We show that, under appropriate oblique-incidence and polarization conditions, the inherent opaqueness of a homogeneous, isotropic single-negative slab may be perfectly compensated (in the ideal lossless case) by a homogeneous, anisotropic (uniaxial) double-positive slab, so that complete tunneling (with total transmission and zero phase delay) occurs. We present an analytical and numerical study aimed at deriving the basic design rules, elucidating the underlying physical mechanisms, and exploring the role of the various involved parameters.
© 2011 Optical Society of America
Optics at Surfaces
Original Manuscript: June 17, 2011
Manuscript Accepted: July 24, 2011
Published: September 6, 2011
Giuseppe Castaldi, Vincenzo Galdi, Andrea Alù, and Nader Engheta, "Electromagnetic tunneling of obliquely incident waves through a single-negative slab paired with a double-positive uniaxial slab," J. Opt. Soc. Am. B 28, 2362-2368 (2011)