Affiliation:
1. Northeast Petroleum University
2. Beijing Jiaotong University
3. City University of Hong Kong
Abstract
On the heels of the continuous development of optical fiber sensing technology, optical fiber sensors based on surface plasmon resonance (SPR) have attracted widespread attention. Herein, an SPR sensor based on the six nested anti-resonant fiber (ARF) is designed and analyzed by the finite element method (FEM). All the structural parameters are optimized to achieve high-sensitivity liquid refractive index detection. Filling the anti-resonant tube with plasmonic materials to excite SPR can further reduce the manufacturing complexity. The optimal ARF-SPR sensor has excellent characteristics, including an average wavelength sensitivity of 42,000 nm/RIU, maximum sensor length of 0.08 cm, and resolution of 1.61×10−6RIU. The ARF-SPR sensor has great potential in chemical analysis, biomedicine, and other fields.
Funder
City University of Hong Kong
City University of Hong Kong Strategic Research Grant
City University of Hong Kong Donation Research Grant
Local Universities Reformation and Development Personnel Training Supporting Project from Central Authorities, Postdoctoral scientific research development fund of Heilongjiang Province
Outstanding young and middle-aged research and innovation team of Northeast Petroleum University
Natural Science Foundation of Heilongjiang Province