All-dielectric optical nanoantennas

Alexander E. Krasnok; Andrey E. Miroshnichenko; Pavel A. Belov; Yuri S. Kivshar

doi:10.1364/OE.20.020599

All-dielectric optical nanoantennas

Alexander E. Krasnok^*, Andrey E. Miroshnichenko, Pavel A. Belov, Yuri S. Kivshar

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

506 Citations (Scopus)

Abstract

We study in detail a novel type of optical nanoantennas made of high-permittivity low-loss dielectric particles. In addition to the electric resonances, the dielectric particles exhibit very strong magnetic resonances at the nanoscale, that can be employed in the Yagi-Uda geometry for creating highly efficient optical nanoantennas. By comparing plasmonic and dielectric nanoantennas, we demonstrate that all-dielectric nanoantennas may exhibit better radiation efficiency also allowing more compact design.

Original language	English
Pages (from-to)	20599-20604
Number of pages	6
Journal	Optics Express
Volume	20
Issue number	18
DOIs	https://doi.org/10.1364/OE.20.020599
Publication status	Published - 27 Aug 2012

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abstract = "We study in detail a novel type of optical nanoantennas made of high-permittivity low-loss dielectric particles. In addition to the electric resonances, the dielectric particles exhibit very strong magnetic resonances at the nanoscale, that can be employed in the Yagi-Uda geometry for creating highly efficient optical nanoantennas. By comparing plasmonic and dielectric nanoantennas, we demonstrate that all-dielectric nanoantennas may exhibit better radiation efficiency also allowing more compact design.",

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AU - Belov, Pavel A.

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AB - We study in detail a novel type of optical nanoantennas made of high-permittivity low-loss dielectric particles. In addition to the electric resonances, the dielectric particles exhibit very strong magnetic resonances at the nanoscale, that can be employed in the Yagi-Uda geometry for creating highly efficient optical nanoantennas. By comparing plasmonic and dielectric nanoantennas, we demonstrate that all-dielectric nanoantennas may exhibit better radiation efficiency also allowing more compact design.

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All-dielectric optical nanoantennas

Abstract

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