Terahertz Metamaterial Sensor Based on Electromagnetically Induced Transparency Effect  

作　　者：Shao-Xian Li Hong-Wei Zhao Jia-Guang Han 

机构地区：[1]Center for Terahertz wave,Key laboratory of Opto-electronic Information Science and Technology,Ministry of Education,College of Precision Instrument and Optoelectronics Engineering,Tianjin University [2]Key Laboratory of Interfacial Physics and Technology,Shanghai Institute of Applied Physics,Chinese Academy of Sciences

出　　处：《Journal of Electronic Science and Technology》2015年第2期117-121,共5页电子科技学刊（英文版）

基　　金：supported by the National Basic Research Program of China under Grant No.2014CB339800

摘　　要：A terahertz metamaterial sensor adopting the metamaterial-based electromagnetically induced transparency（EIT） effect is presented for determining the 1,4-dioxane concentration in its aqueous solution. The metamaterial sensor, which consists of an EIT element unit with a cut-wire metallic resonator and two split-ring metallic resonators fabricated on a 490-μm thick silicon substrate, operates in a transmission geometry. The EIT peak was red-shifted and decreased with the increase of the water volume. A maximum redshift about 54 GHz of the EIT peak was detected between the 1,4-dioxane and water. The presented linear behavior and high sensitivity of the EIT peak depending on the water concentration pave a novel avenue for sensor applications.A terahertz metamaterial sensor adopting the metamaterial-based electromagnetically induced transparency（EIT） effect is presented for determining the 1,4-dioxane concentration in its aqueous solution. The metamaterial sensor, which consists of an EIT element unit with a cut-wire metallic resonator and two split-ring metallic resonators fabricated on a 490-μm thick silicon substrate, operates in a transmission geometry. The EIT peak was red-shifted and decreased with the increase of the water volume. A maximum redshift about 54 GHz of the EIT peak was detected between the 1,4-dioxane and water. The presented linear behavior and high sensitivity of the EIT peak depending on the water concentration pave a novel avenue for sensor applications.

关 键 词：metallic terahertz resonator transparency determining fabrication split shifted aligned lithography 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]