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Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere
The spontaneous emission of a fluorophore is altered by the surrounding electromagnetic field. Therefore, the radiation of the fluorophore can be engineered by inter-coupling with the nanoscale plasmons. This work proposes a nanoscale hemisphere structure that enhances the electric field and further...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9459785/ https://www.ncbi.nlm.nih.gov/pubmed/36080107 http://dx.doi.org/10.3390/nano12173070 |
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author | Lv, Jiangtao Chang, Minghui Gu, Qiongchan Ying, Yu Si, Guangyuan |
author_facet | Lv, Jiangtao Chang, Minghui Gu, Qiongchan Ying, Yu Si, Guangyuan |
author_sort | Lv, Jiangtao |
collection | PubMed |
description | The spontaneous emission of a fluorophore is altered by the surrounding electromagnetic field. Therefore, the radiation of the fluorophore can be engineered by inter-coupling with the nanoscale plasmons. This work proposes a nanoscale hemisphere structure that enhances the electric field and further modulates its effects on fluorophores by adjusting the radius of the hemisphere. A full-wave simulation is carried out using the finite element method, and the radiation characteristics of the nanoscale hemisphere are studied in detail. Compared with free space, the structure has generated significant enhancement exceeding 30. Through curve fitting, the relationship between the enhanced peak wavelength and the radius of the hemisphere is obtained. |
format | Online Article Text |
id | pubmed-9459785 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94597852022-09-10 Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere Lv, Jiangtao Chang, Minghui Gu, Qiongchan Ying, Yu Si, Guangyuan Nanomaterials (Basel) Article The spontaneous emission of a fluorophore is altered by the surrounding electromagnetic field. Therefore, the radiation of the fluorophore can be engineered by inter-coupling with the nanoscale plasmons. This work proposes a nanoscale hemisphere structure that enhances the electric field and further modulates its effects on fluorophores by adjusting the radius of the hemisphere. A full-wave simulation is carried out using the finite element method, and the radiation characteristics of the nanoscale hemisphere are studied in detail. Compared with free space, the structure has generated significant enhancement exceeding 30. Through curve fitting, the relationship between the enhanced peak wavelength and the radius of the hemisphere is obtained. MDPI 2022-09-03 /pmc/articles/PMC9459785/ /pubmed/36080107 http://dx.doi.org/10.3390/nano12173070 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Lv, Jiangtao Chang, Minghui Gu, Qiongchan Ying, Yu Si, Guangyuan Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title | Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title_full | Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title_fullStr | Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title_full_unstemmed | Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title_short | Plasmon-Enhanced Fluorescence Emission of an Electric Dipole Modulated by a Nanoscale Silver Hemisphere |
title_sort | plasmon-enhanced fluorescence emission of an electric dipole modulated by a nanoscale silver hemisphere |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9459785/ https://www.ncbi.nlm.nih.gov/pubmed/36080107 http://dx.doi.org/10.3390/nano12173070 |
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