Enhanced Third-Harmonic Generation in Silicon Nanoparticles Driven by Magnetic Response

2014624 citationsJournal Article

Authors

Maxim R. Shcherbakov · Lomonosov Moscow State University

Dragomir N. Neshev · Australian National University

Ben Hopkins · Australian National University

Alexander S. Shorokhov · Lomonosov Moscow State University

Isabelle Staude · Australian National University

Elizaveta Melik-Gaykazyan · Lomonosov Moscow State University

Manuel Decker

Abstract

We observe enhanced third-harmonic generation from silicon nanodisks exhibiting both electric and magnetic dipolar resonances. Experimental characterization of the nonlinear optical response through third-harmonic microscopy and spectroscopy reveals that the third-harmonic generation is significantly enhanced in the vicinity of the magnetic dipole resonances. The field localization at the magnetic resonance results in two orders of magnitude enhancement of the harmonic intensity with respect to unstructured bulk silicon with the conversion efficiency limited only by the two-photon absorption in the substrate.

Topics & Keywords

Plasmonic and Surface Plasmon Research Photonic and Optical Devices Photonic Crystals and Applications

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Nano Letters

Volume 14, Issue 11, pp. 6488-6492

DOI: 10.1021/nl503029j

Field-Weighted Citation Impact: 33.39