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Microcavity single-photon-emitting diode

Bennett, Anthony, Unitt, D. C., See, P., Shields, A. J., Atkinson, P., Cooper, K. and Ritchie, D. A. 2005. Microcavity single-photon-emitting diode. Applied Physics Letters 86 (18) , 181102. 10.1063/1.1921332

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We show that a planar semiconductor cavity can be used to enhance by a factor of ten the efficiency with which photons are collected from an electrically driven single In As ∕ Ga As quantum dot. Under a fixed bias we observe that the photon statistics change when the injection current is modified. The observed bunching of photons from the biexciton state can be explained by the presence of charged states or dark states within the quantum dot with lifetimes greater than 4 ns. Single-photon emission from both the exciton and biexciton states is demonstrated under pulsed electrical injection.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: American Institute of Physics
ISSN: 0003-6951
Date of Acceptance: 4 April 2005
Last Modified: 27 Nov 2017 16:48

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