Third- and second-harmonic generation microscopy of individual metal nanocones using cylindrical vector beams

Godofredo Bautista, Mikko J. Huttunen, Juha M. Kontio, Janne Simonen, Martti Kauranen

    Research output: Contribution to journalArticleScientificpeer-review

    29 Citations (Scopus)

    Abstract

    We demonstrate third- (THG) and second-harmonic generation (SHG) microscopy of individual silver nanocones using tightly focused cylindrical vector beams (CVBs). Although THG is expected to be a weaker process than SHG, the yield for THG with radial polarization was higher than for SHG. We also found an excellent correlation between the imaging properties of THG and SHG, suggesting that both are governed by the same overall features of the individual nanocone. We also found that the transverse spatial resolution of THG with CVBs, particularly RP, exceeds that of SHG. Our work establishes the potential of THG microscopy with CVBs for structure-sensitive imaging of three-dimensional (3D) metal nano-objects.
    Translated title of the contributionThird- and second-harmonic generation microscopy of individual metal nanocones using cylindrical vector beams
    Original languageEnglish
    Pages (from-to)21918-21923
    Number of pages6
    JournalOptics Express
    Volume21
    Issue number19
    DOIs
    Publication statusPublished - 10 Sep 2013
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 2

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