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Paper detail

Three-dimensional Negative-Refractive-Index Metamaterials Based on All-Dielectric Coated Spheres

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.

preprint2010arXivOpen access
Na FuWeixing ShuHailu LuoZhixiang TangYanhong ZouShuangchun WenDianyuan Fan
physics.optics
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Na FuWeixing ShuHailu LuoZhixiang TangYanhong ZouShuangchun WenDianyuan Fan

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