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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Surface plasmon mode steering and negative refraction.

Benedikt Stein1, Jean-Yves Laluet, Eloïse Devaux

  • 1ISIS, Université de Strasbourg and CNRS, Strasbourg, France.

Physical Review Letters
|January 15, 2011
PubMed
Summary
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Surface plasmon beams steered by metallic gratings show negative refraction. This effect enhances the sensitivity of plasmonic sensors, offering new possibilities for device development.

Area of Science:

  • Optics and Photonics
  • Condensed Matter Physics
  • Materials Science

Background:

  • Surface plasmon polaritons (SPPs) are electromagnetic waves confined to the surface of a conductor.
  • Periodic metallic gratings offer a platform to control SPP propagation and manipulate light-matter interactions.
  • Understanding SPP behavior in gratings is crucial for developing advanced optical devices.

Purpose of the Study:

  • To analyze the propagation of surface plasmon beams in singly and doubly periodic metallic gratings.
  • To experimentally investigate beam steering effects and isofrequency surfaces (IFS).
  • To explore the potential of these structures for enhancing plasmonic sensor sensitivity.

Main Methods:

  • Analysis of surface plasmon beam propagation in real and Fourier spaces.

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Related Experiment Videos

Last Updated: Jun 5, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
09:00

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
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Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

  • Experimental probing of isofrequency surfaces (IFS) for plasmonic Bloch waves.
  • Investigation of negative refraction phenomena near the Bragg condition.

    • Main Results:

    • Demonstration of large beam steering effects in metallic gratings.
    • Observation of negative refraction of surface plasmon beams.
    • Correlation between the local structure of IFS and enhanced sensor sensitivity.

    Conclusions:

    • Periodic metallic gratings enable significant control over surface plasmon beam propagation.
    • Negative refraction effects are achievable and can be tuned.
    • The findings provide a pathway for designing highly sensitive surface plasmon-based sensors.