Surface lattice resonance-enhanced magneto-optical effects in Ni nanoparticle arrays

Magneto-optical effects such as the Faraday and magneto-optical Kerr effect (MOKE) offer the ability to tune the optical response of magnetic materials via external magnetic fields, enabling their use in controllable plasmonic components. Recent studies have shown that the magneto-optical response of ferromagnetic nanoparticles is strongly influenced by localized surface plasmon resonances (LSPRs) [1] and that the magneto-optical response of a single ferromagnetic nanoparticle is governed by the LSPR polarized orthogonally to the driving field, creating a unique two-dimensional optical system [2].