Fast Plasma Frequency Sweep in Drude-like EM Scatterers via the Reduced-Basis Method

TL;DR

This paper introduces a Reduced-Basis Method to efficiently analyze plasma-based electromagnetic scatterers, enabling rapid plasma frequency sweeps for designing and characterizing metasurfaces with improved computational speed.

Contribution

The paper presents a novel adaptive reduced-order modeling approach for fast plasma frequency sweeps in Drude-like EM scatterers, improving computational efficiency over traditional methods.

Findings

The RBM achieves significant speed-up compared to FEM.

The method accurately characterizes plasma metasurfaces across frequency ranges.

Validation shows the approach's effectiveness in practical electromagnetic simulations.

Abstract

In this work, we propose to use the Reduced-Basis Method (RBM) as a model order reduction approach to solve Maxwell's equations in electromagnetic (EM) scatterers based on plasma to build a metasurface, taking into account a parameter, namely, the plasma frequency. We build up the reduced-order model in an adaptive fashion following a greedy algorithm. This method enables a fast sweep over a wide range of plasma frequencies, thus providing an efficient way to characterize electromagnetic structures based on Drude-like plasma scatterers. We validate and test the proposed technique on several plasma metasurfaces and compare it with the finite element method (FEM) approach.