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Related Experiment Video

Updated: Jun 22, 2026

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

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Published on: July 21, 2018

Cross conversion between surface plasmon polaritons and quasicylindrical waves.

X Y Yang1, H T Liu, P Lalanne

  • 1Laboratoire Charles Fabry de l'Institut d'Optique, CNRS, Univ Paris-Sud, Campus Polytechnique, 91127 Palaiseau cedex, France.

Physical Review Letters
|June 13, 2009
PubMed
Summary
This summary is machine-generated.

This study reveals that converting quasicylindrical waves (CWs) into surface plasmon polaritons (SPPs) is unavoidable in nano-object ensembles. Researchers developed a method to precisely calculate this cross-conversion efficiency for textured metallic surfaces.

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Area of Science:

  • Nanophotonics
  • Surface Physics
  • Computational Electromagnetics

Background:

  • Textured metallic surfaces exhibit unique optical properties.
  • These properties depend on scattering of surface plasmon polaritons (SPPs) and quasicylindrical waves (CWs).
  • Nano-objects on surfaces excite both SPPs and CWs.

Purpose of the Study:

  • Investigate the fundamental scattering process of CW to SPP cross-conversion.
  • Demonstrate the inevitability of this inelastic process in multi-nano-object systems.
  • Develop a rigorous method for calculating cross-conversion scattering coefficients and efficiency.

Main Methods:

  • Theoretical analysis of wave scattering phenomena.
  • Development of a procedure for rigorous calculation of cross-conversion coefficients.
  • Mapping complex scattering to a simplified model.
  • Fully vectorial computational simulations.

Main Results:

  • The cross-conversion of CWs into SPPs is an inevitable process in ensembles of nano-objects.
  • A precise calculation procedure for cross-conversion scattering coefficients is established.
  • General and simplified expressions for cross-conversion efficiency are derived.
  • Computational results validate all theoretical predictions.

Conclusions:

  • The study provides a fundamental understanding of CW-to-SPP conversion in nanophotonics.
  • The developed methods allow for accurate prediction and calculation of scattering efficiencies.
  • This work contributes to the design and understanding of optical properties in textured metallic surfaces.