Electrically pumped photonic nanowire single-photon source with an efficienty of 89%

Niels Gregersen, Torben Roland Nielsen, Jesper Mørk, Julien Claudon, Jean-Michel Gérard

Research output: Contribution to journalConference articleResearchpeer-review


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.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Pages (from-to)79331X
Publication statusPublished - 2011
EventPhysics and Simulation of Optoelectronic Devices - San Francisco , CA, USA
Duration: 1 Jan 2011 → …
Conference number: XIX


ConferencePhysics and Simulation of Optoelectronic Devices
CitySan Francisco , CA, USA
Period01/01/2011 → …


  • high efficiency
  • photonic nanowire
  • electrical pumping
  • single-photon source


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