Detection and determination of manganese concentration in water using a fiber Bragg grating coupled with nanotechnology

Akki, Jyoti F and Lalasangi, Anandkumar S and Manohar, Konduri G and Raikar, Prasad and Srinivas, Talabatulla and Raikar, Uday S (2011) Detection and determination of manganese concentration in water using a fiber Bragg grating coupled with nanotechnology. In: Applied Optics, 50 (32). pp. 6033-6038.

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Abstract

Through this paper we experimentally demonstrate the fabrication of a fiber Bragg grating (FBG) chemical sensor to detect and determine the manganese concentration in water and compare our results with sophisticated spectroscopic methods, such as atomic absorption spectrometry and the inductively coupled plasma method. Here we propose a simple method to develop a thin layer of gold nanoparticles above the etched grating region to enhance the sensitivity of the reflected spectrum of the FBG. By doing so, we achieve a sensitivity of 1.26 nm/parts per million in determining the trace level of Mn in water. Proper reagents are used to detect manganese in water. (C) 2011 Optical Society of America

Item Type:	Journal Article
Publication:	Applied Optics
Publisher:	Optical Soc Amer
Additional Information:	Copyright of this article belongs to Optical Soc Amer.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	21 Dec 2011 09:19
Last Modified:	21 Dec 2011 09:19
URI:	http://eprints.iisc.ac.in/id/eprint/42606

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