CAJ | 학술논문

提出了一种新型的半圆环回音壁模太赫兹传感器，用于对物质的电磁参数检测。其基本原理是在激励源频率给定的情况下，当被测物质的电磁参数发生变化时，对应的谐振频率也将偏移；谐振频率偏移越大，其敏感性越强。而通过在介质微环壁加载超电磁材料倏势波得到放大的特性可以提高对检测物质的敏感性。与现有文献的相关研究结果相比，该感传器的单位介电常数平均谐振频率偏移值提高约20倍。该装置激励更方便，结构更简单，易于集成，对于输入信号也易于控制，对于提高太赫兹传感器的敏感性，进而改进传感器的性能具有重要的意义。
제출료일충신형적반원배회음벽모태혁자전감기，용우대물질적전자삼수검측。기기본원리시재격려원빈솔급정적정황하，당피측물질적전자삼수발생변화시，대응적해진빈솔야장편이；해진빈솔편이월대，기민감성월강。이통과재개질미배벽가재초전자재료숙세파득도방대적특성가이제고대검측물질적민감성。여현유문헌적상관연구결과상비，해감전기적단위개전상수평균해진빈솔편이치제고약20배。해장치격려경방편，결구경간단，역우집성，대우수입신호야역우공제，대우제고태혁자전감기적민감성，진이개진전감기적성능구유중요적의의。
A new kind of terahertz sensor based on semi-ring WGM was presented in this paper, which is used to detect the electromagnetic parameters for some materials. The fundamental principle is that the corresponding resonant frequencies will be shifting as the electromagnetic parameters of measured materials are changed for the certain frequency of the input signal. At the same time, as the resonant frequencies offset more greatly, the sensitivity of sensor is stronger. When a layer of metamaterials is coated on the wall of the microring, the evanescent wave is amplified. Thus, the sensitivity is improved. Its average values of resonant frequency deviations per unit dielectric constant can be enhanced to more than twentyfold than traditional one. Moreover, it is more convenient to manufacture, integrate and easier to control the input signal by using a linear source compared with other methods reported. It has an important significance for improving the sensitivity of terahertz sensors and then ameliorating the performance of the sensor.