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Updated: May 26, 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

Gap surface plasmon waveguides with enhanced integration and functionality.

Dmitri K Gramotnev1, Michael G Nielsen, Shiaw Juen Tan

  • 1Nanophotonics, GPO Box 786, Albany Creek, Queensland 4035, Australia. d.gramotnev@nanophotonics.com.au

Nano Letters
|December 29, 2011
PubMed
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We introduce L-shaped gap surface plasmon waveguides (L-GSPWs) for efficient light manipulation. These waveguides offer strong light confinement, long propagation distances, and low crosstalk, ideal for integrated photonic circuits.

Area of Science:

  • Photonics
  • Plasmonics
  • Nanotechnology

Background:

  • Surface plasmon polaritons (SPPs) enable subwavelength light confinement.
  • Existing plasmonic waveguides face challenges in propagation distance and crosstalk.

Purpose of the Study:

  • To propose and investigate novel L-shaped gap surface plasmon waveguides (L-GSPWs).
  • To evaluate the performance of L-GSPWs for integrated optics applications.

Main Methods:

  • Theoretical analysis of L-GSPW electromagnetic properties.
  • Experimental fabrication using standard lithography and thin film deposition.
  • Characterization of propagation distance, localization, and transmission.

Main Results:

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  • Demonstrated strong plasmon localization within the nanogap.
  • Achieved significant propagation distances and low crosstalk between adjacent waveguides.
  • Showcased high transmission efficiency through sharp 90° bends.

    • Conclusions:

    • L-GSPWs offer a promising platform for compact and efficient plasmonic circuits.
    • The proposed design combines key performance metrics with fabrication simplicity.
    • L-GSPWs are suitable for advanced integrated photonic devices.