Abstract
Strong Mie-type magnetic dipole resonances in all-dielectric nanostructures provide novel opportunities for enhancing nonlinear effects at the nanoscale due to the intense electric and magnetic fields trapped within the individual nanoparticles. Here we study third-harmonic generation from quadrumers of silicon nanodisks supporting high-quality collective modes associated with the magnetic Fano resonance. We observe nontrivial wavelength and angular dependencies of the generated harmonic signal featuring a multifold enhancement of the nonlinear response in oligomeric systems.
Original language | English |
---|---|
Pages (from-to) | 4857-4861 |
Number of pages | 5 |
Journal | Nano Letters |
Volume | 16 |
Issue number | 8 |
DOIs | |
Publication status | Published - 10 Aug 2016 |