Oxide-apertured microcavity single-photon emitting diode
D. J. P. Ellis, A. J. Bennett, A. J. Shields, P. Atkinson, and D. A., Ritchie
TL;DR
This paper presents a novel oxide-apertured microcavity single-photon diode that enhances emission efficiency and allows electrical injection into a single quantum dot, advancing quantum photonics technology.
Contribution
It introduces a new microcavity design with oxide apertures enabling both optical confinement and electrical injection into a single quantum dot.
Findings
Enhanced radiative decay rate due to optical confinement
Successful electrical injection into a single quantum dot
Demonstration of a single-photon diode with improved performance
Abstract
We have developed a microcavity single-photon source based on a single quantum dot within a planar cavity in which wet-oxidation of a high-aluminium content layer provides lateral confinement of both the photonic mode and the injection current. Lateral confinement of the optical mode in optically pumped structures produces a strong enhancement of the radiative decay rate. Using microcavity structures with doped contact layers, we demonstrate a single-photon emitting diode where current may be injected into a single dot.
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