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

55 Citations (Scopus)


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
Issue number17
Publication statusPublished - 25 Oct 2010


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