Propagation and tunneling of electromagnetic waves through uniaxialmetamaterials at arbitrary orientations of the optical axis

摘要

Boundary electrodynamic problem for a layer of effectively uniaxial absorbing metamaterial (MM) is solved. Properinhomogeneous waves in the layer are neither TM (TE), when the optical axis is non-parallel to the incidence plane, norpurely evanescent. Features of excitation of particular waves with linear amplitude dependence on coordinates in MMare considered. Effect of small dielectric (magnetic) anisotropy and absorption of MM on imaging properties of theVeselago-Pendry lens is analyzed. It is shown that presence of a small anisotropy is a limiting factor much stronger thansmall losses, and careful account of effective permittivity (permeability) anisotropy for "superlens" devices is required.