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arXiv · 0804.0663

Cavity-enhanced radiative emission rate in a single-photon-emitting diode operating at 0.5 GHz

David J. P. Ellis·Anthony J. Bennett·Samuel J. Dewhurst·Christine A. Nicoll·David A. Ritchie·Andrew J. Shields
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Abstract

We report the observation of a Purcell enhancement in the electroluminescence decay rate of a single quantum dot, embedded in a microcavity light-emitting-diode structure. Lateral confinement of the optical mode was achieved using an annulus of low-refractive-index aluminium oxide, formed by wet oxidation. The same layer acts as a current aperture, reducing the active area of the device without impeding the electrical properties of the p-i-n diode. This allowed single photon electroluminescence to be demonstrated at repetition rates up to 0.5 GHz.

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David J. P. Ellis, Anthony J. Bennett, Samuel J. Dewhurst, Christine A. Nicoll, David A. Ritchie, Andrew J. Shields. 2008-04-04. Cavity-enhanced radiative emission rate in a single-photon-emitting diode operating at 0.5 GHz. https://doi.org/10.1088/1367-2630%2F10%2F4%2F043035

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