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Fano resonances in nested wire media

Fernandes, D. E. ; Maslovski , S. ; Silveirinha, M. G.

Physical Review B - Condensed Matter and Materials Physics Vol. 8, Nº 045130 , pp. 1 - 11, July, 2013.

ISSN (print): 1098-0121
ISSN (online): 1098-0121

Journal Impact Factor: 3,736 (in 2014)

Digital Object Identifier: 10.1103/PhysRevB.88.045130

Abstract
We study the interaction of electromagnetic waves with two nested parallel metallic wire arrays, such that the unit cell of the structure has two inequivalent parallel wires. We develop a formalism to solve scattering problems using effective medium methods and prove that the electromagnetic coupling of the two sets of wires may result in the emergence of sharp Fano resonances.