Comparative Study of Electromagnetic Field Solvers for the Modeling of Nanoscale Plasmonic Scatterers

The nanoscale systems are of great importance in modern science and technology, offering a wide range of possible daily life applications. In order to characterize the electromagnetic (EM) properties of metallic nanotopologies, the commercialized computational tools COMSOL, CST, and Lumerical have been widely used. In this work, the performance of the above tools is compared, through the investigation of the plane wave response of canonical spherical and cubical nanoparticles. It is demonstrated that not all EM field solvers provide an accurate description of the nanoparticle's behavior.