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Updated: Jun 19, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Are volume plasmons excitable by classical light?

Katja Höflich¹, Ulrich Gösele, Silke Christiansen

¹Max Planck Institute of Microstructure Physics, Weinberg, D-06120 Halle, Germany. hoeflich@mpi-halle.de

Physical Review Letters

|October 2, 2009

Summary

This summary is machine-generated.

We demonstrate the photoexcitation of volume plasmons in metallic nanoshells, which is typically forbidden. This occurs at the natural plasma frequency when the shell permittivity

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Area of Science:

Plasmonics
Nanophotonics
Quantum Mechanics

Background:

Volume plasmons are collective oscillations of free electrons in metals.
Classical electrodynamics prohibits direct photoexcitation of volume plasmons due to polarization mismatch.
Understanding plasmon behavior in metallic nanostructures is crucial for advanced optical applications.

Purpose of the Study:

To investigate the possibility of photoexciting volume plasmons in metallic nanoshells.
To explain the observed spectral features using analytical solutions.
To provide a physical model for volume plasmon excitation in nanostructures.

Main Methods:

Analytical solutions of the classical electromagnetic scattering problem.
Analysis of extinction spectra for metallic nanoshells.
Theoretical modeling of plasmon behavior.

Main Results:

Volume plasmon excitation was observed in metallic nanoshells.
A local maximum in extinction spectra at the natural plasma frequency was identified.
This phenomenon is linked to a vanishing real part of the shell permittivity.

Conclusions:

Volume plasmons can be photoexcited in metallic nanoshells under specific conditions.
A simple physical picture explains the observed phenomenon.
The findings are supported by experimental observations on silver and gold nanoshells.