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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
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Coupling Mediated Coherent Control of Localized Surface Plasmon Polaritons
Franziska Zeuner1, Mulda Muldarisnur1, Andre Hildebrandt1
1†Department of Physics and ‡Department of Electrical Engineering, University of Paderborn, Warburger Strasse 100, D-33098 Paderborn, Germany.
Nano Letters
|May 16, 2015
Summary
We demonstrate coherent control over plasmon excitation in coupled nanorods using phase-controlled light. Damping effects were found to influence the observed phase relations in these nanorod structures.
Area of Science:
- Nanophotonics
- Plasmonics
- Nonlinear Spectroscopy
Background:
- Localized surface plasmon polaritons (LSPPs) are crucial for nanoscale light manipulation.
- Coupled nanostructures offer unique plasmonic properties and enhanced light-matter interactions.
Purpose of the Study:
- To investigate the phase-dependent excitation of LSPPs in a coupled three-nanorod system.
- To demonstrate coherent control over plasmon excitation via optical phase manipulation.
Main Methods:
- Utilized nonlinear spectroscopy to probe plasmon excitation.
- Employed a coupled three-nanorod design for independent excitation.
- Used cross-polarized and orthogonally polarized light fields to control excitation.
Main Results:
- Achieved coherent control of a specific plasmon mode by adjusting the relative phase of excitation fields.
- Observed a distinct phase relation governing the excitation process.
- Identified damping effects as the dominant factor influencing the observed phase relation.
Conclusions:
- Phase control offers a powerful mechanism for manipulating plasmon excitation in nanostructures.
- Understanding damping effects is critical for precise control of plasmonic phenomena.
- This work paves the way for advanced applications in nanoscale optics and sensing.
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