Enhanced second-harmonic generation with structured light in AlGaAs nanoparticles governed by magnetic response
Optics
2019-02-20 v1
Abstract
We employ structured light for the second-harmonic generation from subwavelength AlGaAs nanoparticles that support both electric and magnetic multipolar Mie resonances. The vectorial structure of the pump beam allows addressing selectively Mie-resonant modes and control the strength of the generated nonlinear fields. We observe experimentally the enhancement of the second-harmonic generation for the azimuthally polarized vector beams near magnetic dipole resonance, and match our observations with the numerical decomposion of the Mie-type multipoles for the fundamental and generated second-harmonic fields
Keywords
Cite
@article{arxiv.1811.08680,
title = {Enhanced second-harmonic generation with structured light in AlGaAs nanoparticles governed by magnetic response},
author = {Elizaveta V. Melik-Gaykazyan and Kirill L. Koshelev and Jae-Hyuck Choi and Sergey S. Kruk and Hong-Gyu Park and Andrey A. Fedyanin and Yuri S. Kivshar},
journal= {arXiv preprint arXiv:1811.08680},
year = {2019}
}
Comments
5 pages, 4 figures, submitted to JETP Letters