Simultaneous suppression of forward and backward light scattering by high-index nanoparticles based on Kerker-like effects

H. K. Shamkhi, K. V. Baryshnikova, A. Sayanskiy, P. Kapitanova, P. D. Terekhov, P. Belov, A. Karabchevsky, A. B. Evlyukhin*, Y. Kivshar, A. S. Shalin

*Kontaktforfatter for dette arbejde

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Abstrakt

The ability of all-dielectric nanostructures to perform exotic photonics effects is with superior efficiency compared to their metallic counterparts. Free from joules losses, high-index dielectrics support comparable excitation of electric and magnetic resonances and pave a way to advanced technologies of light energy manipulation. One of the most important effects is directive light scattering provided by the Kerker and anti-Kerker effects giving the potential to realize Huygens source of light, transparent metasurfaces, router nanoantennas etc. Here we study an effect where most of the scattered power is redirected to the side directions rather than to the forward and/or backward directions. This kind of scattering on isotropic scatterer requires at least the presence of the first two orders of multipoles to enable simultaneous forward and back-scattering suppressions. Electric dipole Fano resonance profile and quadrupoles off-resonance characteristics provide the required phase and amplitude conditions to obtain such an optical signature. We find the individual scatterers sustain the transverse scattering conditions when assembled into a metasurface so exhibit invisibility effect. We investigate this phenomenon analytically and numerically in the visible and microwave domains and provide the proof-of-the-concept experiment in the gigahertz frequency and showing very good agreement with the theoretical predictions.

OriginalsprogEngelsk
Artikelnummer012158
BogserieJournal of Physics: Conference Series
Vol/bind1461
Udgave nummer1
Antal sider5
ISSN1742-6588
DOI
StatusUdgivet - 2020
Begivenhed4th International Conference on Metamaterials and Nanophotonics, METANANO 2019 - St. Petersburg, Rusland
Varighed: 15. jul. 201919. jul. 2019

Konference

Konference4th International Conference on Metamaterials and Nanophotonics, METANANO 2019
LandRusland
BySt. Petersburg
Periode15/07/201919/07/2019
SponsorBruker, INSCIENCE

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