A self-verification temperature sensor based on surface plasmon resonance in a hollow core negative curvature fiber

被引:20
作者
Chen, Qiang
Chen, Hailiang [1 ]
Liu, Yundong
Wang, Yujun
Fan, Xiaoya
Bai, Ge
Zhang, Mengwei
Du, Huijing
机构
[1] Yanshan Univ, Sch Sci, State key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
基金
中国国家自然科学基金;
关键词
temperature sensor; surface plasmon resonance; hollow core negative curvature fiber; mixture of toluene and chloroform; self-verification; PHOTONIC CRYSTAL FIBER; GOLD;
D O I
10.1088/1361-6463/ac585c
中图分类号
O59 [应用物理学];
学科分类号
摘要
We proposed and simulated a surface plasmon resonance (SPR) temperature sensor with two loss peaks in a hollow core negative curvature fiber (HC-NCF). Inner walls of the anti-resonant tubes in HC-NCF were plated with gold films to stimulate SPR, while the thermo-optic mixture of toluene and chloroform was filled in the air holes in HC-NCF to modulate the coupling between core modes and surface plasmon polaron modes (SPPMs). Simulation results showed that two SPPMs with opposite thermo-optic respond effects were excited at two separate wavelength bands due to their different dispersion characteristics. Temperature measurement sensitivities of -3.976 nm degrees C-1 and 1.071 nm degrees C-1 were obtained for the two SPPMs, while the sensitivity reached -5.047 nm degrees C-1 when detected the wavelength interval between the two SPPMs loss peaks. The two separate loss peaks could also be utilized in self-verification. The designed temperature sensor based on HC-NCF and SPR depicts high sensitivity and self-verification, which could be utilized for high precision and stable temperature monitoring.
引用
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页数:11
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