Improving plasmonic waveguides coupling efficiency using nanoantennas

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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Plasmonic waveguides bear a lot of potential for photonic applications. However, one of the challenges for implementing them in devices is the low coupling efficiency to and from optical fibers. We report on our approach to facilitate the coupling efficiency with the use of metallic nanoantennas. The classical dipole antenna scheme can be improved by changing the nanoantenna geometry, adding constructive elements such as reflecting bars and mirrors and using arrays of antennas. The modelling designates that the coupling efficiency from a vertical fiber to a plasmonic waveguide can be improved more than in 180 times in comparison with a direct fiber-waveguide coupling. Pros and cons of each configuration are discussed. Fabrication and characterisation results are reported.
Original languageEnglish
Title of host publication2012 14th International Conference on Transparent Optical Networks (ICTON)
Number of pages4
PublisherIEEE
Publication date2012
ISBN (print)978-1-4673-2228-7
ISBN (electronic)978-1-4673-2227-0
DOIs
StatePublished

Conference

Conference14th International Conference on Transparent Optical Networks (ICTON)
CountryUnited Kingdom
CityCoventry
Period02/07/1205/07/12
Internet addresshttp://www.nit.eu/icton-2012
CitationsWeb of Science® Times Cited: No match on DOI

Keywords

  • Coupler, Nanocoupling, Plasmonic antenna, Nanoantenna, Plasmonic waveguides
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