A selectively coated photonic crystal fiber based surface plasmon resonance sensor

Research output: Research - peer-reviewJournal article – Annual report year: 2010

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We propose a novel design for a photonic crystal fiber based surface plasmonic resonance sensor. The sensor consists of selectively metal-coated air holes containing analyte channels, which enhance the phase matching between the plasmonic mode and the core-guided mode. Good refractive index sensitivity as high as 5500 nm/RIU (refractive index unit) can be achieved in the proposed structure. Compared with the entirely coated structure, the selectively coated sensor design demonstrates narrower resonance spectral width. Moreover, the greater resonance depth can improve the sensing performance in terms of signal to noise ratio (SNR). The improvements in spectral width and SNR can both contribute to a better detection limit for this refractive index sensor.
Original languageEnglish
JournalJournal of Optics A: Pure and Applied Optics (Print)
Volume12
Issue number1
Pages (from-to)15005
ISSN2040-8978
DOIs
StatePublished - 2010
CitationsWeb of Science® Times Cited: 102

    Research areas

  • surface plasmon, photonic crystal fiber, refractive index sensor
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