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

Autor:	Ellis, David J. P., Bennett, Anthony J., Dewhurst, Samuel J., Nicoll, Christine A., Ritchie, David A., Shields, Andrew J.
Rok vydání:	2008
Předmět:	Condensed Matter - Other Condensed Matter Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1088/1367-2630/10/4/043035
Popis:	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. Comment: 11 pages, 4 Figures. To be published in New Journal of Physics
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0804.0663 Zobrazit plný text záznamu View this record from Arxiv