Spherical cloaking using nonlinear transformations for improved segmentation into concentric isotropic coatings
Optics
2015-05-13 v1
Abstract
Two novel classes of spherical invisibility cloaks based on nonlinear transformation have been studied. The cloaking characteristics are presented by segmenting the nonlinear transformation based spherical cloak into concentric isotropic homogeneous coatings. Detailed investigations of the optimal discretization (e.g., thickness control of each layer, nonlinear factor, etc.) are presented for both linear and nonlinear spherical cloaks and their effects on invisibility performance are also discussed. The cloaking properties and our choice of optimal segmentation are verified by the numerical simulation of not only near-field electric-field distribution but also the far-field radar cross section (RCS).
Cite
@article{arxiv.0905.1729,
title = {Spherical cloaking using nonlinear transformations for improved segmentation into concentric isotropic coatings},
author = {Cheng-Wei Qiu and Li Hu and Baile Zhang and Bae-Ian Wu and Steven G. Johnson and John D. Joannopoulos},
journal= {arXiv preprint arXiv:0905.1729},
year = {2015}
}
Comments
12 pages, 8 figures