【作者】 张蓉； 肖怀宝； 逯贵祯；

【Author】 ZHANG Rong;XIAO Huai-bao;Lu Gui-zhen;School of information and communication engineering,Communication University of China;

【机构】 中国传媒大学信息与通信工程学院；

【摘要】 本文提出了一种具有倾斜槽结构的太赫兹类表面等离子体结构,提高了传感检测灵敏度。基于有限元方法对该结构的几何参数进行了优化,利用COMSOL数值模拟了待测物质不同折射率下对应的反射光谱。研究结果表明,当待测物质折射率nd由1.0变化至1.04时,折射率灵敏度S高达4.9—18.2 THz/RIU,FOM值达到208—546,该研究在气体传感检测领域具有潜在应用价值。更多还原

【Abstract】 This paper presents a structure of terahertz spoof surface plasma ploaritons(SPPs) with a slanted groove.The geometric parameters of this structure are optimized based on the finite element method(FEM),the reflection spectrum of material refractive index to be detected is numerical simulated by the use of COMSOL.The results show that when the material refractive index to be detected varies from 1.0 to 1.04,the sensitivity S is up to 4.9—18.2 THz/RIU,and FOM reach to 208—546,this research has potential applications in the field of gas sensing and detection.更多还原