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3 October 2022 Dispersion of surface plasmon polaritons (SPPs) in weak and strong coupling regimes
Md Golam Rabbani Chowdhury, Shamaar R. Howard, Kanij M. Khabir, Mikhail A. Noginov
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Proceedings Volume PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX; PC1219702 (2022) https://doi.org/10.1117/12.2633668
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
We have studied dispersion of surface plasmon polaritons (SPPs) in the Kretcshmann’s geometry (prism/Ag/dye-doped polymer) in weak and strong exciton-plasmon coupling regimes. In reflection, the dispersion curves were in a good agreement with simple model predictions at small concentrations of the dye (R6G) in the polymer (PMMA). At the same time, highly unusual multi-segment ladder-like dispersion curves were observed at large dye concentrations. To describe this behavior, we upgraded the theoretical model taking into account strong exciton-plasmon coupling. The dispersion curves obtained in emission experiments were strongly different from those in reflection and did not seem to be affected by the strong coupling.
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Md Golam Rabbani Chowdhury, Shamaar R. Howard, Kanij M. Khabir, and Mikhail A. Noginov "Dispersion of surface plasmon polaritons (SPPs) in weak and strong coupling regimes", Proc. SPIE PC12197, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, PC1219702 (3 October 2022); https://doi.org/10.1117/12.2633668
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KEYWORDS
Surface plasmon polaritons
Polymers
Reflection
Polymethylmethacrylate
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