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一种基于金属-绝缘体-金属波导耦合环形谐振器的折射率传感器。

A Refractive Index Sensor Based on a Metal-Insulator-Metal Waveguide-Coupled Ring Resonator.

作者信息

Yan Shu-Bin, Luo Liang, Xue Chen-Yang, Zhang Zhi-Dong

机构信息

Science and Technology on Electronic Test &Measurement Laboratory, North University of China, No.3 Xueyuan Road, Taiyuan 030051, China.

Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China, No.3 Xueyuan Road, Taiyuan 030051, China.

出版信息

Sensors (Basel). 2015 Nov 19;15(11):29183-91. doi: 10.3390/s151129183.

DOI:10.3390/s151129183
PMID:26610491
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4701327/
Abstract

A refractive index sensor composed of two straight metal-insulator-metal waveguides and a ring resonator is presented. One end of each straight waveguide is sealed and the other end acts as port. The transmission spectrum and magnetic field distribution of this sensor structure are simulated using finite-difference time-domain method (FDTD). The results show that an asymmetric line shape is observed in the transmission spectrum, and that the transmission spectrum shows a filter-like behavior. The quality factor and sensitivity are taken to characterize its sensing performance and filter properties. How structural parameters affect the sensing performance and filter properties is also studied.

摘要

提出了一种由两个直的金属-绝缘体-金属波导和一个环形谐振器组成的折射率传感器。每个直波导的一端是封闭的，另一端作为端口。采用时域有限差分法（FDTD）对该传感器结构的传输光谱和磁场分布进行了模拟。结果表明，在传输光谱中观察到不对称的线形，并且传输光谱呈现出类似滤波器的行为。采用品质因数和灵敏度来表征其传感性能和滤波特性。还研究了结构参数如何影响传感性能和滤波特性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/eebc90b93b09/sensors-15-29183-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/e7a6c92aef6c/sensors-15-29183-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/8173ffbfec73/sensors-15-29183-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/e0ebdb1a5390/sensors-15-29183-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/c842525fa657/sensors-15-29183-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/8284ff7b6d59/sensors-15-29183-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/acb16e7fa2d3/sensors-15-29183-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/3800df0a32e3/sensors-15-29183-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/eebc90b93b09/sensors-15-29183-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/e7a6c92aef6c/sensors-15-29183-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/8173ffbfec73/sensors-15-29183-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/e0ebdb1a5390/sensors-15-29183-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/c842525fa657/sensors-15-29183-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/8284ff7b6d59/sensors-15-29183-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/acb16e7fa2d3/sensors-15-29183-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/3800df0a32e3/sensors-15-29183-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c14b/4701327/eebc90b93b09/sensors-15-29183-g008.jpg

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