Giant Nonlinear Response of Subwavelength Dielectric Resonators Enhanced by Bound States in the Continuum

K. L. Koshelev, L. Carletti, C. De Angelis, Yu S. Kivshar

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We reveal that nonlinear effects at the nanoscale can be enhanced by bound states in the continuum. We demonstrate SHG from subwavelength AlGaAs nanoantennas with record-high conversion efficiency that exceeds by two orders of magnitude the conversion efficiency observed at the conditions of magnetic dipole Mie resonances. This gain is achieved due to the engineering of the mode structure that allows exploiting a high-Q supercavity mode at the fundamental frequency. These results constitute a significant step towards the development of highly-efficient frequency conversion metadevices in the subwavelength circuitry.

    Original languageEnglish
    Title of host publication2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages580-584
    Number of pages5
    ISBN (Electronic)9784885523151
    DOIs
    Publication statusPublished - 31 Dec 2018
    Event2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Toyama, Japan
    Duration: 1 Aug 20184 Aug 2018

    Publication series

    NameProgress in Electromagnetics Research Symposium
    Volume2018-August
    ISSN (Print)1559-9450
    ISSN (Electronic)1931-7360

    Conference

    Conference2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018
    Country/TerritoryJapan
    CityToyama
    Period1/08/184/08/18

    Fingerprint

    Dive into the research topics of 'Giant Nonlinear Response of Subwavelength Dielectric Resonators Enhanced by Bound States in the Continuum'. Together they form a unique fingerprint.

    Cite this