Analysis of Drude-Like Plasma Scatterers via the Reduced-Basis Method for Phase-Gradient Reconfigurable Metasurfaces Design

In this work, we explore the EM response of Drude-like plasma scatterers with diverse geometries and physical configurations, aiming to design a phase-gradient reconfigurable metasurface. We use the Reduced-Basis Method (RBM) to obtain a reduced order model (ROM) of Maxwell's equations parametrized only by the plasma frequency of the considered scatterer. We take advantage of the efficiency and reliability of RBM to study the propagation of an electromagnetic (EM) wave through several types of plasma-based metasurfaces, analyzing different operating conditions and structural configurations.