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Related Experiment Video

Updated: Jul 15, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Long-range surface plasmons on ultrathin membranes.

Pierre Berini1, Robert Charbonneau, Nancy Lahoud

  • 1Spectalis Corp., 610 Bronson Avenue, Ottawa, Ontario K1S 4E6, Canada. berini@site.uottawa.ca

Nano Letters
|April 14, 2007
PubMed
Summary

A novel waveguide design enables long-range surface plasmon waves in liquids and gases. This breakthrough enhances surface sensitivity for highly effective (bio)chemical sensors.

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Area of Science:

  • Plasmonics and Photonics
  • Material Science
  • Surface Chemistry

Background:

  • Surface plasmon waves are crucial for sensing applications.
  • Existing structures often require specific environments, limiting their versatility.
  • Achieving high surface sensitivity and long interaction lengths is key for advanced sensors.

Purpose of the Study:

  • To describe a new waveguide structure for supporting long-range surface plasmon waves.
  • To demonstrate enhanced surface sensitivity for (bio)chemical sensing.
  • To explore applications in plasmonics, photonics, and material science.

Main Methods:

  • Fabrication of a nanometric dielectric membrane with deposited metal stripes.
  • Theoretical modeling of wave propagation and surface sensitivity.
  • Experimental validation of long-range surface plasmon propagation in gaseous and liquid media.

Main Results:

  • The waveguide structure supports long-range surface plasmon waves in diverse environments.
  • The dielectric membrane significantly increases the surface sensitivity of the plasmon waves.
  • Demonstrated propagation of surface plasmons in both air and liquid.
  • Achieved high sensitivity for (bio)chemical sensing due to combined effects.

Conclusions:

  • The developed waveguide structure offers a versatile platform for plasmonic devices.
  • This technology enables highly sensitive (bio)chemical sensors with broad applicability.
  • Opens new avenues for research in plasmonics, photonics, and interface science.

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Last Updated: Jul 15, 2026

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