Chirality arising from small defects in gold nanoparticle arrays

B.K. Canfield, S. Kujala, K. Laiho, K. Jefimovs, J. Turunen, M. Kauranen

    Research output: Contribution to journalArticleScientificpeer-review

    95 Citations (Scopus)
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    The symmetry of metal nanostructures may be broken by their overall features or small-scale defects. To separate the roles of these two mechanisms in chiral symmetry breaking, we prepare gold nanostructures with chirality occurring on different levels. Linear optical measurements reveal small chiral signatures, whereas the chiral responses from second-harmonic generation are enormous. The responses of all structures are remarkably similar, suggesting that uncontrollable defects play an important role in symmetry breaking.
    Translated title of the contributionChirality arising from small defects in gold nanoparticle arrays
    Original languageEnglish
    Pages (from-to)950-955
    JournalOptics Express
    Issue number2
    Publication statusPublished - 2006
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 2


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