Abstract
The plasmonic properties of silver nanosphere clusters are investigated using the finite element and the plasmon hybridization methods. The nanoparticle clusters are found to exhibit multiple plasmon resonances with large induced electromagnetic field enhancements. For symmetric clusters, we show how group theory can be used to identify the microscopic nature of the plasmon resonances. For larger clusters, we show that narrow Fano resonances are frequently present in their optical spectra.
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K. Bao, N.A. Mirin contributed equally to the project.
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Bao, K., Mirin, N.A. & Nordlander, P. Fano resonances in planar silver nanosphere clusters. Appl. Phys. A 100, 333–339 (2010). https://doi.org/10.1007/s00339-010-5861-3
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DOI: https://doi.org/10.1007/s00339-010-5861-3