High sensitivity plasmonic temperature sensor based on a side-polished photonic crystal fiber

被引：12
作者：
Gao, Zhigang [1 ,2 ]
Jing, Xili [1 ,2 ]
Liu, Yundong [1 ,2 ]
Chen, Hailiang [1 ,2 ]
Li, Shuguang [1 ,2 ]
机构：
[1] Yanshan Univ, Sch Sci, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
[2] Yanshan Univ, Sch Sci, Key Lab Microstruct Mat Phys Hebei Prov, Qinhuangdao 066004, Hebei, Peoples R China
来源：
CHINESE PHYSICS B | 2022年 / 31卷 / 02期
基金：
中国国家自然科学基金;
关键词：
photonic crystal fiber; sensors; surface plasmon; RESONANCE SENSORS; OPTICAL-FIBER; CORE;
D O I：
10.1088/1674-1056/ac0a63
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A high sensitivity plasmonic temperature sensor based on a side-polished photonic crystal fiber is proposed in this work. In order to achieve high sensitivity and high stability, the gold layer is coated on the side-polished photonic crystal fiber to support surface plasmon resonance. The mixture of ethanol and chloroform is used as the thermosensitive liquid. The performances of the proposed temperature sensor were investigated by the finite element method (FEM). Simulation results indicate that the sensitivity of the temperature sensor is as high as 7.82 nm/degrees C. It has good linearity (R (2) = 0.99803), the resolution of 1.1 x 10(-3) degrees C, and the amplitude sensitivity of 0.1008 degrees C-1. In addition, the sizes of the small air hole and polishing depth have little influence on the sensitivity. Therefore, the proposed sensor shows a high structure tolerance. The excellent performance and high structure tolerance of the sensor make it an appropriate choice for temperature measurement.
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页数：7
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