Giant transversal Kerr effect in magneto-plasmonic heterostructures: The scattering-matrix method
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- Belotelov, V.I., Bykov, D.A., Doskolovich, L.L. et al. J. Exp. Theor. Phys. (2010) 110: 816. doi:10.1134/S1063776110050134
The magneto-optical intensity effect (transversal Kerr effect) in a metal-dielectric periodic heterostructure that consists of a metallic grating formed by subwavelength slits and a dielectric substrate magnetized along the slits is shown to be resonantly enhanced by several tens of times in the excitation region of structure eigenmodes—surface plasmon polaritons and Fabry-Perot modes. The Fourier modal and scattering-matrix methods adapted to the case of gyrotropic periodic media have been used. The resonant enhancement of the intensity effect is attributable to the phenomenon of magneto-optical nonreciprocity.