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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 7: Poster (joint session MP/QI)

MP 7.12: Poster

Tuesday, March 19, 2024, 11:00–13:00, Poster B

Comparison the determination techniques of the effective refractive index of all-dielectric metasurface as a graphene layer substrate using finite-element electromagnetic simulations — •Zoya Eremenko and Aliaksei Charnukha — Leibniz Institute for Solid State and Materials Research

We proposed the use of the resonant all-dielectric metasurface as a graphene layer substrate. The task is to define the effective refractive index of such a metasurface to have the possibility to control the surface plasmon polariton propagation length. We studied some techniques to define the effective refractive index of the metasurface. The first one is determining the band structure of a two-dimensional photonic crystal with a square lattice of the defined metasurface structure and obtained the eigen frequencies at definite relation between metasurface unit cell parameters. The second one is retrieval of the effective parameter technique from S-parameters defined from simulations results. Thus, such techniques give the opportunity to use any structure configuration of the resonant all-dielectric metasurfaces.

Keywords: all-dielectric metasurface; graphene layer; surface plasmon polariton; effective refractive index