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

Chiaki Kuroda, Yoshimichi Ohki, Makoto Fujimaki

Research output: Contribution to journalArticlepeer-review

5 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

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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