Type

Journal Article

Authors

Qiang wu
Yuliya Semenova
Dejun Liu
Mark Rebow
Gerald Farrell
Wei Han

Subjects

Physics

Topics
all fiber refractive index single mode fiber phase transition physics optical fiber sensor phase change material n octadecane solid liquid phase change supercooling optical fiber fresnel reflection sensor electrical and electronics

Optical Fiber Fresnel Reflection Sensor for Direct Detection of the Solid-Liquid Phase Change in N-Octadecane (2018)

Abstract An all optical fiber Fresnel reflection sensor for detecting the solid–liquid phase change in n-octadecane is proposed and experimentally demonstrated. The sensor probe consists of a single-mode fiber with a cleaved end which is immersed in the material sample under test. As the n-octadecane changes from solid to liquid or from liquid to solid, its refractive index (RI) changes resulting in changes of the light power ratio reflected by the probe. Since the RI of n-octadecane during its phase transition changes discontinuously, inflection in the reflected light power ratio dependence indicates the phase change of the sample in the vicinity of the sensor probe. The results of this work suggest that such a simple optical fiber sensor can be used for detection of liquid–solid phase changes in other materials with similar to n-octadecane thermo-optic properties.
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Full list of authors on original publication

Qiang wu, Yuliya Semenova, Dejun Liu, Mark Rebow, Gerald Farrell, Wei Han

Experts in our system

1
Qiang wu
TU Dublin
Total Publications: 90
 
2
Yuliya Semenova
TU Dublin
Total Publications: 136
 
3
Dejun Liu
TU Dublin
Total Publications: 24
 
4
Gerald Farrell
TU Dublin
Total Publications: 212
 
5
Wei Han
TU Dublin
Total Publications: 9