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Updated: May 21, 2026
07:39
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Surface plasmon-coupled emission on plasmonic Bragg gratings.
Mana Toma1, Koji Toma, Pavel Adam
1AIT - Austrian Institute of Technology GmbH, Muthgasse 11, 1190 Vienna, Austria.
Optics Express
|June 21, 2012
Summary
Researchers investigated surface plasmon-coupled emission (SPCE) using plasmonic Bragg gratings. Tuning the grating
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Surface plasmon-coupled emission (SPCE) enables directional light emission.
- Plasmonic Bragg gratings offer control over light-matter interactions.
Purpose of the Study:
- To investigate SPCE from emitters near plasmonic Bragg gratings.
- To explore control over emission directionality via plasmonic modes.
Main Methods:
- Utilizing the reverse Kretschmann configuration.
- Employing dense sub-wavelength metallic gratings.
- Tuning refractive indices at grating interfaces.
Main Results:
- Observed directional fluorescence emission mediated by Bragg-scattered and diffracted surface plasmons.
- Demonstrated selective control over light emission intensity in specific directions.
- Showcased the influence of dispersion relation tuning on emission patterns.
Conclusions:
- Controlling surface plasmon dispersion relations in metallic gratings allows tailored light emission.
- Findings offer pathways for designing advanced plasmonic structures.
- Potential applications in plasmon-enhanced spectroscopy and nanoscale optical sources.
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