Next Article in Journal
Preparation of a Novel SERS Platform Based on Mantis Wing with High-Density and Multi-Level “Hot Spots”
Next Article in Special Issue
Linearly Tunable Fano Resonance Modes in a Plasmonic Nanostructure with a Waveguide Loaded with Two Rectangular Cavities Coupled by a Circular Cavity
Previous Article in Journal
Yttrium Residues in MWCNT Enable Assessment of MWCNT Removal during Wastewater Treatment
Previous Article in Special Issue
Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle

Enhancement of Single-Photon Emission Rate from InGaAs/GaAs Quantum-Dot/Nanowire Heterostructure by Wire-Groove Nanocavity

1
School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, China
2
Photonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
3
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
4
4catalyzer Inc., Guilford, CT 06437, USA
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(5), 671; https://doi.org/10.3390/nano9050671
Received: 19 February 2019 / Revised: 16 April 2019 / Accepted: 22 April 2019 / Published: 1 May 2019
(This article belongs to the Special Issue Advances in Photonic and Plasmonic Nanomaterials)
  |  
PDF [2090 KB, uploaded 1 May 2019]
  |  

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. View Full-Text
Keywords: quantum dot; nanowire; single photon; cavity quantum electrodynamics quantum dot; nanowire; single photon; cavity quantum electrodynamics
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

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, 671.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top