Optimization of a waveguide-mode sensing chip for an ultraviolet near-field illumination biosensor

Chiaki Kuroda, Yoshimichi Ohki, Makoto Fujimaki

    Research output: Contribution to journalArticle

    4 Citations (Scopus)


    A waveguide-mode sensor with a planar sensing chip, consisting of two waveguiding layers and a glass substrate, is a promising candidate for a near-field illumination biosensor. Aiming at using fluorescent labeling induced by ultraviolet light, we optimize the structure of a waveguide-mode sensing chip, based on the mechanism for enhancing ultraviolet near-field light revealed by numerical calculations. Candidates of optimal materials are also presented. The chip optimized as above should be able to enhance the intensity of ultraviolet near-field light 25 times as high as an Al surface plasmon resonance sensing chip.

    Original languageEnglish
    Pages (from-to)26011-26019
    Number of pages9
    JournalOptics Express
    Issue number21
    Publication statusPublished - 2017 Oct 16


    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this