TY - JOUR
T1 - Third-harmonic generation from Mie-type resonances of isolated all-dielectric nanoparticles
AU - Melik-Gaykazyan, Elizaveta V.
AU - Shcherbakov, Maxim R.
AU - Shorokhov, Alexander S.
AU - Staude, Isabelle
AU - Brener, Igal
AU - Neshev, Dragomir N.
AU - Kivshar, Yuri S.
AU - Fedyanin, Andrey A.
N1 - Publisher Copyright:
© 2017 The Author(s) Published by the Royal Society. All rights reserved.
PY - 2017/3/28
Y1 - 2017/3/28
N2 - 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'.
AB - 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'.
KW - Mie scattering
KW - Nonlinear optics
KW - Optical magnetism
KW - Silicon nanoparticles
KW - Third-harmonic generation
UR - http://www.scopus.com/inward/record.url?scp=85015008842&partnerID=8YFLogxK
U2 - 10.1098/rsta.2016.0281
DO - 10.1098/rsta.2016.0281
M3 - Article
SN - 1364-503X
VL - 375
JO - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
JF - Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
IS - 2090
M1 - 0281
ER -