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Superdirective all-dielectric nanoantennas: Theory and experiment

Belov, Pavel A; Krasnok, AE; Filonov, Dmitry S; Simovski, Constantin; Kivshar, Yuri


We introduce a novel concept of superdirective nanoantennas based on the generation of higherorder optically-induced magnetic multipoles. Such an all-dielectric nanoantenna can be realized as an optically small spherical dielectric nanoparticle with a notch excited by a point source located in the notch. We also confirm the predicted superdirectivity effect experimentally through scaling to the microwave frequency range.

CollectionsANU Research Publications
Date published: 2014
Type: Conference paper
Source: IOP Conference Series: Materials Science and Engineering
DOI: 10.1088/1757-899X/67/1/012008


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