Giant magneto-optical orientational effect in plasmonic heterostructures.
Magneto-optical (MO) properties of perforated heterostructures consisting of a thin metallic film perforated with a periodic array of subwavelength slits and a smooth magnetic dielectric are investigated. Rigorous modeling revealed a magnetization-even MO effect determined by the relative change in the intensity of the transmitted or reflected light when the sample is magnetized in-plane perpendicularly to the slits. The effect takes its maximum value when the p-polarized incident light excites quasi-waveguided eigenmodes in the magnetic layer with the phase velocity close to the one of the TE mode in the nongyrotropic planar waveguide.
1A. M. Prokhorov General Physics Institute of Russian Academy of Science, Moscow 119991, Russia. Vladimir.Belotelov@gmail.com
V I
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Belotelov
D A
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Bykov
L L
LL
Doskolovich
A N
AN
Kalish
V A
VA
Kotov
A K
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Zvezdin