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19 April 2024

» arxiv » 1411.2768

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All-dielectric optical nanoantennas (Review)
Alexandr E. Krasnok ; Pavel A. Belov ; Andrey E. Miroshnichenko ; Arseniy I. Kuznetsov ; Boris S. Luk'yanchuk ; Yuri S. Kivshar ;
Date:	11 Nov 2014
Abstract:	We propose a new type of highly efficient Yagi-Uda nanoantenna and introduced a novel concept of superdirective nanoantennas based on silicon nanoparticles. In addition to the electric response, this silicon nanoantennas exhibit very strong magnetic resonances at the nanoscale. Both types of nanoantennas are studied analytically, numerically and experimentally. For superdirective nanoantennas we also predict the effect of the beam steering at the nanoscale characterized by a subwavelength sensitivity of the beam radiation direction to the source position.
Source:	arXiv, 1411.2768
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