All-Dielectric Optical Nanoantennas
Optics
2015-06-05 v1
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.
Cite
@article{arxiv.1206.5597,
title = {All-Dielectric Optical Nanoantennas},
author = {Alexander E. Krasnok and Andrey E. Miroshnichenko and Pavel A. Belov and Yuri S. Kivshar},
journal= {arXiv preprint arXiv:1206.5597},
year = {2015}
}