@article{10902/31449,
year = {2017},
url = {https://hdl.handle.net/10902/31449},
abstract = {Due to the presence of strong magnetic resonances, high refractive index dielectric nanoantennnas have shown the ability to expand the methods available for controlling electromagnetic waves in the subwavelength region. In this work, we experimentally demonstrate that an asymmetric dielectric dimer made of silicon can lead to highly directional scattering depending on the excitation wavelength, due to the interference of the excited magnetic resonances. A back focal plane imaging system combined with a prism coupling technique enables us to explore the scattering profile parallel to the substrate. The directivity of scattering along the substrate is high enough to produce selective guiding of light along the substrate. These results showing tunable control of directional scattering will encourage the realization of novel optical applications, such as optical nanocircuitry.},
organization = {The authors acknowledge funding provided by grants of the EPSRC Reactive Plasmonics Programme EP/MO13812/1, the Leverhulme Trust (UK), ONR Global, and the U.S. Army Transatlantic Research Office. S.A.M. further acknowledges the Lee-Lucas Chair, and P.A. acknowledges Programa “Viera y Clavijo” de la Agencia Canaria de Investigación, Innovación y Sociedad de la Información (ACIISI) y la Universidad de las Palmas de Gran Canaria (ULPGC). The work in Canada was supported by the Natural Sciences and Engineering Research Council under its Discovery Grants Program.},
publisher = {American Chemical Society},
publisher = {ACS Photonics 2017, 4(3), 489-494},
title = {Experimental demonstration of tunable directional scattering of visible light from all-dielectric asymmetric dimers},
author = {Shibanuma, Toshihiko and Matsui, Takayuki and Roschuk, Tyler and Wojcik, Jacek and Mascher, Peter and Albella Echave, Pablo and Maier, Stefan A.},
}