Open AccessThird-harmonic generation from Mie-type resonances of isolated all-dielectric nanoparticles
Author(s) -
Elizaveta Melik-Gaykazyan,
Maxim R. Shcherbakov,
Alexander S. Shorokhov,
Isabelle Staude,
Igal Brener,
Dragomir N. Neshev,
Yuri S. Kivshar,
Andrey A. Fedyanin
Publication year - 2017
Publication title -
philosophical transactions of the royal society a mathematical physical and engineering sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.074
H-Index - 169
eISSN - 1471-2962
pISSN - 1364-503X
DOI - 10.1098/rsta.2016.0281
Subject(s) - dipole , nanophotonics , resonance (particle physics) , silicon , second harmonic generation , dielectric , mie scattering , excitation , nonlinear optics , molecular physics , physics , discrete dipole approximation , magnetic dipole , fano resonance , harmonic , condensed matter physics , materials science , optics , nonlinear system , optoelectronics , atomic physics , plasmon , light scattering , quantum mechanics , scattering , laser
Subwavelength silicon nanoparticles are known to support strongly localized Mie-type modes, including those with resonant electric and magnetic dipolar polarizabilities. Here we compare experimentally the efficiency of the third-harmonic generation from isolated silicon nanodiscs for resonant excitation at the two types of dipolar resonances. Using nonlinear spectroscopy, we observe that the magnetic dipolar mode yields more efficient third-harmonic radiation in contrast to the electric dipolar (ED) mode. This is further supported by full-wave numerical simulations, where the volume-integrated local fields and the directly simulated nonlinear response are shown to be negligible at the ED resonance compared with the magnetic one.This article is part of the themed issue 'New horizons for nanophotonics'.
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