High-sensitivity photonic crystal fiber sensor based on surface plasmon resonance  

作　　者：FENG Huanting GAO Jiachen MING Xianbing 

机构地区：[1]School of Physical Science and Technology,Tiangong University,Tianjin 300387,China1

出　　处：《Optoelectronics Letters》2024年第7期393-399,共7页光电子快报（英文版）

基　　金：supported by the Natural Science Foundation of Tianjin City(No.19JCYBJC17000);the National Natural Science Foundation of China(No.11905159).

摘　　要：In this paper,we propose a photonic crystal fiber(PCF)sensor based on the surface plasmonic resonance(SPR)effect for simultaneous temperature and refractive index(RI)measurement.The coupling characteristics and sensing performance of the sensor are analyzed using the full vector finite element method(FEM).The sensor provides two channels for independent measurement of RI and temperature.When operating independently,channel I supports y-polarized light with a sensitivity of up to 7000 nm/RIU for detecting RI,while channel II supports x-polarized light with a sensitivity of up to 16 nm/℃for detecting temperature.Additionally,we investigate the influence of gold layer thickness on the sensing performance to optimize the sensor.

关 键 词：TEMPERATURE MEASUREMENT FIBER 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]