Metamaterial slab as a lens, a cloak or something in between

Abstract

We show that a metamaterial slab with arbitrary values of epsilon and mu behaves as a cloak at a finite frequency for a small object located sufficiently close to it due to the suppression of the object's optical excitations by enhanced reflections. Reflections due to propagating components can partially suppress the excitation while evanescent components can cloak the object completely. In particular, a Veselago slab with epsilon = mu = -1 + i delta, as well as a class of anisotropic negative refractive index slabs, can completely cloak the small object placed within a finite distance from the slab when delta -> 0.

28 pages, 4 figures, including a paper and its auxiliary material

References in corpus (3)

• General Relativity in Electrical Engineering
• Amplification of evanescent waves in a lossy left-handed material slab
• Solutions in folded geometries, and associated cloaking due to anomalous resonance

Cited by in corpus (9)

• Metamaterial-Enhanced Coupling between Magnetic Dipoles for Efficient Wireless Power Transfer
• Anomalous localized resonance using a folded geometry in three dimensions
• Theoretical and experimental evidence of level repulsion states and evanescent modes in sonic crystal stubbed waveguides
• Level repulsion and evanescent waves in sonic crystals
• Cloaking and imaging at the same time
• The searchlight effect in hyperbolic materials
• Enhancement of polarizabilities of cylinders with cylinder-slab resonances
• Superlens induced loss-insensitive optical force
• Cloaking due to anomalous localized resonance in plasmonic structures of confocal ellipses