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Bidirectional waveguide coupling with plasmonic Fano nanoantennas

Guo, Rui; Decker, Manuel; Staude, Isabelle; Neshev, Dragomir N.; Kivshar, Yuri S.


We introduce the concept of a bidirectional, compact single-element Fano nanoantenna that allows for directional coupling of light in opposite directions of a high-index dielectric waveguide for two different operation wavelengths. We utilize a Fano resonance to tailor the radiation phases of a gold nanodisk and a nanoslit that is inscribed into the nanodisk to realize bidirectional scattering. We show that this Fano nanoantenna operates as a bidirectional waveguide coupler at telecommunication...[Show more]

CollectionsANU Research Publications
Date published: 2014-08-08
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.4892651


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