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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3872–3875

Sensitive hydrogen sensor based on selectively infiltrated photonic crystal fiber with Pt-loaded WO3 coating

Ying Wang, D. N. Wang, Fan Yang, Zhi Li, and Minghong Yang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 13, pp. 3872-3875 (2014)
http://dx.doi.org/10.1364/OL.39.003872


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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) H2 concentration, and a hydrogen sensitivity of 32.3 nm/% (v/v) H2 is achieved within the range of 1%–4% (v/v) H2 in air.

© 2014 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(060.5295) Fiber optics and optical communications : Photonic crystal fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 28, 2014
Revised Manuscript: May 21, 2014
Manuscript Accepted: May 23, 2014
Published: June 24, 2014

Citation
Ying Wang, D. N. Wang, Fan Yang, Zhi Li, and Minghong Yang, "Sensitive hydrogen sensor based on selectively infiltrated photonic crystal fiber with Pt-loaded WO3 coating," Opt. Lett. 39, 3872-3875 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-13-3872

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