Abstract
Highly anisotropic metal-dielectric structures reveal unique dispersion properties providing new optical effects. Here we study experimentally linear optical and magneto-optical response of arrays of plasmonic gold nanorods and similar structures complemented by a thin nickel film. We show that both types of structures reveal distinct optical features expected for hyperbolic media and associated with the epsilon-near-zero (ENZ) and epsilon-near-pole (ENP) points. In the case of Ni-containing nanocomposites, we observe linear magneto-optical effects in transmission through the structure, increasing in the vicinity of these points. This observation reveals an important role of the local field enhancement in a hyperbolic medium associated with ENZ and ENP dispersion points in the appearance of magneto-optical activity of magnetic hyperbolic metamaterials.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
B. F. Diaz-Valencia
Opt. Lett. 46(19) 4863-4866 (2021)
I. A. Kolmychek, I. V. Malysheva, A. P. Leontiev, K. S. Napolskii, and T. V. Murzina
Opt. Lett. 47(22) 6009-6012 (2022)
I. A. Kolmychek, V. B. Novikov, I. V. Malysheva, A. P. Leontiev, K. S. Napolskii, and T. V. Murzina
Opt. Lett. 45(7) 1866-1869 (2020)