High sensitivity with wide detection range refractive index sensor based on dual-core photonic crystal fiber

2022 ◽  
Author(s):  
Yao Wang ◽  
Xin Yan ◽  
Tonglei Cheng ◽  
Shuguang Li
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Detection Range ◽  
Crystal Fiber ◽  
Dual Core

High-Sensitivity Refractive Index Sensor with Cascaded Dual-Core Photonic Crystal Fiber Based on Vernier Effect

Optik ◽  
2021 ◽  
pp. 168488
Author(s):  
Yanjun Zhang ◽  
Lizhi Wang ◽  
Pinggang Jia ◽  
Chengrui Zhai ◽  
Guowen An ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Vernier Effect ◽  
Dual Core

scholarly journals High Sensitivity Refractive Index Sensor Based on Dual-Core Photonic Crystal Fiber with Hexagonal Lattice

Sensors ◽  
2016 ◽  
Vol 16 (10) ◽  
pp. 1655 ◽  
Author(s):  
Haiyang Wang ◽  
Xin Yan ◽  
Shuguang Li ◽  
Guowen An ◽  
Xuenan Zhang
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Hexagonal Lattice ◽  
High Sensitivity ◽  
Refractive Index Sensor ◽  
Crystal Fiber ◽  
Dual Core

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 A Bimetallic-Coated, Low Propagation Loss, Photonic Crystal Fiber Based Plasmonic Refractive Index Sensor

Sensors ◽  
2019 ◽  
Vol 19 (17) ◽  
pp. 3794 ◽  
Author(s):  
Mohammad Al Mahfuz ◽  
Md. Anwar Hossain ◽  
Emranul Haque ◽  
Nguyen Hoang Hai ◽  
Yoshinori Namihira ◽  
...  
Keyword(s):  
Refractive Index ◽  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Fem Simulation ◽  
Propagation Loss ◽  
Confinement Loss ◽  
Refractive Index Sensor ◽  
Detection Range ◽  
Plasmonic Material ◽  
Crystal Fiber

In this paper, a low-loss, spiral lattice photonic crystal fiber (PCF)-based plasmonic biosensor is proposed for its application in detecting various biomolecules (i.e., sugar, protein, DNA, and mRNA) and biochemicals (i.e., serum and urine). Plasmonic material gold (Au) is employed externally to efficiently generate surface plasmon resonance (SPR) in the outer surface of the PCF. A thin layer of titanium oxide (TiO2) is also introduced, which assists in adhering the Au layer to the silica fiber. The sensing performance is investigated using a mode solver based on the finite element method (FEM). Simulation results show a maximum wavelength sensitivity of 23,000 nm/RIU for a bio-samples refractive index (RI) detection range of 1.32–1.40. This sensor also exhibits a very low confinement loss of 0.22 and 2.87 dB/cm for the analyte at 1.32 and 1.40 RI, respectively. Because of the ultra-low propagation loss, the proposed sensor can be fabricated within several centimeters, which reduces the complexity related to splicing, and so on.

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