Nanoimprint fabrication of gold nanocones with ~10nm tips for enhanced optical interactions

J. Kontio, H. Husu, J. Simonen, M. Huttunen, J. Tommila, M. Pessa, M. Kauranen

    Research output: Contribution to journalArticleScientificpeer-review

    42 Citations (Scopus)
    19 Downloads (Pure)

    Abstract

    We show that nanoimprint lithography combined with electron-beam evaporation provides a cost-efficient, rapid, and reproducible method to fabricate conical nanostructures with very sharp tips on flat surfaces in high volumes. We demonstrate the method by preparing a wafer-scale array of gold nanocones with an average tip radius of 5 nm. Strong local fields at the tips enhance the second-harmonic generation by over 2 orders of magnitude compared with a nonsharp reference.
    Translated title of the contributionNanoimprint fabrication of gold nanocones with ~10nm tips for enhanced optical interactions
    Original languageEnglish
    Pages (from-to)1979-1981
    JournalOptics Letters
    Volume34
    Issue number13
    DOIs
    Publication statusPublished - 2009
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 2

    Fingerprint

    Dive into the research topics of 'Nanoimprint fabrication of gold nanocones with ~10nm tips for enhanced optical interactions'. Together they form a unique fingerprint.

    Cite this