一种基于耦合T形谐振腔的高性能滤波与传感结构
High performance filtering and sensing structure based on coupled T-shaped resonator
本文介绍了一种由双矩形交叉连接，并与波导耦合的T形谐振腔结构，通过使用基于有限元法的COMSOL仿真软件对该结构进行了物理特性分析。仿真结果表明，该结构的透射谱图具有一个Fano峰和一个洛伦兹峰。接下来研究了结构参数对透射峰的影响。根据研究结果，可以发现该结构的FR和LR峰都具有优良的带通滤波效果。此外，通过破坏结构的对称性，激发了一个新的Fano共振峰。计算发现该共振峰的FOM值为210000，证明该结构传感性能优于大部分传感结构，可以应用为一种高性能的折射率传感器。
his paper introduces a T-shaped resonator structure which is cross connected by double rectangles and coupled with waveguide. By using COMSOL simulation software based on finite element method, the physical characteristics of the structure are analyzed. The simulation results show that the transmission spectrum of the structure has one Fano peak and one Lorentz peak. Next, the influence of structural parameters on the transmission peak is studied. According to the research results, it can be found that the FR and LR peaks of the structure have excellent band-pass filtering effect. In addition, a new Fano resonance peak is excited by breaking the symmetry of the structure. The FOM value of the FR resonance peak is 210000, it means that the sensing performance of this structure is better than most sensors, which can be used as a high-performance refractive index sensor.
孙卓越、王钰森、赵同刚
物理学光电子技术电子元件、电子组件
表面等离激元带通滤波器高FOM值传感器
Surface plasmonBandpass filterHigh FOM valueSensor
孙卓越,王钰森,赵同刚.一种基于耦合T形谐振腔的高性能滤波与传感结构[EB/OL].(2021-03-16)[2025-08-04].http://www.paper.edu.cn/releasepaper/content/202103-166.点此复制
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