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A Metamaterial Homogenization Approach with Application to the Characterization of Microstructured Composites with Negative Parameters
Mario G. Silveirinha
In this work, we develop a new systematic and self-consistent approach to homogenize arbitrary non-magnetic periodic metamaterials. The proposed method does not rely on the solutio…
Design of Matched Zero-Index Metamaterials Using Non-Magnetic Inclusions in Epsilon-Near-Zero (ENZ) Media
Mario Silveirinha, Nader Engheta
In this work, we study the electrodynamics of metamaterials that consist of resonant non-magnetic inclusions embedded in an epsilon-near-zero (ENZ) host medium. It is shown that th…
Sub-wavelength imaging at infrared frequencies using an array of metallic nanorods
Mario G. Silveirinha, Pavel A. Belov, Constantin R. Simovski
We demonstrate that an array of metallic nanorods enables sub-wavelength (near-field) imaging at infrared frequencies. Using an homogenization approach, it is theoretically proved…
Epsilon-Near-Zero (ENZ) Metamaterials and Electromagnetic Sources: Tailoring the Radiation Phase Pattern
Andrea Alu, Mario Silveirinha, Alessandro Salandrino +1
In this work, we investigate the response of epsilon-near-zero (ENZ) metamaterials and plasmonic materials to electromagnetic source excitation. The use of these media for tailorin…
Nonlocal Homogenization Model for a Periodic Array of Epsilon-Negative Rods
Mario Silveirinha
We propose an effective permittivity model to homogenize an array of long thin epsilon-negative rods arranged in a periodic lattice. It is proved that the effect of spatial dispers…