title: Lorentz Nonreciprocal Model for Hybrid Magnetoplasmonics.
abstract: Using localized surface plasmons, the magneto-optical response of dielectric thin films can be resonantly amplified and spectrally tailored. While the experimental realization and numerical simulation of such systems received considerable attention, so far, there is no analytical theoretical description. Here, we present a simple, intrinsically Lorentz nonreciprocal coupled oscillator model that reveals the underlying physics inside such systems and yields analytical expressions for the resonantly enhanced magneto-optical response. The predictions of the model are in good agreement with rigorous numerical solutions of Maxwell's equations for typical sample geometries. Our ansatz is transferable to other complex and hybrid nanooptical systems and will significantly facilitate device design.
authors.affiliation: 4th Physics Institute and Research Center SCOPE, University of Stuttgart, Stuttgart 70569, Germany.
authors.forename: Dominik
authors.initials: D
authors.lastname: Floess
authors.affiliation: 4th Physics Institute and Research Center SCOPE, University of Stuttgart, Stuttgart 70569, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Weiss
authors.affiliation: A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russia.
authors.forename: Sergei
authors.initials: S
authors.lastname: Tikhodeev
authors.affiliation: 4th Physics Institute and Research Center SCOPE, University of Stuttgart, Stuttgart 70569, Germany.
authors.forename: Harald
authors.initials: H
authors.lastname: Giessen