Superdirective all-dielectric nanoantennas

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Conference article in proceedings
Date
2014
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Language
en
Pages
4
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2nd Radio and Antenna Days of the Indian Ocean (RADIO 2014), IOP Conference Series: Materials Science and Engineering, Volume 67
Abstract
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.
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Belov , P A , Krasnok , A E , Filonov , D S , Simovski , C R & Kivshar , Y S 2014 , Superdirective all-dielectric nanoantennas : Theory and experiment . in 2nd Radio and Antenna Days of the Indian Ocean (RADIO 2014) . , UNSP 012008 , IOP Conference Series: Materials Science and Engineering , vol. 67 , Institute of Physics Publishing , IEEE Radio and Antenna Days of the Indian Ocean , Flic-en-Flac , Mauritius , 07/04/2014 . https://doi.org/10.1088/1757-899X/67/1/012008