Photonic crystal fiber refractive index sensor with ultra-wide detection range based on surface plasmon resonance

2020 ◽  
Author(s):  
Guangyao Wang ◽  
Ying Lu ◽  
Liangcheng Duan ◽  
Jianquan Yao
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Refractive Index Sensor ◽  
Detection Range ◽  
Crystal Fiber

scholarly journals Surface Plasmon Resonance Refractive Index Sensor Based on Active Photonic Crystal Fiber

2013 ◽  
Vol 5 (6) ◽  
pp. 4801108-4801108 ◽  
Author(s):  
C. J. Hao ◽  
Y. Lu ◽  
M. T. Wang ◽  
B. Q Wu ◽  
L. C. Duan ◽  
...  
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Refractive Index Sensor ◽  
Crystal Fiber

scholarly journals High Sensitivity Photonic Crystal Fiber Refractive Index Sensor with Gold Coated Externally Based on Surface Plasmon Resonance

Micromachines ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 640 ◽  
Author(s):  
Xudong Li ◽  
Shuguang Li ◽  
Xin Yan ◽  
Dongming Sun ◽  
Zheng Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Air Hole

In this paper we propose a gold-plated photonic crystal fiber (PCF) refractive index sensor based on surface plasmon resonance (SPR), in which gold is coated on the external surface of PCF for easy fabrication and practical detection. The finite element method (FEM) is used for the performance analysis, and the numerical results show that the thickness of the gold film, the refractive index of the analyte, the radius of the air hole in the first layer, the second layer, and the central air hole can affect the sensing properties of the sensor. By optimizing the sensor structure, the maximum wavelength sensitivity can reach 11000 nm/RIU and the maximum amplitude sensitivity can reach 641 RIU−1. Due to its high sensitivity, the proposed sensor can be used for practical biological and chemical sensing.

scholarly journals Graphene-Enhanced Surface Plasmon Resonance Liquid Refractive Index Sensor Based on Photonic Crystal Fiber

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3666 ◽  
Author(s):  
Bin Li ◽  
Tonglei Cheng ◽  
Junxin Chen ◽  
Xin Yan
Keyword(s):  
Refractive Index ◽  
Surface Plasmon Resonance ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Electron Beam Evaporation ◽  
Refractive Index Sensor ◽  
Crystal Fiber

A surface plasmon resonance (SPR) liquid refractive index sensor based on photonic crystal fiber (PCF) is proposed. The PCF is made of the exposed core structure, and the gold film is formed by electron beam evaporation within its defects. The sensitivity of the sensor is improved by coating graphene on the surface of the gold film. The experimental results show that the sensitivity of the sensor is increased by 390 nm/RIU after the introduction of graphene, and finally to 2290 nm/RIU. The experiment and simulation have a good consistency. Significantly, the sensor can be reused, and the measurement accuracy can be maintained.

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