Influence of the magnetic field on the plasmonic properties of transparent Ni anti-dot arrays
Emil Melander, Erik \"Ostman, Janine Keller, Jan Schmidt, Evangelos, Th. Papaioannou, Vassilios Kapaklis, Unnar B. Arnalds, B. Caballero, A., Garc\'ia-Mart\'in, J. C. Cuevas, Bj\"orgvin Hj\"orvarsson
TL;DR
This study investigates how magnetic fields influence the plasmonic properties of Ni anti-dot arrays, revealing magnetic modulation of surface plasmon polaritons and enhanced magneto-optical effects.
Contribution
It demonstrates magnetic field control over SPP dispersion and magneto-optical responses in 2D Ni anti-dot arrays, a novel insight into magnetoplasmonic interactions.
Findings
Enhanced optical transmission due to SPP excitation
Magnetic field modulates SPP dispersion relation
Increased Kerr rotation at transmission maxima
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.