Abstract:
Magneto-optical effects in metal–dielectric nanostructured materials based on opal films coated with a thin cobalt/silver nanolayer, whose surface has a close-packed hexagonal lattice of metal nanohemispheres and nanoholes, have been investigated. It has been demonstrated experimentally and theoretically that a wide spectrum of modes of propagating surface plasmon polaritons is excited in such a system, which leads to a resonant enhancement of the magneto-optical effect in the Voigt geometry.
This work was supported by the Russian Science Foundation, project no. 19-72-20103. The development of the technology for obtaining heat-resistant opal films was supported by the Ministry of Science and Higher Education of the Russian Federation, state assignment no. 0040-2019-0012.
Citation:
I. A. Kolmychek, A. M. Romashkina, A. I. Maidykovskii, S. A. Gusev, N. S. Gusev, M. S. Sapozhnikov, V. G. Golubev, T. V. Murzina, “Resonant enhancement of the transverse magneto-optical effect in opal/cobalt/silver plasmonic heterostructures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 114:8 (2021), 526–532; JETP Letters, 114:8 (2021), 456–462