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Opt Express. 2009 Apr 13;17(8):6301-10.

Negative refractive index metamaterials using only metallic cut wires.

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  • 1Institut d'Electronique Fondamentale, Univ. Paris-Sud, CNRS, UMR 8622, 91405 Orsay cedex, France.


We present, design and analyze a novel planar Left-Handed (LH) metamaterial at microwave frequencies. This metamaterial is composed of only metallic cut wires and is used under normal-to-plane incidence. Using Finite Element Method (FEM) based simulations and microwave experiments, we have investigated the material properties of the structure. Simultaneous negative values are observed for the permittivity epsilon and permeability mu by the inversion method from the transmission and reflection responses. A negative index n is verified in a bulk prism engineered by stacking several layers of the metamaterial. Our work demonstrates the feasibility of a LH metamaterial composed of only cut wires.

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