Optical anisotropic metamaterials: Negative refraction and focusing

By A. Fang, Thomas Koschny, Costas M. Soukoulis. 2009

162 citations recorded by the source corpus.

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 effective permittivities. The pseudo focusing for the real 3D wire medium agrees very well with the homogeneous medium having the effective permittivity tensor of the wire medium. Studies also show that in the long-wavelength limit, the hyperbolic dispersion relation of the 3D wire medium can be valid even for evanescent modes.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/2d94c6deec7ecbfd7e391a1b8bb1a58b2c781b76

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In Atomic and Molecular Physics, and Optics

In Biomedical Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Past achievements and future challenges in the development of three-dimensional photonic metamaterials (2011, background): “Although achieving isotropy remains a goal for some metamaterial structures, indefinite or hyperbolic metamaterials rely on intentional anisotrop”