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Title: Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
Authors: Silveirinha, Mário G.
Medeiros, Carla R.
Fernandes, Carlos A.
Costa, Jorge R.
Issue Date: 2010
Publisher: American Physical Society
Abstract: Here, we report the experimental realization of a flat near-field lens formed by an array of densely packed crossed metallic wires. It is shown that due to the unusually strong electric response of the inclusions, the metamaterial slab may enhance the deep subwavelength spatial spectrum of a given source. It is experimentally demonstrated that when the superlens is placed in between the source and the image planes, keeping the propagation distance in the air regions unchanged, the resolution is boosted by a factor of 2 over a broad bandwidth that may exceed 25% the frequency of operation.
Description: WOS:000274002300001 (Nº de Acesso Web of Science)
“Prémio Científico ISCTE-IUL 2011”
Peer reviewed: Sim
ISSN: 1098-0121
Publisher version: The definitive version is available at:
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica
IT-RI - Artigo em revista internacional com arbitragem científica

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