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Proceedings Paper

Fiber optic hydrogen sulfide gas sensor utilizing surface plasmon resonance of Cu/ZnO thin films
Author(s): Rana Tabassum; Satyendra K. Mishra; Banshi D. Gupta
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Paper Abstract

We report a surface plasmon resonance based fiber optic hydrogen sulphide gas sensor using Cu/ZnO thin films. The sensor works on wavelength modulation scheme. The fiber optic probe was fabricated by removing the cladding of appropriate length from the fiber and depositing copper and ZnO thin films on the unclad core by thermal evaporation technique. The presence of hydrogen sulphide gas around the probe changes the dielectric function of zinc oxide and a dip is observed in transmitted spectrum. With the increase in the gas concentration shift in the resonance wavelength has been observed. The proposed sensor can be used for online monitoring and remote sensing of hydrogen sulphide gas in the environment.

Paper Details

Date Published: 20 May 2013
PDF: 5 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87941E (20 May 2013); doi: 10.1117/12.2026060
Show Author Affiliations
Rana Tabassum, Indian Institute of Technology Delhi (India)
Satyendra K. Mishra, Indian Institute of Technology Delhi (India)
Banshi D. Gupta, Indian Institute of Technology Delhi (India)

Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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