Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81236
PIRA download icon_1.1View/Download Full Text
Title: Enhancement of single-photon emission rate from InGaAs/GaAs quantum-dot/nanowire heterostructure by wire-groove nanocavity
Authors: Wei, W 
Yan, X
Liu, J
Shen, B
Luo, W
Ma, X
Zhang, X
Issue Date: 2019
Source: Nanomaterials, 2019, v. 9, no. 5, 671
Abstract: Spontaneous emission of luminescent material is strongly dependent on the surrounding electromagnetic environment. To enhance the emission rate of a single-photon emitter, we proposed a wire-groove resonant nanocavity around the single-photon emitter. An InGaAs quantum dot embedded in a GaAs nanowire was employed as a site-control single-photon emitter. The nanoscale cavity built by a wire-groove perpendicular to the quantum dot with an extremely narrow width of 10 nm exhibited an extremely small volume of 10 × 40 × 259 nm3. Theoretical analysis showed that the emission rate of the quantum dot was dramatically enhanced by 617x due to the Purcell effect induced by the wire-groove cavity. A fast single-photon emitter with a rate of 50.2 GHz can be obtained that speeds up the data rate of the single-photon emitter. This ultrafast single-photon source would be of great significance in quantum information systems and networks.
Keywords: Cavity quantum electrodynamics
Nanowire
Quantum dot
Single photon
Publisher: Molecular Diversity Preservation International (MDPI)
Journal: Nanomaterials 
ISSN: 2079-4991
DOI: 10.3390/nano9050671
Rights: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The following publication Wei W, Yan X, Liu J, Shen B, Luo W, Ma X, Zhang X. Enhancement of Single-Photon Emission Rate from InGaAs/GaAs Quantum-Dot/Nanowire Heterostructure by Wire-Groove Nanocavity. Nanomaterials. 2019; 9(5):671 is available at https://doi.org/10.3390/nano9050671
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
Wei_Enhancement_single-photon_emission.pdf1.38 MBAdobe PDFView/Open
Open Access Information
Status open access
File Version Version of Record
Access
View full-text via PolyU eLinks SFX Query
Show full item record

Page views

157
Last Week
0
Last month
Citations as of Apr 13, 2025

Downloads

115
Citations as of Apr 13, 2025

SCOPUSTM   
Citations

9
Citations as of May 8, 2025

WEB OF SCIENCETM
Citations

10
Citations as of May 8, 2025

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.