Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction

Detalhes bibliográficos
Autor(a) principal: Silveirinha, Mário G.
Data de Publicação: 2010
Outros Autores: Medeiros, Carla R., Fernandes, Carlos A., Costa, Jorge R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10071/6196
Resumo: 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.
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spelling Experimental verification of broadband superlensing using a metamaterial with an extreme index of refractionHere, 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.American Physical Society2014-01-16T15:44:21Z2010-01-01T00:00:00Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/6196eng1098-0121Silveirinha, Mário G.Medeiros, Carla R.Fernandes, Carlos A.Costa, Jorge R.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:56:33Zoai:repositorio.iscte-iul.pt:10071/6196Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:29:00.564114Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
title Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
spellingShingle Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
Silveirinha, Mário G.
title_short Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
title_full Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
title_fullStr Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
title_full_unstemmed Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
title_sort Experimental verification of broadband superlensing using a metamaterial with an extreme index of refraction
author Silveirinha, Mário G.
author_facet Silveirinha, Mário G.
Medeiros, Carla R.
Fernandes, Carlos A.
Costa, Jorge R.
author_role author
author2 Medeiros, Carla R.
Fernandes, Carlos A.
Costa, Jorge R.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silveirinha, Mário G.
Medeiros, Carla R.
Fernandes, Carlos A.
Costa, Jorge R.
description 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.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01T00:00:00Z
2010
2014-01-16T15:44:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10071/6196
url http://hdl.handle.net/10071/6196
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1098-0121
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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