Position controlled nanowires for infrared single photon emission

  • S. N. Dorenbos
  • , H. Sasakura
  • , M. P. Van Kouwen
  • , N. Akopian
  • , S. Adachi
  • , N. Namekata
  • , M. Jo
  • , J. Motohisa
  • , Y. Kobayashi
  • , K. Tomioka
  • , T. Fukui
  • , S. Inoue
  • , H. Kumano
  • , C. M. Natarajan
  • , R. H. Hadfield
  • , T. Zijlstra
  • , T. M. Klapwijk
  • , V. Zwiller
  • , I. Suemune

Research output: Contribution to journalArticlepeer-review

Abstract

We report the experimental demonstration of single-photon and cascaded photon pair emission in the infrared, originating from a single InAsP quantum dot embedded in a standing InP nanowire. A regular array of nanowires is fabricated by epitaxial growth on an electron-beam patterned substrate. Photoluminescence spectra taken on single quantum dots show narrow emission lines. Superconducting single photon detectors, which have a higher sensitivity than avalanche photodiodes in the infrared, enable us to measure auto and cross correlations. Clear antibunching is observed [g (2) (0) =0.12] and we show a biexciton-exciton cascade, which can be used to create entangled photon pairs. © 2010 American Institute of Physics.

Original languageEnglish
Article number171106
JournalApplied Physics Letters
Volume97
Issue number17
DOIs
Publication statusPublished - 25 Oct 2010

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