined by reactive-ion etching.

Keywords

III-V semiconductors; dielectric thin films; gallium arsenide; indium compounds; integrated optics; light sources; mirrors; nanophotonics; nanowires; optical films; optical waveguides; semiconductor quantum dots; spontaneous emission; sputter etching; InAs quantum dot; InAs-GaAs; engineered nanowires; guided mode; high brightness sources; metallic bottom mirror; photon collection efficiency; photonic wires; reactive-ion etching; semiconductor quantum dot; single photon sources; single-mode photonic wire; spontaneous emission; thin dielectric layer; Brightness; Dielectrics; Geometry; Mirrors; Nanowires; Numerical simulation; Optical recording; Quantum dots; Spontaneous emission; Wires; nanowire; quantum dot; single photon source; tapering; waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on

Conference_Location

Azores

Print_ISBN

978-1-4244-4825-8

Electronic_ISBN

978-1-4244-4827-2

Type

conf

DOI

10.1109/ICTON.2009.5185192

Filename

5185192