Composite chiral metamaterials with negative refractive index and high values of the figure of merit

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buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage6156en_US
dc.citation.issueNumber6en_US
dc.citation.spage6146en_US
dc.citation.volumeNumber20en_US
dc.contributor.authorLi, Z.en_US
dc.contributor.authorCaglayan, H.en_US
dc.contributor.authorAlici, K. B.en_US
dc.contributor.authorKafesaki, M.en_US
dc.contributor.authorSoukoulis, C. M.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2015-07-28T12:01:06Z
dc.date.available2015-07-28T12:01:06Z
dc.date.issued2012en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractA composite chiral metamaterial (CCMM) is designed and studied both numerically and experimentally. The CCMM is constructed by the combination of a continuous metallic wires structure and a purely chiral metamaterial (CMM) that consists of conjugated Rosettes. For the CMM, only very small, useful bands of negative index can be obtained for circularly polarized waves. These bands are all above the chiral resonance frequencies because of the high value of the effective parameter of relative permittivity epsilon. After the addition of the continuous metallic wires, which provide negative permittivity, the high value of epsilon can be partially compensated. Thus, a negative index band for the left circularly polarized wave that is below the chiral resonance frequency is obtained for the CCMM. At the same time, a negative index band for the right circularly polarized wave that is above the chiral resonance frequency is also obtained. Furthermore, both negative index bands correspond to the transmission peaks and have high values of the figure of merit. Therefore, the CCMM design that is proposed here is more suitable than the CMM for the construction of chiral metamaterials with a negative index. (C) 2012 Optical Society of Americaen_US
dc.identifier.doi10.1364/OE.20.006146en_US
dc.identifier.issn1094-4087
dc.identifier.urihttp://hdl.handle.net/11693/12352
dc.language.isoEnglishen_US
dc.publisherOptical Society of Americaen_US
dc.relation.isversionofhttp://dx.doi.org/10.1364/OE.20.006146en_US
dc.source.titleOptics Expressen_US
dc.subjectWavesen_US
dc.subjectLensen_US
dc.titleComposite chiral metamaterials with negative refractive index and high values of the figure of meriten_US
dc.typeArticleen_US
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