Work

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

Year: 2008

Type: article

Abstract: We report the observation of a Purcell enhancement in the radiative 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.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/10/4/043035

Authors: David J P Ellis, Anthony J Bennett, Samuel J Dewhurst, Christine A Nicoll, David A Ritchie, Andrew J Shields

Institution: University of Cambridge

Language: English

Topic: Semiconductor Quantum Structures and Devices

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funder: European Commission