• Photonic Sensors
  • Vol. 7, Issue 2, 105 (2017)
Chunliu ZHAO*, Yanru WAN, Dongning WAN, and Zhewen DIN
Author Affiliations
  • Institute of Optoelectronic Technology, China Jiliang University, Hangzhou, 310018, China
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    DOI: 10.1007/s13320-017-0359-7 Cite this Article
    Chunliu ZHAO, Yanru WAN, Dongning WAN, Zhewen DIN. Numerical Investigation Into a Surface Plasmon Resonance Sensor Based on Optical Fiber Microring[J]. Photonic Sensors, 2017, 7(2): 105 Copy Citation Text show less

    Abstract

    A reflective surface plasmon resonance (SPR) sensor based on optical fiber microring is proposed. In such a sensor, plasmons on the outer surface of the metallized channels containing analyte can be excited by a fundamental mode of a thin-core fiber (TCF). The refractive index (RI) sensing can be achieved as the surface plasmons are sensitive to changes in the refrective index of the analyte. Numerical simulation results show that the resonance spectrum shifts toward the shorter wavelength gradually when the analyte refractive index increases from 1.0 to 1.33, whereas it shifts toward the longer wavelength gradually when the analyte refractive index increases from 1.33 to 1.43, and there is a turning point at the refractive index value of 1.33. The highest sensitivity achieved is up to 2.30×103nm/RIU near the refractive index value of 1.0. Such a compact sensor has potential for gaseous substance monitoring.
    Chunliu ZHAO, Yanru WAN, Dongning WAN, Zhewen DIN. Numerical Investigation Into a Surface Plasmon Resonance Sensor Based on Optical Fiber Microring[J]. Photonic Sensors, 2017, 7(2): 105
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