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Effects of Spatial Dispersion on Reflection from Mushroom-type Artificial Impedance Surfaces
Olli Luukkonen, Mário G. Silveirinha, Alexander B. Yakovlev +3
Several recent works have emphasized the role of spatial dispersion in wire media, and demonstrated that arrays of parallel metallic wires may behave very differently from a uniaxi…
Experimental Demonstration of a Structured Material with Extreme Effective Parameters at Microwaves
M. G. Silveirinha, C. A. Fernandes, J. R. Costa +1
Following our recent theoretical studies [M. G. Silveirinha, C. A. Fernandes, Phys. Rev. B, 78, 033108, 2008], it is experimentally verified that an array of crossed metallic wires…
Superlens made of a metamaterial with extreme effective parameters
M. G. Silveirinha, C. A. Fernandes, J. R. Costa
We propose a superlens formed by an ultra-dense array of crossed metallic wires. It is demonstrated that due to the anomalous interaction between crossed wires, the structured subs…
Transmission-Line Analysis of Epsilon-Near-Zero (ENZ)-Filled Narrow Channels
Andrea Alu, Mario G. Silveirinha, Nader Engheta
Following our recent interest in metamaterial-based devices supporting resonant tunneling, energy squeezing and supercoupling through narrow waveguide channels and bends, here we a…
Comment on "Guiding, Focusing, and Sensing on the Subwavelength Scale Using Metallic Wire Arrays"
Pavel A. Belov, Mario G. Silveirinha, Constantin R. Simovski +2
This is a comment on "Guiding, Focusing, and Sensing on the Subwavelength Scale Using Metallic Wire Arrays" by G. Shvets, S. Trendafilov, J. B. Pendry and A. Sarychev published in…
Reflectionless Sharp Bends and Corners in Waveguides Using Epsilon-Near-Zero Effects
Brian Edwards, Andrea Alu, Mario G. Silveirinha +1
Following our recent theoretical and experimental results that show how zero-permittivity metamaterials may provide anomalous tunneling and energy squeezing through ultranarrow wav…