Ann. Phys. Fr.
Volume 32, Number 2-3, 2007COLOQ'1010th conference on lasers and quantum optics
|Page(s)||151 - 154|
|Published online||23 May 2008|
A novel high-efficiency single-mode single photon source
CEA-CNRS group “Nanophysique et Semiconducteurs”, CEA/INAC/SP2M, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
2 Institut d'Optique/LCFIO, RD128, 91127 Palaiseau Cedex, France
Corresponding author: email@example.com
We present a novel single-mode single photon source exploiting the emission of a semiconductor quantum dot (QD) located inside a photonic wire. We first show theoretically that for optimized designs, more than 95% of the QD spontaneous emission (SE) can be injected into the fundamental guided mode of the photonic wire. A single photon collection efficiency of 17% is measured in a preliminary experiment performed on a single InAs QD located within a 250 nm diameter cylinder of GaAs. Because this photon collection strategy does not exploit the Purcell effect, it could also be efficiently applied to broadband single photon emitters such as F-centers in diamond.
© EDP Sciences, 2008