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Updated: Sep 17, 2025

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Plasmon-exciton strong coupling in an organic material.
Imane Hamideddine1, Noureddine Ben Afkir1, Siham Refki1
1Optics & Photonics Pôle, MAScIR, University Mohammed VI Polytechnic, Benguerir, Morocco.
We achieved strong coupling between surface plasmons and excitons in dye-polymer materials. This coupling enhances and confines optical fields, demonstrating a significant advancement in plasmonics and materials science.
Area of Science:
- Plasmonics
- Materials Science
- Optics
Background:
- Surface plasmons and excitons are key optical phenomena.
- Understanding their interaction is crucial for advanced optical devices.
Purpose of the Study:
- To investigate strong coupling between surface plasmons and excitons in dye-polymer materials.
- To analyze the impact of material thickness and concentration on this coupling.
Main Methods:
- Experimental angular scans of reflectivity in a Kretshmann-Raether configuration.
- Lorentz model for dielectric constant determination.
- Electromagnetic calculations and finite difference time domain simulations.
Main Results:
- Observed anticrossing in dispersion relations, indicating strong coupling.
- Rabi splitting energy measured in the [Formula: see text] range, dependent on sample properties.
- Demonstrated optical field enhancement and subwavelength confinement.
Conclusions:
- Strong coupling between surface plasmons and excitons was successfully achieved.
- This coupling is driven by field localization, enhancement, and sharp absorption transitions.
- Findings support potential applications in optical field manipulation.
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