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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 17 — Jun. 10, 2012
  • pp: 3768–3775

Fabrication and calibration of Oxazine-based optic fiber sensor for detection of ammonia in water

Ahmed Hasnain Jalal, Jinsong Yu, and A. G. Agwu Nnanna  »View Author Affiliations


Applied Optics, Vol. 51, Issue 17, pp. 3768-3775 (2012)
http://dx.doi.org/10.1364/AO.51.003768


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Abstract

This paper presented the fabrication and calibration of a clad-modified evanescent based plastic optical fiber (POF) sensor for the detection of ammonia in both stagnant and dynamic aqueous media. This optochemical sensor was based on Oxazine 170 perchlorate (sensing material) and polydimethylsiloxane (PDMS) (protective material) thin layers. A special chemical solution was developed for the etching removal of cladding and a methodology for trapping moisture was exercised. Experimental results on dissolved ammonia detection exhibited short response time (10 s), low detection limit (minimum detection limit 1.4 ppm), high sensitivity, and excellent reversibility (over 99%).

© 2012 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(220.0220) Optical design and fabrication : Optical design and fabrication
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(310.0310) Thin films : Thin films

ToC Category:
Detectors

History
Original Manuscript: September 2, 2011
Manuscript Accepted: February 9, 2012
Published: June 6, 2012

Citation
Ahmed Hasnain Jalal, Jinsong Yu, and A. G. Agwu Nnanna, "Fabrication and calibration of Oxazine-based optic fiber sensor for detection of ammonia in water," Appl. Opt. 51, 3768-3775 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-17-3768

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