2008/03/14 by Yan Zhao, Christos Argyropoulos, Yang Hao
Engineering · Materials Science · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Electromagnetic Scattering and Analysis #Metamaterials and Metasurfaces Applications #physics.class-ph
paper · pdf · doi:10.1364/oe.16.006717
published as Y. Zhao, C. Argyropoulos and Y. Hao, "Full-wave finite-difference time-domain simulation of electromagnetic cloaking structures," Optics Express, vol. 16, No. 9, pp. 6717-6730, 2008.
arxiv created 2008/03/14 · openalex publication_date 2008/04/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
This paper proposes a radial dependent dispersive finite-difference time-domain method for the modeling of electromagnetic cloaking structures. The permittivity and permeability of the cloak are mapped to the Drude dispersion model and taken into account in dispersive FDTD simulations. Numerical simulations demonstrate that under ideal conditions, objects placed inside the cloak are 'invisible' to external electromagnetic fields. However for the simplified cloak based on linear transformations, the back scattering has a similar level to the case of a PEC cylinder without any cloak, rendering the object still being 'visible'. It is also demonstrated numerically that the simplified cloak based on high-order transformations can indeed improve the cloaking performance.