An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator
An Optical MIM Pressure Sensor Based on a Double Square Ring Resonator
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DOI：
10.1007/s13320-018-0491-z
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发表时间：
2018-09-01
期刊：
影响因子：
4.4
通讯作者：
Seifouri, Mahmood
中科院分区：
文献类型：
--
作者：
Palizvan, Pardis;Olyaee, Saeed;Seifouri, Mahmood
在本文中，我们提出了一种金属-绝缘体-金属（MIM）压力传感器，它由两个等离子体波导和一个双方环谐振器组成。两个方形环通过位于两个方形环之间的矩形贴片连接。表面等离子体激元（SPP）可以通过这个贴片从一个方形环转移到另一个方形环。时域有限差分法（FDTD）已用于对该装置进行仿真。对该结构施加压力，它就会变形，并且计算出共振波长的红移为 103 nm。在很宽的波长范围内，变形与波长偏移成线性比例。所提出的光学等离子体压力传感器的灵敏度为16.5 nm/MPa，非常适合在生物和生物医学工程中使用。
In this paper, we have proposed a metal-insulator-metal (MIM) pressure sensor which consists of two plasmonic waveguides and a double square ring resonator. The two square rings are connected via a rectangular patch located between the two of them. The surface plasmon polaritons (SPPs) can be transferred from a square ring to the other through this patch. The finite-difference time-domain method (FDTD) has been used to simulate the device. Applying a pressure on the structure, it deforms, and a red shift of 103 nm in the resonance wavelength has been calculated. The deformation is linearly proportional to the wavelength shift in a wide range of wavelength. The proposed optical plasmonic pressure sensor has a sensitivity of 16.5 nm/MPa which makes it very suitable for using in biological and biomedical engineering.