Influence of the magnetic field on the plasmonic properties of transparent Ni anti-dot arrays

Abstract

Extraordinary optical transmission is observed due to the excitation of surface plasmon polaritons (SPPs) in 2-Dimensional hexagonal anti-dot patterns of pure Ni thin films, grown on sapphire substrates. A strong enhancement of the polar Kerr rotation is recorded at the surface plasmon related transmission maximum. Angular resolved reflectivity measurements under an applied field, reveal an enhancement and a shift of the normalized reflectivity difference upon reversal of the magnetic saturation (transverse magneto-optical Kerr effect-TMOKE). The change of the TMOKE signal clearly shows the magnetic field modulation of the dispersion relation of SPPs launched in a 2D patterned ferromagnetic Ni film.

References in corpus (3)

• Magnetooptic enhancement and magnetic properties in Fe antidot films with hexagonal symmetry
• Generalized scattering-matrix approach for magneto-optics in periodically patterned multilayer systems
• Surface plasmons and magneto-optic activity in hexagonal Ni anti-dot arrays

Cited by in corpus (5)

• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Plasmonic generation of spin currents
• Magnetic moment generation in small gold nanoparticles via the plasmonic inverse Faraday effect
• Light localisation and magneto-optic enhancement in Ni anti-dot arrays
• Broadband enhancement of the magneto-optical activity of hybrid Au loaded Bi:YIG