Highly tunable propagating surface plasmons on supported silver nanowires
(2013) In Proceedings of the National Academy of Sciences 110(12). p.4494-4499- Abstract
- Surface plasmons, the quanta of the collective oscillations of free electrons at metal surface, can be easily tuned by changing the surrounding dielectric materials, which is well known for metal nanoparticles and metal surfaces, but less is known for one-dimensional metal nanowires. Here, we find an extremely large tunability of surface plasmons on Ag nanowires with a beat period of the near-field distribution pattern increasing by 90 nm per nanometer of Al2O3 coating, or by 16 mu m per refractive index unit change in the surrounding medium. Such high sensitivity is crucial to directly control the optical signal distribution for various routing and demultiplexing functions in plasmonic circuits and may pave the way to the development of... (More)
- Surface plasmons, the quanta of the collective oscillations of free electrons at metal surface, can be easily tuned by changing the surrounding dielectric materials, which is well known for metal nanoparticles and metal surfaces, but less is known for one-dimensional metal nanowires. Here, we find an extremely large tunability of surface plasmons on Ag nanowires with a beat period of the near-field distribution pattern increasing by 90 nm per nanometer of Al2O3 coating, or by 16 mu m per refractive index unit change in the surrounding medium. Such high sensitivity is crucial to directly control the optical signal distribution for various routing and demultiplexing functions in plasmonic circuits and may pave the way to the development of on-chip ultrasensitive biosensing. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3739231
- author
- Wei, Hong ; Zhang, Shunping ; Tian, Xiaorui and Xu, Hongxing LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- plasmonics, imaging, sensing, quantum dot, modulation
- in
- Proceedings of the National Academy of Sciences
- volume
- 110
- issue
- 12
- pages
- 4494 - 4499
- publisher
- National Academy of Sciences
- external identifiers
-
- wos:000317521600028
- scopus:84875235720
- pmid:23487763
- ISSN
- 1091-6490
- DOI
- 10.1073/pnas.1217931110
- language
- English
- LU publication?
- yes
- id
- 19813e41-647f-4484-a136-4f355659e37f (old id 3739231)
- date added to LUP
- 2016-04-01 09:54:35
- date last changed
- 2022-04-12 00:01:56
@article{19813e41-647f-4484-a136-4f355659e37f,
abstract = {{Surface plasmons, the quanta of the collective oscillations of free electrons at metal surface, can be easily tuned by changing the surrounding dielectric materials, which is well known for metal nanoparticles and metal surfaces, but less is known for one-dimensional metal nanowires. Here, we find an extremely large tunability of surface plasmons on Ag nanowires with a beat period of the near-field distribution pattern increasing by 90 nm per nanometer of Al2O3 coating, or by 16 mu m per refractive index unit change in the surrounding medium. Such high sensitivity is crucial to directly control the optical signal distribution for various routing and demultiplexing functions in plasmonic circuits and may pave the way to the development of on-chip ultrasensitive biosensing.}},
author = {{Wei, Hong and Zhang, Shunping and Tian, Xiaorui and Xu, Hongxing}},
issn = {{1091-6490}},
keywords = {{plasmonics; imaging; sensing; quantum dot; modulation}},
language = {{eng}},
number = {{12}},
pages = {{4494--4499}},
publisher = {{National Academy of Sciences}},
series = {{Proceedings of the National Academy of Sciences}},
title = {{Highly tunable propagating surface plasmons on supported silver nanowires}},
url = {{http://dx.doi.org/10.1073/pnas.1217931110}},
doi = {{10.1073/pnas.1217931110}},
volume = {{110}},
year = {{2013}},
}