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: firstname.lastname@example.org
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.
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