Cargando…
Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance
Metal nanoparticles supporting plasmons are widely used to enhance electromagnetic fields, resulting in strong light–matter interactions at the nanoscale in a diverse range of applications. Recently, it has been shown that when metal nanorods are periodically arranged with proper lattice periods, su...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876971/ https://www.ncbi.nlm.nih.gov/pubmed/35208063 http://dx.doi.org/10.3390/ma15041523 |
_version_ | 1784658295809638400 |
---|---|
author | Shi, Yunjie Dong, Yuming Sun, Degui Li, Guangyuan |
author_facet | Shi, Yunjie Dong, Yuming Sun, Degui Li, Guangyuan |
author_sort | Shi, Yunjie |
collection | PubMed |
description | Metal nanoparticles supporting plasmons are widely used to enhance electromagnetic fields, resulting in strong light–matter interactions at the nanoscale in a diverse range of applications. Recently, it has been shown that when metal nanorods are periodically arranged with proper lattice periods, surface lattice resonances (SLRs) can be excited and near fields can be greatly enhanced over extended volumes. In this work, we report significant near field enhancement over even larger volumes by placing the metal nanorod array within a Fabry–Pérot (F-P) microcavity. Simulation results show that by taking advantage of strong coupling between the SLR and the photonic F-P resonances, the electric field intensity of the bonding split mode can be enhanced by up to 1935 times, which is about three times of the enhancement of the SLR, and the greatly enhanced field can extend over most of the F-P microcavity. We further show that the F-P resonances of both odd and even orders can strongly couple to the SLR by varying the nanorods position from the middle of the microcavity. We expect that the proposed plasmonic-photonic coupling system will find promising applications in nanolasers, nonlinear optics and sensing. |
format | Online Article Text |
id | pubmed-8876971 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88769712022-02-26 Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance Shi, Yunjie Dong, Yuming Sun, Degui Li, Guangyuan Materials (Basel) Article Metal nanoparticles supporting plasmons are widely used to enhance electromagnetic fields, resulting in strong light–matter interactions at the nanoscale in a diverse range of applications. Recently, it has been shown that when metal nanorods are periodically arranged with proper lattice periods, surface lattice resonances (SLRs) can be excited and near fields can be greatly enhanced over extended volumes. In this work, we report significant near field enhancement over even larger volumes by placing the metal nanorod array within a Fabry–Pérot (F-P) microcavity. Simulation results show that by taking advantage of strong coupling between the SLR and the photonic F-P resonances, the electric field intensity of the bonding split mode can be enhanced by up to 1935 times, which is about three times of the enhancement of the SLR, and the greatly enhanced field can extend over most of the F-P microcavity. We further show that the F-P resonances of both odd and even orders can strongly couple to the SLR by varying the nanorods position from the middle of the microcavity. We expect that the proposed plasmonic-photonic coupling system will find promising applications in nanolasers, nonlinear optics and sensing. MDPI 2022-02-18 /pmc/articles/PMC8876971/ /pubmed/35208063 http://dx.doi.org/10.3390/ma15041523 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 Shi, Yunjie Dong, Yuming Sun, Degui Li, Guangyuan Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title | Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title_full | Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title_fullStr | Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title_full_unstemmed | Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title_short | Significant Near-Field Enhancement over Large Volumes around Metal Nanorods via Strong Coupling of Surface Lattice Resonances and Fabry–Pérot Resonance |
title_sort | significant near-field enhancement over large volumes around metal nanorods via strong coupling of surface lattice resonances and fabry–pérot resonance |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8876971/ https://www.ncbi.nlm.nih.gov/pubmed/35208063 http://dx.doi.org/10.3390/ma15041523 |
work_keys_str_mv | AT shiyunjie significantnearfieldenhancementoverlargevolumesaroundmetalnanorodsviastrongcouplingofsurfacelatticeresonancesandfabryperotresonance AT dongyuming significantnearfieldenhancementoverlargevolumesaroundmetalnanorodsviastrongcouplingofsurfacelatticeresonancesandfabryperotresonance AT sundegui significantnearfieldenhancementoverlargevolumesaroundmetalnanorodsviastrongcouplingofsurfacelatticeresonancesandfabryperotresonance AT liguangyuan significantnearfieldenhancementoverlargevolumesaroundmetalnanorodsviastrongcouplingofsurfacelatticeresonancesandfabryperotresonance |