Abstract
The surface plasmon resonance and strong coupling of three layers of metal-coated nanorods are studied in this paper. Numerical results show that an incident electromagnetic wave with a particular frequency can be guided through localized surface plasma resonances to different-sized cavities, realizing excellent absorbance of electromagnetic waves. The refractive index of the surrounding medium also influences the resonant frequency dramatically. Different metal shell thicknesses and materials can be used to effectively adjust the formant frequency. These unique properties of multi-mode resonance and excellent absorbance of electromagnetic waves in a multi-nanorod system have prospective applications in the fields of plasmon resonant sensors, resonators.
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Zhang, X., Yu, G., Cao, R. et al. Multi-mode plasma resonator based on multi metal-coated nanorods. Eur. Phys. J. D 74, 149 (2020). https://doi.org/10.1140/epjd/e2020-100375-x
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DOI: https://doi.org/10.1140/epjd/e2020-100375-x