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6 May 2008 Plasmonic excitations in ordered assemblies of metallic nanoshells
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Abstract
Periodic nanostructures for plasmonic engineering, comprising one or two types of silica core - metallic shell spherical particles, are studied by means of full electrodynamic calculations using the layer-multiple-scattering method. The complex photonic band structure of such three-dimensional crystals is analyzed in conjunction with relevant transmission spectra of corresponding finite slabs and the physical origin of the different optical modes is elucidated, providing a consistent interpretation of the underlying physics. In the case of binary structures, collective plasmonic modes originating from the two building components coexist, leading to broadband absorption and a rich structure of resonances and hybridization gaps over an extended frequency range.
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N. Stefanou, C. Tserkezis, and G. Gantzounis "Plasmonic excitations in ordered assemblies of metallic nanoshells", Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 698910 (6 May 2008); https://doi.org/10.1117/12.778589
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