Enhanced Magnetic Second-Harmonic Generation from Resonant Metasurfaces

Sergey Kruk*, Martin Weismann, Anton Yu Bykov, Evgeniy A. Mamonov, Irina A. Kolmychek, Tatiana Murzina, Nicolae C. Panoiu, Dragomir N. Neshev, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    113 Citations (Scopus)

    Abstract

    We study, both experimentally and theoretically, the second-order nonlinear response from resonant metasurfaces composed of metal-dielectric nanodisks. We demonstrate that by exciting the resonant optical modes of the composite nanoparticles we can achieve strong enhancement of the second-harmonic signal from the metasurface. By employing a multipole expansion method for the generated second-harmonic radiation, we show that the observed SHG enhancement is due to the magnetic dipolar and electric quadrupolar second-order nonlinear response of the metasurface.

    Original languageEnglish
    Pages (from-to)1007-1012
    Number of pages6
    JournalACS Photonics
    Volume2
    Issue number8
    DOIs
    Publication statusPublished - 19 Aug 2015

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