激光与光电子学进展, 2019, 56 (20): 202411, 网络出版: 2019-10-22
基于Au/Ce∶YIG/TiN结构的磁光表面等离激元共振及折射率传感器研究 下载: 1334次
Magneto-Optical Surface Plasmon Resonance and Refractive Index Sensor Based on Au/Ce∶YIG/TiN Structure
图 & 表
图 2. 反射率与波长、结构尺寸的关系。(a) h=30 nm,p=600 nm,θ=45°,反射率随r的变化;(b) r=70 nm,p=600 nm,θ=45°,反射率随h的变化;(c) r=70 nm,h=30 nm,θ=45°,反射率随p的变化;(d) r=70 nm, h=30 nm,p=650 nm,反射率随θ的变化
Fig. 2. Reflectivity as a function of r, h, p, θ, and wavelength. (a) Reflectivity versus r when h=30 nm, p=600 nm, and θ=45°; (b) reflectivity versus h when r=70 nm, p=600 nm, and θ=45°;(c) reflectivity versus p when r=70 nm, h=30 nm, and θ=45°;(d) reflectivity versus θ when r=70 nm, h=30 nm, and p=650 nm
图 3. 器件截面图以及不同参数下磁场H的分布图。(a)器件xoz平面的截面图,r=100 nm;(b) SPP模式;(c) LSPR模式;(d) r=70 nm时的耦合模式
Fig. 3. Cross-section of device and magnetic field H distributions under different structural parameters. (a) Cross-section of xoz plane of device when r=100 nm; (b) SPP mode;(c) LSPR mode; (d) coupling mode when r=70 nm
图 4. 横向磁光克尔效应与波长、结构尺寸的关系。(a) h=30 nm,p=600 nm,θ=45°,改变r;(b) r=70 nm,p=600 nm, θ=45°,改变h;(c) r=70 nm,h=30 nm,θ=45°,改变p;(d) r=70 nm,h=30 nm,p=650 nm,改变θ
Fig. 4. TMOKE as a function of r, h, p, θ, and wavelength. (a) TMOKE versus r when h=30 nm, p=600 nm, and θ=45°; (b) TMOKE versus h when r=70 nm, p=600 nm, and θ=45°;(c) TMOKE versus p when r=70 nm, h=30 nm, and θ=45°; (d) TMOKE versus θ when r=70 nm, h=30 nm, and p=650 nm
表 1不同折射率下器件传感信号的线宽及品质因数
Table1. Line width and FoM of sensing signal of the device at different refractive indexes
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王会丽, 秦俊, 康同同, 张燕, 聂立霞, 艾万森, 李艳芳, 毕磊. 基于Au/Ce∶YIG/TiN结构的磁光表面等离激元共振及折射率传感器研究[J]. 激光与光电子学进展, 2019, 56(20): 202411. Huili Wang, Jun Qin, Tongtong Kang, Yan Zhang, Lixia Nie, Wansen Ai, Yanfang Li, Lei Bi. Magneto-Optical Surface Plasmon Resonance and Refractive Index Sensor Based on Au/Ce∶YIG/TiN Structure[J]. Laser & Optoelectronics Progress, 2019, 56(20): 202411.