Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System

We investigate the quantum optical properties of strong light-matter interaction between a quantum emitter and a metallic nanoparticle beyond idealized structures with a smooth surface. Based on the local coupling strength and macroscopic Green’s function, we derived an exact quantum optics approach...

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Autores principales: Lu, Yu-Wei, Li, Ling-Yan, Liu, Jing-Feng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940830/
https://www.ncbi.nlm.nih.gov/pubmed/29740123
http://dx.doi.org/10.1038/s41598-018-25584-5
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author Lu, Yu-Wei
Li, Ling-Yan
Liu, Jing-Feng
author_facet Lu, Yu-Wei
Li, Ling-Yan
Liu, Jing-Feng
author_sort Lu, Yu-Wei
collection PubMed
description We investigate the quantum optical properties of strong light-matter interaction between a quantum emitter and a metallic nanoparticle beyond idealized structures with a smooth surface. Based on the local coupling strength and macroscopic Green’s function, we derived an exact quantum optics approach to obtain the field enhancement and light-emission spectrum of a quantum emitter. Numerical simulations show that the surface roughness has a greater effect on the near-field than on the far-field, and slightly increases the vacuum Rabi splitting on average. Further, we verified that the near-field enhancement is mainly determined by the surface features of hot-spot area.
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spelling pubmed-59408302018-05-11 Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System Lu, Yu-Wei Li, Ling-Yan Liu, Jing-Feng Sci Rep Article We investigate the quantum optical properties of strong light-matter interaction between a quantum emitter and a metallic nanoparticle beyond idealized structures with a smooth surface. Based on the local coupling strength and macroscopic Green’s function, we derived an exact quantum optics approach to obtain the field enhancement and light-emission spectrum of a quantum emitter. Numerical simulations show that the surface roughness has a greater effect on the near-field than on the far-field, and slightly increases the vacuum Rabi splitting on average. Further, we verified that the near-field enhancement is mainly determined by the surface features of hot-spot area. Nature Publishing Group UK 2018-05-08 /pmc/articles/PMC5940830/ /pubmed/29740123 http://dx.doi.org/10.1038/s41598-018-25584-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Lu, Yu-Wei
Li, Ling-Yan
Liu, Jing-Feng
Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title_full Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title_fullStr Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title_full_unstemmed Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title_short Influence of Surface Roughness on Strong Light-Matter Interaction of a Quantum Emitter-Metallic Nanoparticle System
title_sort influence of surface roughness on strong light-matter interaction of a quantum emitter-metallic nanoparticle system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5940830/
https://www.ncbi.nlm.nih.gov/pubmed/29740123
http://dx.doi.org/10.1038/s41598-018-25584-5
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AT liujingfeng influenceofsurfaceroughnessonstronglightmatterinteractionofaquantumemittermetallicnanoparticlesystem

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