Abstract
We present a finite-element analysis of a diffraction problem involving a coated cylinder enabling the electromagnetic cloaking of a lossy object with sharp wedges located within its core. The coating consists of a heterogeneous anisotropic material deduced from a geometrical transformation as first proposed by Pendry et al. [Science 312, 1780 (2006)] . We analyze the electromagnetic response of the cloak in the presence of an electric line source in p polarization and a loop of magnetic current in s polarization. We find that the electromagnetic field radiated by such a source located a fraction of a wavelength from the cloak is perturbed by less than 1%. When the source lies in the coating, it seems to radiate from a shifted location.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
André Nicolet, Frédéric Zolla, and Sébastien Guenneau
Opt. Lett. 33(14) 1584-1586 (2008)
Min Yan, Zhichao Ruan, and Min Qiu
Opt. Express 15(26) 17772-17782 (2007)
Ying Huang, Yijun Feng, and Tian Jiang
Opt. Express 15(18) 11133-11141 (2007)