%0 Journal Article
%T Broadband light coupling to dielectric slot waveguides with tapered plasmonic nanoantennas
%A Ivan S. Maksymov
%A Yuri S. Kivshar
%J Physics
%D 2013
%I arXiv
%R 10.1364/OL.38.004853
%X 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. 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 nanoantennas also allow for using them as ultrasmall on-chip multiplexer/demultiplexer devices.
%U http://arxiv.org/abs/1308.5043v1