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RSS FeedsSensors, Vol. 19, Pages 4063: Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer (Sensors)

 
 

20 september 2019 14:03:49

 
Sensors, Vol. 19, Pages 4063: Temperature Sensor Based on Side-Polished Fiber SPR Device Coated with Polymer (Sensors)
 




A highly sensitive temperature sensor based on surface plasmon resonance (SPR) of a side-polished single mode fiber is demonstrated. The sensor consists of a gold film coated side-polished fiber covered by a layer of UV-curable adhesive. Before introducing the UV-curable adhesive, the gold-coated fiber exhibits refractive index (RI) sensitivity of 1691.6 nm/RIU to 8800 nm/RIU in the range of 1.32 to 1.43. The resonant wavelength of the SPR sensor shifts to 650 nm when the adhesive is coated on the gold film, and is fixed at about 725 nm when the adhesive is cured. Due to the high thermo-optic and thermal expansion coefficient of the adhesive, the sensor structure achieves a temperature sensitivity of −0.978 nm/°C between 25 °C and 100 °C. The proposed optical fiber SPR sensor is simple, highly sensitive and cost effective, which may find potential applications for temperature measurements in the biomedical and environmental industries.


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23 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 4062: Boosting Multi-Vehicle Tracking with a Joint Object Detection and Viewpoint Estimation Sensor (Sensors)
Sensors, Vol. 19, Pages 4058: Human Activities and Postures Recognition: From Inertial Measurements to Quaternion-Based Approaches (Sensors)
 
 
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