Multifold Enhancement of Third-Harmonic Generation in Dielectric Nanoparticles Driven by Magnetic Fano Resonances

Alexander S. Shorokhov, Elizaveta V. Melik-Gaykazyan, Daria A. Smirnova, Ben Hopkins, Katie E. Chong, Duk Yong Choi, Maxim R. Shcherbakov, Andrey E. Miroshnichenko, Dragomir N. Neshev, Andrey A. Fedyanin, Yuri S. Kivshar*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    194 Citations (Scopus)

    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 languageEnglish
    Pages (from-to)4857-4861
    Number of pages5
    JournalNano Letters
    Volume16
    Issue number8
    DOIs
    Publication statusPublished - 10 Aug 2016

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