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Reduced linewidth multipolar plasmon resonances in metal nanorods and related applications

Zhang, Shunping ; Chen, Li ; Huang, Yingzhou and Xu, Hongxing LU (2013) In Nanoscale 5(15). p.6985-6991
Abstract
Using dark-field scattering spectroscopy, we study the multipolar plasmon resonances in single crystallized silver nanorods. The lineshapes and homogenous linewidths of the surface plasmon resonances (SPRs) of different orders are analyzed and compared. The high-order resonances are found to sustain asymmetric Fano lineshapes and their linewidths are narrower than the dipolar resonance. A quantitative comparison using the finite element method reveals more than a three times reduction in the linewidth for the third order resonance, as compared with the dipolar one. These narrow linewidths result from the smaller radiative damping of the multipolar SPRs. Benefiting from the reduced damping, multipolar SPRs in nanorods are better candidates... (More)
Using dark-field scattering spectroscopy, we study the multipolar plasmon resonances in single crystallized silver nanorods. The lineshapes and homogenous linewidths of the surface plasmon resonances (SPRs) of different orders are analyzed and compared. The high-order resonances are found to sustain asymmetric Fano lineshapes and their linewidths are narrower than the dipolar resonance. A quantitative comparison using the finite element method reveals more than a three times reduction in the linewidth for the third order resonance, as compared with the dipolar one. These narrow linewidths result from the smaller radiative damping of the multipolar SPRs. Benefiting from the reduced damping, multipolar SPRs in nanorods are better candidates for many plasmonic applications, including increased-sensitivity single particle SPR sensors and reduced-threshold nanolasers. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanoscale
volume
5
issue
15
pages
6985 - 6991
publisher
Royal Society of Chemistry
external identifiers
  • wos:000321675600045
  • scopus:84887124200
  • pmid:23800794
ISSN
2040-3372
DOI
10.1039/c3nr01219k
language
English
LU publication?
yes
id
127b7d51-9f0b-4c5a-97bc-585b79b29465 (old id 3979369)
date added to LUP
2016-04-01 10:13:47
date last changed
2022-02-17 07:59:24
@article{127b7d51-9f0b-4c5a-97bc-585b79b29465,
  abstract     = {{Using dark-field scattering spectroscopy, we study the multipolar plasmon resonances in single crystallized silver nanorods. The lineshapes and homogenous linewidths of the surface plasmon resonances (SPRs) of different orders are analyzed and compared. The high-order resonances are found to sustain asymmetric Fano lineshapes and their linewidths are narrower than the dipolar resonance. A quantitative comparison using the finite element method reveals more than a three times reduction in the linewidth for the third order resonance, as compared with the dipolar one. These narrow linewidths result from the smaller radiative damping of the multipolar SPRs. Benefiting from the reduced damping, multipolar SPRs in nanorods are better candidates for many plasmonic applications, including increased-sensitivity single particle SPR sensors and reduced-threshold nanolasers.}},
  author       = {{Zhang, Shunping and Chen, Li and Huang, Yingzhou and Xu, Hongxing}},
  issn         = {{2040-3372}},
  language     = {{eng}},
  number       = {{15}},
  pages        = {{6985--6991}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Nanoscale}},
  title        = {{Reduced linewidth multipolar plasmon resonances in metal nanorods and related applications}},
  url          = {{http://dx.doi.org/10.1039/c3nr01219k}},
  doi          = {{10.1039/c3nr01219k}},
  volume       = {{5}},
  year         = {{2013}},
}