Cargando…
Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons
Recent years have seen a growing interest in strong coupling between plasmons and excitons, as a way to generate new quantum optical testbeds and influence chemical dynamics and reactivity. Strong coupling to bright plasmonic modes has been achieved even with single quantum emitters. Dark plasmonic...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981195/ https://www.ncbi.nlm.nih.gov/pubmed/31980624 http://dx.doi.org/10.1038/s41467-020-14364-3 |
_version_ | 1783491038073061376 |
---|---|
author | Bitton, Ora Gupta, Satyendra Nath Houben, Lothar Kvapil, Michal Křápek, Vlastimil Šikola, Tomáš Haran, Gilad |
author_facet | Bitton, Ora Gupta, Satyendra Nath Houben, Lothar Kvapil, Michal Křápek, Vlastimil Šikola, Tomáš Haran, Gilad |
author_sort | Bitton, Ora |
collection | PubMed |
description | Recent years have seen a growing interest in strong coupling between plasmons and excitons, as a way to generate new quantum optical testbeds and influence chemical dynamics and reactivity. Strong coupling to bright plasmonic modes has been achieved even with single quantum emitters. Dark plasmonic modes fare better in some applications due to longer lifetimes, but are difficult to probe as they are subradiant. Here, we apply electron energy loss (EEL) spectroscopy to demonstrate that a dark mode of an individual plasmonic bowtie can interact with a small number of quantum emitters, as evidenced by Rabi-split spectra. Coupling strengths of up to 85 meV place the bowtie-emitter devices at the onset of the strong coupling regime. Remarkably, the coupling occurs at the periphery of the bowtie gaps, even while the electron beam probes their center. Our findings pave the way for using EEL spectroscopy to study exciton-plasmon interactions involving non-emissive photonic modes. |
format | Online Article Text |
id | pubmed-6981195 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-69811952020-01-27 Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons Bitton, Ora Gupta, Satyendra Nath Houben, Lothar Kvapil, Michal Křápek, Vlastimil Šikola, Tomáš Haran, Gilad Nat Commun Article Recent years have seen a growing interest in strong coupling between plasmons and excitons, as a way to generate new quantum optical testbeds and influence chemical dynamics and reactivity. Strong coupling to bright plasmonic modes has been achieved even with single quantum emitters. Dark plasmonic modes fare better in some applications due to longer lifetimes, but are difficult to probe as they are subradiant. Here, we apply electron energy loss (EEL) spectroscopy to demonstrate that a dark mode of an individual plasmonic bowtie can interact with a small number of quantum emitters, as evidenced by Rabi-split spectra. Coupling strengths of up to 85 meV place the bowtie-emitter devices at the onset of the strong coupling regime. Remarkably, the coupling occurs at the periphery of the bowtie gaps, even while the electron beam probes their center. Our findings pave the way for using EEL spectroscopy to study exciton-plasmon interactions involving non-emissive photonic modes. Nature Publishing Group UK 2020-01-24 /pmc/articles/PMC6981195/ /pubmed/31980624 http://dx.doi.org/10.1038/s41467-020-14364-3 Text en © The Author(s) 2020 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 Bitton, Ora Gupta, Satyendra Nath Houben, Lothar Kvapil, Michal Křápek, Vlastimil Šikola, Tomáš Haran, Gilad Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title | Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title_full | Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title_fullStr | Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title_full_unstemmed | Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title_short | Vacuum Rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
title_sort | vacuum rabi splitting of a dark plasmonic cavity mode revealed by fast electrons |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6981195/ https://www.ncbi.nlm.nih.gov/pubmed/31980624 http://dx.doi.org/10.1038/s41467-020-14364-3 |
work_keys_str_mv | AT bittonora vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT guptasatyendranath vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT houbenlothar vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT kvapilmichal vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT krapekvlastimil vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT sikolatomas vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons AT harangilad vacuumrabisplittingofadarkplasmoniccavitymoderevealedbyfastelectrons |