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Updated: Jun 5, 2025
07:39
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
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Nonlocal effects in plasmon-emitter interactions
Mikkel Have Eriksen1, Christos Tserkezis1, N Asger Mortensen1,2
1POLIMA - Center for Polariton-Driven Light-Matter Interactions, University of Southern Denmark, DK-5230 Odense, Denmark.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
Surface-response functions (SRFs) significantly impact quantum light emitters near noble metal nanostructures. Understanding these functions is key to controlling quantum phenomena in nanoscale devices.
Area of Science:
- Plasmonics and Nanophotonics
- Quantum Electrodynamics
- Materials Science
Background:
- Quantum mechanical phenomena in noble metal nanostructures are critical at the few-nanometer scale.
- Surface-response functions (SRFs), like Feibelman d-parameters, describe mesoscopic effects at metal-dielectric interfaces.
Purpose of the Study:
- To investigate the influence of SRFs on quantum electrodynamic phenomena for emitters near noble metal nanostructures.
- To explore how dielectric environments and nanostructure geometry affect SRFs and quantum dynamics.
Main Methods:
- Theoretical modeling of quantum electrodynamic phenomena (Purcell enhancement, Lamb shift) near various noble metal nanostructures.
- Calculation of SRFs using the specular-reflection model for different dielectric environments.
- Analysis of emitter quantum dynamics in response to changes in metal region width and dielectric permittivity.
Main Results:
- SRFs significantly alter Purcell enhancement and Lamb shift for quantum emitters.
- Higher dielectric permittivity increases SRF magnitude; larger surface-to-volume ratios enhance SRF role.
- Decreasing metal width or increasing dielectric permittivity alters Purcell enhancement, Lamb shift, and emission spectra.
Conclusions:
- SRFs are crucial for understanding quantum emitter behavior in proximity to plasmonic nanostructures.
- Experimental spectra fitting to theoretical models could enable the determination of Feibelman d-parameters.
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