Surface Plasmon Resonance Sensor Based on Ethylene Tetra-Fluoro-Ethylene Hollow Fiber

Sensors

Pan Chen¹  Yu-Jing He¹  Xiao-Song Zhu¹  Yi-Wei Shi¹ 

[1] School of Information Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China; E-Mails:

关键词: surface plasmon resonance;    hollow fiber;    sensor;    ethylene tetra-fluoro-ethylene;   

DOI  :  10.3390/s151127917

来源: mdpi

【 摘 要 】

A new kind of hollow fiber surface plasmon resonance sensor (HF-SPRS) based on the silver-coated ethylene tetra-fluoro-ethylene (ETFE) hollow fiber (HF) is presented. The ETFE HF-SPRS is fabricated, and its performance is investigated experimentally by measuring the transmission spectra of the sensor when filled by liquid sensed media with different refractive indices (RIs). Theoretical analysis based on the ray transmission model is also taken to evaluate the sensor. Because the RI of ETFE is much lower than that of fused silica (FSG), the ETFE HF-SPRS can extend the lower limit of the detection range of the early reported FSG HF-SPRS from 1.5 to 1.42 approximately. This could greatly enhance the application potential of HF-SPRS. Moreover, the joint use of both ETFE and FSG HF-SPRSs can cover a wide detection range from 1.42 to 1.69 approximately with high sensitivities larger than 1000 nm/RIU.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.