On Electromagnetic-Acoustic Analogies in Energetic Relations for Waves Interacting with Material Surfaces
A. Dukata and J. Kapelewski
Faculty of Electronics, Military University of Technology, S. Kaliskiego 2, 00-908 Warsaw, Poland
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In the paper we consider propagation of a monochromatic surface electromagnetic field at the interface separating two semiinfinite media - a metamaterial (generally with complex permittivity and permeability) and a conventional dielectric medium. The metamaterial is treated as homogeneous and isotropic (it is socalled effective medium approximation). It is true for e.g. artificial metamaterials with negative dielectric permittivity and negative permeability in the microwave frequency range. The last materials are known as left handed and a conventional as right handed media. In this work the classical optical theorem is extended to the case of scattering of electromagnetic surface waves incident at the interface separating a left handed medium and a right handed dielectric medium. The analogous theorem is known in the scattering theory for elastic fields.
DOI: 10.12693/APhysPolA.114.A-69
PACS numbers: 41.20.Jb