Enhancement of Second-Harmonic Generation from Metal Nanoparticles by Passive Elements

Robert Czaplicki, Hannu Husu, Roope Siikanen, Jouni Mäkitalo, Martti Kauranen, Janne Laukkanen, Joonas Lehtolahti, Markku Kuittinen

    Research output: Contribution to journalArticleScientificpeer-review

    128 Citations (Scopus)
    97 Downloads (Pure)

    Abstract

    We prepare arrays of gold nanoparticles that include both noncentrosymmetric particles with a second-order nonlinear optical response (active particles) and centrosymmetric particles with no second-order response (passive particles). The plasmon resonances of the active and passive particles are at distinct wavelengths, yet the passive particles modify the electromagnetic modes of the structure in such a way that second-harmonic generation from the active particles is enhanced. Our results provide a completely new concept for optimizing the nonlinear responses of metamaterials.
    Translated title of the contributionEnhancement of Second-Harmonic Generation from Metal Nanoparticles by Passive Elements
    Original languageEnglish
    Article number093902
    Pages (from-to)1-5
    Number of pages5
    JournalPhysical Review Letters
    Volume110
    Issue number9
    DOIs
    Publication statusPublished - 2013
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 3

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