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Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting

Various plasmonic nanocavities possessing an extremely small mode volume have been developed and applied successfully in the study of strong light-matter coupling. Driven by the desire of constructing quantum networks and other functional quantum devices, a growing trend of strong coupling research...

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Autores principales: Song, Tingting, Chen, Zhanxu, Zhang, Wenbo, Lin, Limin, Bao, Yanjun, Wu, Lin, Zhou, Zhang-Kai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523316/
https://www.ncbi.nlm.nih.gov/pubmed/30959968
http://dx.doi.org/10.3390/nano9040564
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author Song, Tingting
Chen, Zhanxu
Zhang, Wenbo
Lin, Limin
Bao, Yanjun
Wu, Lin
Zhou, Zhang-Kai
author_facet Song, Tingting
Chen, Zhanxu
Zhang, Wenbo
Lin, Limin
Bao, Yanjun
Wu, Lin
Zhou, Zhang-Kai
author_sort Song, Tingting
collection PubMed
description Various plasmonic nanocavities possessing an extremely small mode volume have been developed and applied successfully in the study of strong light-matter coupling. Driven by the desire of constructing quantum networks and other functional quantum devices, a growing trend of strong coupling research is to explore the possibility of fabricating simple strong coupling nanosystems as the building blocks to construct complex systems or devices. Herein, we investigate such a nanocube-exciton building block (i.e. AuNC@J-agg), which is fabricated by coating Au nanocubes with excitonic J-aggregate molecules. The extinction spectra of AuNC@J-agg assembly, as well as the dark field scattering spectra of the individual nanocube-exciton, exhibit Rabi splitting of 100–140 meV, which signifies strong plasmon–exciton coupling. We further demonstrate the feasibility of constructing a more complex system of AuNC@J-agg on Au film, which achieves a much stronger coupling, with Rabi splitting of 377 meV. This work provides a practical pathway of building complex systems from building blocks, which are simple strong coupling systems, which lays the foundation for exploring further fundamental studies or inventing novel quantum devices.
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spelling pubmed-65233162019-06-03 Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting Song, Tingting Chen, Zhanxu Zhang, Wenbo Lin, Limin Bao, Yanjun Wu, Lin Zhou, Zhang-Kai Nanomaterials (Basel) Article Various plasmonic nanocavities possessing an extremely small mode volume have been developed and applied successfully in the study of strong light-matter coupling. Driven by the desire of constructing quantum networks and other functional quantum devices, a growing trend of strong coupling research is to explore the possibility of fabricating simple strong coupling nanosystems as the building blocks to construct complex systems or devices. Herein, we investigate such a nanocube-exciton building block (i.e. AuNC@J-agg), which is fabricated by coating Au nanocubes with excitonic J-aggregate molecules. The extinction spectra of AuNC@J-agg assembly, as well as the dark field scattering spectra of the individual nanocube-exciton, exhibit Rabi splitting of 100–140 meV, which signifies strong plasmon–exciton coupling. We further demonstrate the feasibility of constructing a more complex system of AuNC@J-agg on Au film, which achieves a much stronger coupling, with Rabi splitting of 377 meV. This work provides a practical pathway of building complex systems from building blocks, which are simple strong coupling systems, which lays the foundation for exploring further fundamental studies or inventing novel quantum devices. MDPI 2019-04-07 /pmc/articles/PMC6523316/ /pubmed/30959968 http://dx.doi.org/10.3390/nano9040564 Text en © 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/).
spellingShingle Article
Song, Tingting
Chen, Zhanxu
Zhang, Wenbo
Lin, Limin
Bao, Yanjun
Wu, Lin
Zhou, Zhang-Kai
Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title_full Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title_fullStr Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title_full_unstemmed Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title_short Compounding Plasmon–Exciton Strong Coupling System with Gold Nanofilm to Boost Rabi Splitting
title_sort compounding plasmon–exciton strong coupling system with gold nanofilm to boost rabi splitting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523316/
https://www.ncbi.nlm.nih.gov/pubmed/30959968
http://dx.doi.org/10.3390/nano9040564
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