Magnetoplasmonic Crystals Research Articles

Optical properties of two-layer one-dimensional magneto-plasmonic crystals

This paper discusses the optical properties of magneto-plasmonic crystals, which are one-dimensional metallic gratings deposited on a uniform magnetic dielectric layer. All possible cases of the orientation of the magnetization are investigated. The resonance features in the spectra of magnetooptic effects are explained in terms of the excitation of the intrinsic waves of the system: surface plasmon–polaritons and quasi-waveguide modes of the dielectric layer.

Controlling optical transmission through magneto-plasmonic crystals with an external magnetic field

The magneto-optical properties of surface-plasmon polaritonic crystals on ferromagnetic substrates have been studied. The resonant optical transmission of such magneto-plasmonic nanostructures can be efficiently controlled with the applied static magnetic field. The effect is explained by the influence of magneto-optical effects on surface-plasmon polariton waves supported by the metal/magnetic–dielectric interface and, in particular, on the plasmonic bandgap formation.