Optical anisotropic metamaterials: Negative refraction and focusing
Optical anisotropic metamaterials: Negative refraction and focusing
We design three-dimensional (3D) metallic nanowire media with different structures and numerically demonstrate that they can be homogeneous effective indefinite anisotropic media by showing that their dispersion relations are hyperbolic. For a finite slab, a nice fitting procedure is exploited to obtain the dispersion relations from which we retrieve the …