Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36202
Title: Sensitive hydrogen sensor based on selectively infiltrated photonic crystal fiber with Pt-loaded WO3 coating
Authors: Wang, Y
Wang, DN 
Yang, F
Li, Z
Yang, MH
Issue Date: 2014
Publisher: Optical Society of America
Source: Optics letters, 2014, v. 39, no. 13, p. 3872-3875 How to cite?
Journal: Optics letters 
Abstract: A sensitive hydrogen sensing device based on a selectively infiltrated photonic crystal fiber (PCF) coated with Pt-loaded WO3 is demonstrated. With Pt-loaded WO3 coating acting as the catalytic layer, hydrogen undergoes an exothermic reaction with oxygen and releases heat when the device is exposed to gas mixtures of air and hydrogen, which induces local temperature change in the PCF and hence leads to the resonant wavelength shift of the proposed device. The maximum wavelength shift of 98.5 nm is obtained with a 10-mm-long infiltrated PCF for 4% (v/v) H-2 concentration, and a hydrogen sensitivity of 32.3 nm/% (v/v) H-2 is achieved within the range of 1%-4% (v/v) H-2 in air.
URI: http://hdl.handle.net/10397/36202
ISSN: 0146-9592
EISSN: 1539-4794
DOI: 10.1364/OL.39.003872
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