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Resolving subwavelength objects with a crossed wire mesh superlens operated in backscattering mode

Silveirinha, M. G. ; Medeiros, C. R. ; Fernandes, C. A. ; Costa, J.R.

New Journal of Physics Vol. 13, Nº 053004, pp. 1 - 14, May, 2011.

ISSN (print): 1367-2630
ISSN (online):

Scimago Journal Ranking: 3,49 (in 2011)

Digital Object Identifier: 10.1088/1367-2630/13/5/053004

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In this work, we demonstrate that a crossed-wires superlens operated in backscattering mode can resolve targets separated by a subwavelength distance. It is theoretically shown that the effect of the backscattered field on the return loss of a probe antenna is sufficiently strong to allow us to discriminate the targets over a broad range of frequencies. These properties have been
experimentally confirmed at microwave frequencies.