Surface plasmon propagation enhancement via bowtie antenna incorporation in Au-mica block waveguides

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dc.check.date2019-06-18
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorPita, Isabel A.
dc.contributor.authorKumbham, Mahendar
dc.contributor.authorSchmidt, Michael
dc.contributor.authorGleeson, Matthew
dc.contributor.authorRyan, Kevin M.
dc.contributor.authorSilien, Christophe
dc.contributor.authorLiu, Ning
dc.contributor.funderIrish Research Councilen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2018-09-21T10:58:48Z
dc.date.available2018-09-21T10:58:48Z
dc.date.issued2018-06-18
dc.date.updated2018-09-20T08:17:34Z
dc.description.abstractThe optimum geometry for waveguide propagation was determined by comparing bowtie and semicircle antenna cuts to a standard plain waveguide with a 635 nm laser. The results of both experimental data and COMSOL simulations proved that the bowtie antenna increased waveguide output in comparison to the plain waveguide with the semicircle pattern showing no enhancement. It was also determined that the propagation was highest when the polarization direction of the laser was perpendicular to the direction of the waveguide for all patterns, while polarization along the propagation direction led to little or no output in all antenna and plain waveguide cases. The waveguide output of the bowtie antenna and plain structures was then measured using a tunable laser for wavelengths from 570 nm to 958 nm under both parallel and perpendicular polarization conditions. The results indicated that the bowtie antenna performed better over the entire range with an average increase factor of 2.12±0.40 over the plain waveguide pattern when perpendicularly polarized to the waveguide direction, and 1.10±0.48 when parallel. The measured values indicate that the structure could have applications in broadband devices.en
dc.description.sponsorshipIrish Research Council (GOIPG/58/2013; INSPIRE)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPita, I. A., Kumbham, M., Schmidt, M., Gleeson, M., Ryan, K. M., Silien, C. and Liu, N.(2018) 'Surface plasmon propagation enhancement via bowtie antenna incorporation in Au-mica block waveguides', Applied Optics, 57(22), pp. 50-56. doi:10.1364/AO.57.000E50en
dc.identifier.doi10.1364/AO.57.000E50
dc.identifier.endpage56en
dc.identifier.issn1559-128X
dc.identifier.issn2155-3165
dc.identifier.issued22en
dc.identifier.journaltitleApplied Opticsen
dc.identifier.startpage50en
dc.identifier.urihttps://hdl.handle.net/10468/6864
dc.identifier.volume57en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Career Development Award/13/CDA/2221/IE/Nonlinear optical micro-spectroscopy for multiplex suspension immunoassay/en
dc.rights© 2018, Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.en
dc.subjectMicrostructure fabricationen
dc.subjectOptoelectronicsen
dc.subjectWaveguidesen
dc.subjectSurface plasmonsen
dc.subjectElectric fieldsen
dc.subjectLaser lighten
dc.subjectLight wavelengthen
dc.subjectTunable lasersen
dc.subjectWave platesen
dc.titleSurface plasmon propagation enhancement via bowtie antenna incorporation in Au-mica block waveguidesen
dc.typeArticle (peer-reviewed)en
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