Year: 2025
Type: conference-paper
Abstract: Metasurfaces are engineered structures consisting of subwavelength scatterers capable of manipulating the amplitude, polarization, and phase of an impinging electromagnetic wave. Their design process involves numerically solving Maxwell's equations. Among these solvers, the finite-difference timedomain (FDTD) method is currently the defacto standard owing to its versatility in handling complex geometries and its relatively low use of computational resources. However, FDTD is constrained by the Courant-Friedrichs-Lewy (CFL) condition, which requires the time step to scale relative to the spatial size. The CFL condition is mainly a problem for detailed structures that are sub-wavelength, like in metamaterials. This challenge drives research toward overcoming CFL limits for faster, more accurate large-scale metasurface simulations [1].
Institution: Eindhoven University of Technology
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7117578744