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Updated: Jun 8, 2026

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
Nonlinear hybridization of the fundamental eigenmodes of microscopic ferromagnetic ellipses
V E Demidov1, M Buchmeier, K Rott
1Institute for Applied Physics, University of Muenster, Corrensstraße 2-4, 48149 Muenster, Germany. demidov@uni-muenster.de
Abstract:
We have studied experimentally with high spatial resolution the nonlinear eigenmodes of microscopic Permalloy elliptical elements. We show that the nonlinearity affects the frequencies of the edge and the center modes in an essentially different way. This leads to repulsion of corresponding resonances and to nonlinear mode hybridization resulting in qualitative modifications of the spatial characteristics of the modes. We find that the nonlinear counterparts of the edge and the center modes simultaneously exhibit features specific for both their linear analogues.
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