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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 13 — Jun. 27, 2005
  • pp: 5087–5092

Fast detection of hydrogen with nano fiber tapers coated with ultra thin palladium layers

Joel Villatoro and David Monzón-Hernández  »View Author Affiliations


Optics Express, Vol. 13, Issue 13, pp. 5087-5092 (2005)
http://dx.doi.org/10.1364/OPEX.13.005087


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Abstract

We report a miniature hydrogen sensor that consists of a sub-wavelength diameter tapered optical fiber coated with an ultra thin palladium film. The optical properties of the palladium layer changes when the device is exposed to hydrogen. Consequently, the absorption of the evanescent waves also changes. The sensor was tested in a simple light transmission measurement setup that consisted of a 1550 nm laser diode and a photodetector. Our sensor is much smaller and faster than other optical hydrogen sensors reported so far. The sensor proposed here is suitable for detecting low concentrations of hydrogen at normal conditions.

© 2005 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(300.1030) Spectroscopy : Absorption

ToC Category:
Research Papers

History
Original Manuscript: May 2, 2005
Revised Manuscript: June 14, 2005
Published: June 27, 2005

Citation
Joel Villatoro and David Monzón-Hernández, "Fast detection of hydrogen with nano fiber tapers coated with ultra thin palladium layers," Opt. Express 13, 5087-5092 (2005)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-13-13-5087


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