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Related Experiment Video

Updated: Jun 23, 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

Direct mapping of the UV surface plasmons.

Qiaoqiang Gan1, Liangcheng Zhou, Volkmar Dierolf

  • 1Center for Optical Technologies, Lehigh University, Bethlehem, Pennsylvania 18015, USA.

Optics Letters
|May 5, 2009
PubMed
Summary

Researchers mapped ultraviolet surface plasmon polaritons (SPPs) on an aluminum oxide/aluminum surface. This work advances understanding of subwavelength optics on a chip, enabling novel plasmonic device designs.

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Area of Science:

  • Plasmonics
  • Optics
  • Materials Science

Background:

  • Conventional optics principles are applied to design plasmonic devices.
  • A framework is needed to describe surface plasmon polariton (SPP) propagation, diffraction, and interference on a chip.
  • Direct mapping of ultraviolet (UV) SPPs is crucial for advancing subwavelength optics.

Purpose of the Study:

  • To present the first direct mapping of UV SPPs on an Al2O3/Al surface.
  • To observe UV SPP modes launched by various structures and their interference.
  • To contribute to the understanding of subwavelength optics on a chip.

Main Methods:

  • Utilizing a UV-compatible near-field scanning optical microscope system.
  • Designing and fabricating Al2O3/Al surfaces with specific structures (1D slits, 2D groove arrays).

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Last Updated: Jun 23, 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
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  • Launching and imaging UV SPP modes and their interference patterns.

    • Main Results:

    • Successfully mapped UV SPPs on an Al2O3/Al surface.
    • Observed UV SPP modes launched by both one-dimensional slits and two-dimensional groove arrays.
    • Detected interference phenomena associated with the launched UV SPP modes.

    Conclusions:

    • The study provides the first direct visualization of UV SPPs on an Al2O3/Al interface.
    • Observed phenomena enrich the field of subwavelength optics on a chip.
    • The findings support the development of novel plasmonic devices based on UV SPPs.