Refractive index sensing characteristics in a D-shaped photonic quasi-crystal fiber sensor based on surface plasmon resonance

Abstract

A D-shaped photonic quasi-crystal fiber (PQF) sensor based on surface plasmon resonance is proposed for refractive index (RI) sensing. The influences of the width of the gold film, the diameter of the air holes, and the thickness of the gold film on the sensing performance are analyzed. When the RI of a liquid analyte gradually increases from 1.415 to 1.427, the average sensitivity is calculated as 10,250 nm/RIU, and the maximum sensitivity is up to 34,000 nm/RIU, which realizes the high-sensitivity sensing in the near-infrared band. The D-shaped PQF sensor proposed has great application potential in the detection of biochemical analytes and provides a new way to improve the sensing performance.

© 2019 Optical Society of America

Surface plasmon resonance sensor based on eccentric core photonic quasi-crystal fiber with indium tin oxide

Qiang Liu, Jiudi Sun, Yudan Sun, Wei Liu, Famei Wang, Lin Yang, Chao Liu, Qingyu Liu, Qian Li, Zonghuan Ren, Tao Sun, and Paul K. Chu
Appl. Opt. 58(25) 6848-6853 (2019)

D-shaped photonic crystal fiber refractive index sensor based on surface plasmon resonance

Guowen An, Xiaopeng Hao, Shuguang Li, Xin Yan, and Xuenan Zhang
Appl. Opt. 56(24) 6988-6992 (2017)

D-shaped photonic crystal fiber plasmonic refractive index sensor based on gold grating

Junjie Lu, Yan Li, Yanhua Han, Yi Liu, and Jianmin Gao
Appl. Opt. 57(19) 5268-5272 (2018)

Surface plasmon resonance biosensor based on hexagonal lattice dual-core photonic crystal fiber

Tanvir Ahmed, Alok Kumar Paul, Md. Shamim Anower, and S. M. Abdur Razzak
Appl. Opt. 58(31) 8416-8422 (2019)

Ultrahigh sensitivity refractive index sensor of a D-shaped PCF based on surface plasmon resonance

JunJun Wu, Shuguang Li, Xinyu Wang, Min Shi, Xinxing Feng, and Yundong Liu
Appl. Opt. 57(15) 4002-4007 (2018)