A Nano Refractive Index Sensing Structure for Monitoring Hemoglobin Concentration in Human Body.
A Nano Refractive Index Sensing Structure for Monitoring Hemoglobin Concentration in Human Body.
复制标题
用于监测人体内血红蛋白浓度的纳米折射率传感结构
DOI:
10.3390/nano12213784
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发表时间:
2022-10-27
期刊:
影响因子:
--
通讯作者:
Ren Y
中科院分区:
文献类型:
--
作者:
Zhou G;Yan S;Chen L;Zhang X;Shen L;Liu P;Cui Y;Liu J;Li T;Ren Y
This paper proposes a nanosensor structure consisting of a metal–insulator–metal (MIM) waveguide with a rectangular root and a double-ring (SRRDR) with a rectangular cavity. In this paper, the cause and internal mechanism of Fano resonance are investigated by the finite element method (FEM), and the transport characteristics are optimized by changing various parameters of the structure. The results show that the structure can achieve double Fano resonance. Due to the destructive disturbance between the wideband mode of the inverted rectangle on the bus waveguide and the narrowband mode of the SRRDR, the output spectrum of the system shows an obvious asymmetric Fano diagram, and the structural parameters of the sensor have a great influence on the Fano resonance. By changing the sensitive parameters, the optimal sensitivity of the refractive index nanosensor is 2280 nm/RIU, and the coefficient of excellence (FOM) is 76.7. In addition, the proposed high-sensitivity nanosensor will be used to detect hemoglobin concentration in blood, which has positive applications for biosensors and has great potential for future nanosensing and optical integration systems.
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