Position controlled nanowires for infrared single photon emission

Dorenbos, S.N. et al. (2010) Position controlled nanowires for infrared single photon emission. Applied Physics Letters, 97(17), p. 171106. (doi: 10.1063/1.3506499)

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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.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Hadfield, Professor Robert
Authors: Dorenbos, S.N., Sasakura, H., van Kouwen, M.P., Akopian, N., Adachi, S., Namekata, N., Jo, M., Motohisa, J., Kobayashi, Y., Tomioka, K., Fukui, T., Inoue, S., Kumano, H., Natarajan, C.M., Hadfield, R.H., Zijlstra, T., Klapwijk, T.M., Zwiller, V., and Suemune, I.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Published Online:28 October 2010

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