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Enhanced Faraday rotation by crystals of core-shell magnetoplasmonic nanoparticles
Authors
P. Varytis Pantazopoulos, P.A. Stefanou, N.
Publication date
1 January 2016
Publisher
Abstract
Collective hybridized plasmon modes, which enable strong magnetooptical coupling and consequent enhanced Faraday effect in three-dimensional periodic assemblies of magnetic dielectric nanoparticles coated with a noble-metal shell, are studied by means of rigorous full electrodynamic calculations using an extension of the layer-multiple-scattering method, in conjunction with the effective-medium approximation. A thorough analysis of relevant photonic dispersion diagrams and transmission spectra provides a consistent explanation of the underlying physical mechanisms to a degree that goes beyond existing interpretation. It is shown that properly designed structures of such composite magnetoplasmonic nanoparticles offer a versatile platform for engineering increased and broadband Faraday rotation. © 2016 American Physical Society
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Last time updated on 10/02/2023