Ex-centric core photonic crystal fiber sensor with gold nanowires based on surface plasmon resonance

被引：41
作者：
Liu, Chao [1 ]
Fu, Guanglai [1 ]
Wang, Famei [1 ]
Yi, Zao [2 ]
Xu, Chunhong [1 ]
Yang, Lin [1 ]
Liu, Qiang [1 ]
Liu, Wei [1 ]
Li, Xianli [1 ]
Mu, Haiwei [1 ]
Sun, Tao [3 ]
Chu, Paul K. [4 ,5 ]
机构：
[1] Northeast Petr Univ, Sch Elect Sci, Daqing 163318, Peoples R China
[2] Southwest Univ Sci & Technol, Mianyang 621010, Sichuan, Peoples R China
[3] MIT, Media Lab, Cambridge, MA 02139 USA
[4] City Univ Hong Kong, Dept Phys, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
[5] City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Tat Chee Ave, Hong Kong, Peoples R China
来源：
OPTIK | 2019年 / 196卷
关键词：
Photonic crystal fiber; Surface plasmon resonance; Ex-centric core; Finite element method;
D O I：
10.1016/j.ijleo.2019.163173
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An ex-centric core photonic crystal fiber sensor with gold nanowires based on surface plasmon resonance is designed and analyzed by the finite element method (FEM). The influence of the structural parameters of the sensor on the spectral sensitivity and resonance wavelength is studied for analyze refractive indexes (n(a)) between 1.33 and 1.4. The guided mode in the ex-centric core passes the three states of intersection, anti-intersection, non-intersection successively. The average spectral sensitivity and maximum spectral sensitivity are 7428 nm/RIU and 14,200 nm/RIU, respectively, and the refractive index resolution is 7.04 x 10(-6) RIU. A quality factor of 140 is achieved indicating great potential for application to biochemistry and other fields.
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页数：8
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