Humidity sensing by tailoring light absorption of SiO2/bromophenol blue (BPB) thin film on optical fiber

The fabrication of an evanescent wave fiber optic humidity sensor based on bromophenol blue (BPB) doped SiO2 thin film was demonstrated, modulating in light intensity. The sensing film was coated on a fiber core via a single-step dip coating method, followed by sol-gel processing of the precursor. A...

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Veröffentlicht in:	Japanese Journal of Applied Physics 2024-07, Vol.63 (7), p.070902
Hauptverfasser:	Zhang, Hengheng, Lai, Min, Chen, Yuxin, Qi, Yutong, Zhu, Bao, Xiao, Xuefei, Zhou, Xingchen, Ma, Yan
Format:	Artikel
Sprache:	eng
Schlagworte:	BPB thin film Bromophenol blue Electromagnetic absorption evanescent wave Evanescent waves fiber optic sensor Fiber optics humidity sensing Immersion coating Luminous intensity Optical fibers Relative humidity Ring opening Silicon dioxide SiO Sol-gel processes Thin films
Online-Zugang:	Volltext
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