A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks
Classical Physics
2009-05-13 v1
Abstract
A radial-dependent dispersive finite-difference time-domain (FDTD) method is proposed to simulate electromagnetic cloaking devices. The Drude dispersion model is applied to model the electromagnetic characteristics of the cloaking medium. Both lossless and lossy cloaking materials are examined and their operating bandwidth is also investigated. It is demonstrated that the perfect "invisibility" from electromagnetic cloaks is only available for lossless metamaterials and within an extremely narrow frequency band.
Keywords
Cite
@article{arxiv.0805.2050,
title = {A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks},
author = {Christos Argyropoulos and Yan Zhao and Yang Hao},
journal= {arXiv preprint arXiv:0805.2050},
year = {2009}
}
Comments
18 pages, 10 figures