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research article

Long-Distance Indirect Excitation of Nanoplasmonic Resonances

Khunsin, Worawut
•
Brian, Bjorn
•
Dorfmueller, Jens
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2011
Nano Letters

In nanoscopic systems, size, geometry, and arrangement are the crucial determinants of the light-matter interaction and resulting nanoparticles excitation. At optical frequencies, one of the most prominent examples is the excitation of localized surface plasmon polaritons, where the electromagnetic radiation is coupled to the confined charge density oscillations. Here, we show that beyond direct near- and far-field excitation, a long-range, indirect mode of particle excitation is available in nanoplasmonic systems. In particular, in amorphous arrays of plasmonic nanodiscs we find strong collective and coherent influence on each particle from its entire active neighborhood. This dependency of the local field response on excitation conditions at distant areas brings exciting possibilities to engineer enhanced electromagnetic fields through controlled, spatially configured illumination.

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Type
research article
DOI
10.1021/nl201043v
Web of Science ID

WOS:000292849400034

Author(s)
Khunsin, Worawut
Brian, Bjorn
Dorfmueller, Jens
Esslinger, Moritz
Vogelgesang, Ralf
Etrich, Christoph
Rockstuhl, Carsten
Dmitriev, Alexandre
Kern, Klaus  
Date Issued

2011

Publisher

American Chemical Society (ACS)

Published in
Nano Letters
Volume

11

Start page

2765

End page

2769

Subjects

Amorphous plasmonics

•

near-field optics

•

plasmonic localization

•

near-field coupling

•

neighbor interaction

•

hot spot

•

Enhanced Raman-Scattering

•

Plasmon Resonances

•

Gold Nanoparticles

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Metal Nanoparticles

•

Optical-Properties

•

Silver Particles

•

Nanostructures

•

Pairs

•

Size

•

Shape

Editorial or Peer reviewed

REVIEWED

Written at

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Available on Infoscience
December 16, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/73806
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