Development of a High Sensitive Refractive Index Sensor Based on Evanescent Wave Absorbance effect in Reflective Mode for Ocean Observation

2021 ◽  
Author(s):  
C. R. Uma Kumari ◽  
R. Kumar ◽  
Dhanalakshmi Samiappan ◽  
Tata Sudhakar
Keyword(s):  
Refractive Index ◽  
Evanescent Wave ◽  
Refractive Index Sensor

scholarly journals Refractive Index Sensor Based on Double Side-Polished U-Shaped Plastic Optical Fiber

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5253
Author(s):  
Shumin Wang ◽  
Daming Zhang ◽  
Yan Xu ◽  
Siwen Sun ◽  
Xiaoqiang Sun
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Evanescent Wave ◽  
Low Cost ◽  
Temperature Characteristic ◽  
Processing Parameters ◽  
Refractive Index Sensor ◽  
Plastic Optical Fiber ◽  
Favorable Temperature ◽  
Index Unit

A U-shaped double-side polished plastic optical fiber (POF) is demonstrated as a liquid refractive index (RI) sensor. The refractive index of glycerinum solutions is identified by the intensity detection on the bending and evanescent wave loss change. Heat treatment and mechanical polishing are adopted to form the symmetrical side-polished POF probe. The processing parameters are experimentally optimized on the power transmittance. The sensitivity of 1541%/RIU (Refractive Index Unit) can be obtained with a resolution of 5.35 × 10−4 in the scope of 1.33–1.39. The favorable temperature characteristic is proved to offer stable RI sensing from 20 to 50 °C. This simple POF sensor has potentials in low-cost visible light intensity RI detection.

Comprehensive investigation of evanescent wave optical fiber refractive index sensor coated with ZnO nanoparticles

2019 ◽  
Vol 52 ◽  
pp. 101976 ◽  
Author(s):  
Zahra Samavati ◽  
Alireza Samavati ◽  
Ahmad Fauzi Ismail ◽  
Mohd Hafiz Dzarfan Othman ◽  
Mukhlis A. Rahman
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Zno Nanoparticles ◽  
Evanescent Wave ◽  
Refractive Index Sensor ◽  
Comprehensive Investigation

scholarly journals Refractive Index Sensor for Salty and Sugary Solution Based on Optical Fiber Technical

2021 ◽  
Vol 1879 (3) ◽  
pp. 032077
Author(s):  
Maher Khaleel Ibrahim ◽  
Shehab A Kadhim ◽  
Nabeil Ibrahim Fawaz
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Refractive Index Sensor
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