Electromagnetic tunneling of obliquely-incident waves through a single-negative slab paired with a double-positive uniaxial slab

摘要

We show that, under appropriate oblique-incidence and polarizationconditions, the inherent opaqueness of a homogeneous, isotropic single-negativeslab may be perfectly compensated (in the ideal lossless case) by a homogenous,anisotropic (uniaxial) double-positive slab, so that complete tunneling (withtotal transmission and zero phase delay) occurs. We present an analytical andnumerical study aimed at deriving the basic design rules, elucidating theunderlying physical mechanisms, and exploring the role of the various involvedparameters.