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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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Plasmons in Finite Spherical Electrolyte Systems: RPA Effective Jellium Model for Ionic Plasma Excitations
1Department of Quantum Technology, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland.
Plasmonics (Norwell, Mass.)
|April 13, 2016
Summary
Soft plasmonics in confined ionic systems exhibit tunable resonances analogous to metallic nanoparticles. This study describes their behavior, size-dependent damping, and potential for light manipulation in electrolyte systems.
Area of Science:
- Physics
- Materials Science
- Chemistry
Background:
- Plasmons are collective excitations in charged systems, crucial in metals and nanoparticles for light manipulation.
- Existing research focuses on electron-based plasmons in metals and nanoparticles.
- Soft plasmonics in ionic systems remains less explored, particularly in confined geometries.
Purpose of the Study:
- To develop a theoretical model for soft plasmonics in finite electrolyte systems confined by membranes.
- To describe surface and volume plasmons in these confined ionic systems.
- To investigate the size-effect on surface plasmon attenuation and resonance tuning.
Main Methods:
- Formulation of a novel theoretical model for plasmon-type excitations in confined ionic systems.
- Analysis of surface and volume plasmon behavior within micrometer-scale electrolyte confinement.
- Investigation of size-dependent damping mechanisms, including ion scattering and energy losses.
Main Results:
- Demonstration of plasmon resonances in ionic systems analogous to metal clusters but at different energy and size scales.
- Identification of various regimes for surface plasmon attenuation based on system size.
- Observation of a cross-over in plasmon damping system-size-dependence.
- Evidence of tunable plasmon resonances by altering system size, ion type, and electrolyte parameters.
Conclusions:
- Soft plasmonics in confined electrolyte systems can be described by a new theoretical model.
- These ionic plasmons offer a distinct platform for light manipulation, complementary to metallic plasmonics.
- The tunability of these plasmon resonances presents opportunities for novel optical devices and applications.
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