Abstract:
The transmission of electromagnetic radiation through a silicon substrate with a square metallic grid deposited on one side has been studied experimentally. It has been established that the electrodynamic response of the structure is equivalent to the excitation of a transverse electromagnetic plasma mode in it with the plasma frequency determined by the geometric parameters of the grating, as well as by the thickness and relative permittivity of the substrate. A theoretical model has been developed to qualitatively describe the experimental results obtained.
Citation:
M. S. Sokolova, K. R. Dzhikirba, A. S. Astrakhantseva, I. V. Kukushkin, V. M. Muravev, “Plasma response of a metallic “grating” metasurface on a substrate”, Pis'ma v Zh. Èksper. Teoret. Fiz., 119:10 (2024), 752–756; JETP Letters, 119:10 (2024), 775–779