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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
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Guided plasmonic modes in nanorod assemblies: strong electromagnetic coupling regime.

G A Wurtz1, W Dickson, D O'Connor

  • 1Centre for Nanostructured Media, IRCEP, The Queen's University of Belfast, Belfast, BT7 1NN, United Kingdom. g.wurtz@unf.edu

Optics Express
|June 12, 2008
PubMed
Summary

Coupling metallic nanorods creates guided plasmonic modes, concentrating fields between rods for nanoscale light manipulation. This collective mode

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Area of Science:

  • Plasmonics and Nanophotonics
  • Materials Science

Background:

  • Metallic nanorod arrays exhibit unique optical properties due to plasmonic resonances.
  • Understanding the collective behavior of plasmonic modes is crucial for nanoscale optical applications.

Purpose of the Study:

  • To investigate the coupling between plasmonic modes in oriented metallic nanorods.
  • To characterize the electromagnetic field distribution and propagation of collective plasmonic modes in nanorod arrays.
  • To explore the potential of these collective modes for light guiding and sensing applications.

Main Methods:

  • Fabrication of oriented metallic nanorod arrays.
  • Optical characterization techniques to study plasmonic mode coupling.
  • Electromagnetic field simulations to analyze mode distribution and propagation.

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Last Updated: Jul 4, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
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Published on: December 11, 2013

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Main Results:

  • Demonstrated the formation of an extended (guided) plasmonic mode in nanorod arrays due to inter-rod coupling.
  • Observed electromagnetic field concentration between nanorods, propagating perpendicular to their long axes.
  • Showcased tunability of the collective plasmonic mode across a wide spectral range by altering array geometry.

Conclusions:

  • The collective plasmonic mode dictates the optical properties of nanorod assemblies.
  • Nanorod array geometry offers a tunable platform for nanoscale light guiding and manipulation.
  • Potential applications include advanced sensing and the development of molecular plasmonic devices.