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Broadband light coupling to dielectric slot waveguides with tapered plasmonic nanoantennas

Maksymov, I S; Kivshar, Yu S


We propose and theoretically verify an efficient mechanism of broadband coupling between incident light and on-chip dielectric slot waveguide by employing a tapered plasmonic nanoantenna. The nanoantenna receives free space radiation and couples it to a dielectric slot waveguide with the efficiency of up to 20% in a broad spectral range, having a small footprint as compared with the currently used narrowband dielectric grating couplers. We argue that the frequency selective properties of such...[Show more]

CollectionsANU Research Publications
Date published: 2013-11-15
Type: Journal article
Source: Optics letters
DOI: 10.1364/OL.38.004853


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