基于石墨烯光子晶体光纤的流体传感器.pdf

物 理 化 学 学 报 Acta Phys. -Chim. Sin. 2022, 38 (X), 2108041 (1 of 7) [Article] doi: 10.3866/PKU.WHXB202108041 Graphene Photonic Crystal Fiber-Based Fluid Sensor Toward Distributed Environmental Monitoring Nianze Shang 1,2, Yi Cheng 2,3 , Shen Ao 4 , Gulimire Tuerdi 4 , Mengwen Li 2 , Xiaoyu Wang 1, Hao Hong 1, Zehui Li 1, Xiaoyan Zhang 4,* , Wangyang Fu 4,* , Kaihui Liu 1,5,*, Zhongfan Liu 2,3,* 1 State Key Laboratory for Mesoscopic Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China. 2 Beijing Graphene Institute (BGI), Beijing 100095, China. 3 Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. 4 School of Material Science and Engineering, Tsinghua University, Beijing 100084, China. 5 Frontiers Science Center for Nano-optoelectronics, Collaborative Innovation Center of Quantum Matter, School of Physics, Peking University, Beijing 100871, China. Abstract: Compared to traditional sensor device arrays, optical fiber systems capable of wide-range detection are gradually emerging as strong candidates for distributed monitoring owing to their simplified structure. However, the working mechanism of optical fiber sensors limits their use to the detection of physical parameters such as refractive index and is an obstacle for the detection of small doses of molecules by optical fiber systems. Several researchers have focused on this aspect to endow sensitivity to these optical fibers for gas or liquid molecules. By deliberately destroying the fiber structure, strong interactions between the evanescent field of optical fibers and the target materials, such as microfiber