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Proceedings Paper

Nanocrystalline Titanium dioxide coated optical fiber sensor for ammonia vapour detection
Author(s): B. Renganathan; D. Sastikumar; G. Gobi; R. Srinivasan; N. Rajeshwari Yogamalar; A. Chandra Bose
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Paper Abstract

Fiber optic sensor is proposed based on cladding modification method for detecting ammonia emissions. Nanocrystalline titanium dioxide is used as a sensing material and spectral characteristics of the sensor are studied for different concentrations (50-500 ppm) of ammonia, methanol and ethanol. The sensor shows a linear variation in the output light intensity with the concentration. The light intensity increases for ammonia whereas it decreases for methanol and ethanol. Gas selectivity of the sensor is discussed.

Paper Details

Date Published: 28 August 2010
PDF: 7 pages
Proc. SPIE 7764, Nanoengineering: Fabrication, Properties, Optics, and Devices VII, 77640U (28 August 2010); doi: 10.1117/12.860712
Show Author Affiliations
B. Renganathan, National Institute of Technology, Tiruchirappalli (India)
D. Sastikumar, National Institute of Technology, Tiruchirappalli (India)
G. Gobi, National Institute of Technology, Tiruchirappalli (India)
R. Srinivasan, National Institute of Technology, Tiruchirappalli (India)
N. Rajeshwari Yogamalar, National Institute of Technology, Tiruchirappalli (India)
A. Chandra Bose, National Institute of Technology, Tiruchirappalli (India)


Published in SPIE Proceedings Vol. 7764:
Nanoengineering: Fabrication, Properties, Optics, and Devices VII
Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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