Metamaterials, a challenge for homogenization theory

Conference: CEM 2006 - 6th International Conference on Computational Electromagnetics
04/04/2006 - 04/06/2006 at Aachen, Germany

Proceedings: CEM 2006

Pages: 2Language: englishTyp: PDF

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Bossavit, Alain (LGEP, CNRS, Gif-sur-Yvette, France)

Metamaterials are crystal-like composites, derived by spatial translations from a generating cell, where highfrequency electromagnetic fields propagate in surprising ways at some frequencies: Negative refraction, "bending light the wrong way", refocusing of divergent beams into tightly parallel ones, are observed, and attributed to the fact that, at a spatial scale higher than the cell size, the composite behaves as a homogeneous material, but one with "emerging" properties, not possessed by any of the components.