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

    3 Citations (Scopus)

    Abstract

    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
    Volume25
    Issue number21
    DOIs
    Publication statusPublished - 2017 Oct 16

    Fingerprint

    bioinstrumentation
    near fields
    illumination
    chips
    waveguides
    optimization
    surface plasmon resonance
    ultraviolet radiation
    marking
    glass
    sensors

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    Optimization of a waveguide-mode sensing chip for an ultraviolet near-field illumination biosensor. / Kuroda, Chiaki; Ohki, Yoshimichi; Fujimaki, Makoto.

    In: Optics Express, Vol. 25, No. 21, 16.10.2017, p. 26011-26019.

    Research output: Contribution to journalArticle

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