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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 1 , ISSUE 1 (March 2008) > List of articles


Cesar Elosua * / Ignacio R. Matias / Candido Bariain / Francisco J. Arregui

Keywords : optical fibre sensor, gas sensor, vapochromic material, Layer by Layer

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 1, Issue 1, Pages 123-136, DOI:

License : (CC BY-NC-ND 4.0)

Published Online: 13-December-2017



An optical fibre sensor for detection of volatile organic compounds (VOCs) has been implemented. This device is based on a vapochromic material presented in the form of bright red powders, which suffers reversible changes in its optical properties when exposed to some organic vapours. The sensor head consists of a nano interferometer doped with the vapochromic material, built onto a cleaved ended multimode optical fibre by using the Layer by Layer Electrostatic Self Assembly Method (LbL). A reflection scheme was used, so the intensity modulated reflected signal is registered in order to study its response. Changes up to 3 dB in the reflected optical power were measured.

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