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

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Show simple item record Pita, Isabel A. Kumbham, Mahendar Schmidt, Michael Gleeson, Matthew Ryan, Kevin M. Silien, Christophe Liu, Ning 2018-07-16T13:30:39Z 2018
dc.description peer-reviewed en_US
dc.description.abstract The 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_US
dc.language.iso eng en_US
dc.publisher Optical Society of America en_US
dc.relation.ispartofseries Applied Optics;57 (22), pp. E50-E56
dc.rights This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. en_US
dc.subject waveguides en_US
dc.subject microstructure fabrication en_US
dc.subject surface plasmons en_US
dc.subject optoelectronics en_US
dc.title Surface plasmon propagation enhancement via bowtie antenna incorporation in au-mica block waveguides en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1364/AO.57.000E50
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor ERC en_US
dc.relation.projectid GOIPG/58/2013 en_US
dc.relation.projectid 13/CDA/2221 en_US 2019-06-18
dc.embargo.terms 2019-06-18 en_US
dc.rights.accessrights info:eu-repo/semantics/embargoedAccess en_US

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