All-dielectric optical nanoantennas
Date
2012
Authors
Krasnok, AE
Belov, Pavel A
Miroshnichenko, Andrey
Kivshar, Yuri
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Optical Society of America
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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Source
Optics Express
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Journal article
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Open Access
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