title: Grapefruit fiber filled with silver nanowires surface plasmon resonance sensor in aqueous environments.
abstract: A kind of surface plasmon resonance sensor based on grapefruit photonic crystal fiber (PCF) filled with different numbers of silver nanowires has been studied in this paper. The surface plasmon resonance modes and the sensing properties are investigated comprehensively using the finite element method (FEM). The simulation results show that the intensity sensitivity is related to nanowire numbers and the distance between two nanowires. The optimum value obtained is 2,400 nm/RIU, corresponding to a resolution of 4.51 × 10(-5) RIU with a maximum distance of 2 μm. To a certain extent, the PCF filled with more nanowires is better than with just one. Furthermore, the air holes of grapefruit PCF are large enough to operate in practice. Moreover, the irregularity of the filled nanowires has no effect on sensitivity, which will be very convenient for the implementation of experiments.
authors.affiliation: College of Precision Instrument and Opto-electronics Engineering, Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China. luying@tju.edu.cn
authors.forename: Ying
authors.initials: Y
authors.lastname: Lu
authors.forename: Cong-Jing
authors.initials: CJ
authors.lastname: Hao
authors.forename: Bao-Qun
authors.initials: BQ
authors.lastname: Wu
authors.forename: Xiao-Hui
authors.initials: XH
authors.lastname: Huang
authors.forename: Wu-Qi
authors.initials: WQ
authors.lastname: Wen
authors.forename: Xiang-Yong
authors.initials: XY
authors.lastname: Fu
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Yao
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation*; D032083:Citrus paradisi / Q000737:chemistry*; D004867:Equipment Design / Q000295:instrumentation*; D005336:Fiber Optic Technology / Q000295:instrumentation*; D053770:Nanowires / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D012834:Silver
keywords: grapefruit photonic crystal fiber; nanowire distance and number; silver nanowire; surface plasmon resonance