Three-dimensional Negative-Refractive-Index Metamaterials Based on All-Dielectric Coated Spheres
Optics
2010-04-28 v1
Abstract
A type of 3-dimensional optical negative-refractive-index metamaterials composed of all dielectric nanospheres is proposed and demonstrated theoretically. The metamaterials are constructeded by pairing together two kinds of dielectric nanospheres as concentric shells embedded in a host medium. Mie-based extended effective theory shows that the dielectric core and the dielectric shell provide the negative permeability and the negative permittivity, respectively, both due to the strong Mie resonances. Within the coupled resonant frequency region, the negative index of refraction can be achieved.
Keywords
Cite
@article{arxiv.1004.4694,
title = {Three-dimensional Negative-Refractive-Index Metamaterials Based on All-Dielectric Coated Spheres},
author = {Na Fu and Weixing Shu and Hailu Luo and Zhixiang Tang and Yanhong Zou and Shuangchun Wen and Dianyuan Fan},
journal= {arXiv preprint arXiv:1004.4694},
year = {2010}
}
Comments
10 pages,5 figures