On-demand single-photons from electrically-injected site-controlled pyramidal quantum dots. (21st November 2018)

• Record Type: Journal Article
• Authors: Moroni, S T; Chung, T H; Juska, G; Gocalinska, A; Pelucchi, E
• Is Part Of: Journal of physics. Volume 52:Number 4(2019)
• Publication Date: 2018-11-21
• Subjects: quantum dot -- MOVPE -- single-photon -- electrical injection -- site control; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/aaed73
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: We report on the performance of electrically-injected pyramidal quantum dots (PQDs) in terms of single-photon emission. We previously presented the generation of entangled photon pairs from similarly structured devices. Here we show that it is also possible to obtain single-photons upon continuous wave excitation as well as pulsed excitation, obtaining a low g 2 (0) of 0.088 ± 0.059, by discarding re-excitation events within a single excitation pulse by applying time-gating techniques.