"Hydrogen Gas Sensor Based On Seven-core Fiber Interference And Pt-WO3 " by You Wang, Farhan Mumtaz et al.
 

Abstract

Tungsten oxide (WO3) typically owns the characteristics of electrochemical, photo-chromic, and gas-chromic. The seven-core fiber (SCF) generates a strong interference signal that comprises super-modes. The thermo-optic and thermo-expansion characteristics of SCF were utilized with an aid of Pt-WO3 film that makes the sensor highly sensitive to the H2 gas environment. The sensor with spiral micro grooves by femtosecond-laser ablation considerably enhanced the H2 sensitivity from 3.28 nm% to 4.0 nm%, and obtained a response and recovery time < 90 s.

Department(s)

Electrical and Computer Engineering

Comments

National Natural Science Foundation of China, Grant 51975442

Keywords and Phrases

Ellipsoidal balls; Fiber optic sensor; Pt-WO thin film 3; Spiral micro-grooves

International Standard Serial Number (ISSN)

1873-4979; 0167-577X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Elsevier, All rights reserved.

Publication Date

15 Jun 2023

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