Super-resolution imaging by one-dimensional, microwave left-handed metamaterials with an effective negative index

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buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage304216-7en_US
dc.citation.issueNumber30en_US
dc.citation.spage304216-1en_US
dc.citation.volumeNumber20en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.contributor.authorLi, Z.en_US
dc.contributor.authorAydin, K.en_US
dc.date.accessioned2016-02-08T10:08:23Z
dc.date.available2016-02-08T10:08:23Z
dc.date.issued2008en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractSuperlenses based on metamaterials are promising candidates for achieving subwavelength resolution. We report here our experimental studies on super-resolution imaging from one-dimensional (1D) negative index metamaterial superlenses at microwave frequencies. The metamaterial structure under investigation is shown to have a left-handed transmission band at frequencies where both effective permittivity and permeability are negative. The retrieved effective parameters are in good agreement with the measurements. We achieved a resolution of 0.2λ by imaging a single point source from a 1D superlens. Moreover, the effect of the superlens' thickness on the resolution is studied. A thicker superlens suffers from more losses, which in turn reduces the resolution. Two point sources that were separated by distances that were smaller than a half-wavelength were successfully resolved with the negative index superlens.en_US
dc.identifier.doi10.1088/0953-8984/20/30/304216en_US
dc.identifier.eissn1361-648X
dc.identifier.issn0953-8984
dc.identifier.urihttp://hdl.handle.net/11693/23060
dc.language.isoEnglishen_US
dc.publisherInstitute of Physics Publishing Ltd.en_US
dc.relation.isversionofhttp://doi.org/10.1088/0953-8984/20/30/304216en_US
dc.source.titleJournal of Physics: Condensed Matteren_US
dc.titleSuper-resolution imaging by one-dimensional, microwave left-handed metamaterials with an effective negative indexen_US
dc.typeArticleen_US
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Department of Physics
Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)
Nanotechnology Research Center (NANOTAM)