| 太赫兹正六边形光子晶体光纤的液体传感 |
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| 引用本文： | 丁润琪,侯尚林,雷景丽,王道斌,李晓晓,王慧琴,曹明华.太赫兹正六边形光子晶体光纤的液体传感[J].发光学报,2019,40(2):272-276. |
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| 作者姓名： | 丁润琪 侯尚林 雷景丽 王道斌 李晓晓 王慧琴 曹明华 |
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| 作者单位： | 兰州理工大学 理学院,甘肃 兰州,730050;兰州理工大学 计算机与通信学院,甘肃 兰州,730050 |
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| 基金项目： | 国家自然科学基金（61665005）；甘肃省自然科学基金（7JR5RA132）资助项目 |
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| 摘 要： | 设计了一种分别填充水、酒精和苯炔等边三角形空气孔纤芯、包层空气孔排列为正六边形结构、以环烯烃共聚物作为基底材料的光子晶体光纤，利用有限元法模拟了0.3~1.5 THz频带内的液体传感特性。结果表明，设计的光子晶体光纤的灵敏度系数很高，当纤芯空气孔直径d1=2.4 μm、包层空气填充比为0.3时，苯炔在频率0.3 THz的相对灵敏性系数最高为37.63%，在1.5 THz，限制损耗的数量级可以降至10-7。
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| 关 键 词： | 光子晶体光纤 太赫兹 传感 灵敏度 限制损耗 |
| 收稿时间： | 2018-04-17 |
Liquid Sensing of Hexagonal Photonic Crystal Fibers for Terahertz Wave |
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| DING Run-qi,HOU Shang-lin,LEI Jing-li,WANG Dao-bin,LI Xiao-xiao,WANG Hui-qin,CAO Ming-hua.Liquid Sensing of Hexagonal Photonic Crystal Fibers for Terahertz Wave[J].Chinese Journal of Luminescence,2019,40(2):272-276. |
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| Authors: | DING Run-qi HOU Shang-lin LEI Jing-li WANG Dao-bin LI Xiao-xiao WANG Hui-qin CAO Ming-hua |
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| Institution: | 1. School of Science, Lanzhou University of Technology, Lanzhou 730050, China;
2. School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | A photonic crystal fiber with the cladding of circular air holes in hexagonal lattice structure and the core of circular air holes in equilateral triangle lattice structure based on cyclic-olefin copolymer is proposed, the liquid sensing characteristics of the PCF over 0.3-1.5 THz bands are investigated by finite element method. The proposed PCF demonstrates an ultrahigh sensitivity coefficient of 37.63% at 0.3 THz, and the confinement loss is low as the order 10 at frequency of 1.5 THz. The results offer reference for designing novel liquid sensors based on PCF at terahertz band. |
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| Keywords: | photonic crystal fiber terahertz sensing sensitivity confinement loss |
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