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Type: Journal article
Title: Identification and quantification of explosives in nanolitre solution volumes by Raman spectroscopy in suspended core optical fibers
Author: Tsiminis, G.
Chu, F.
Warren-Smith, S.
Spooner, N.
Monro, T.
Citation: Sensors, 2013; 13(10):13163-13177
Publisher: Molecular Diversity Preservation International (MDPI)
Issue Date: 2013
ISSN: 1424-8220
Statement of
Georgios Tsiminis, Fenghong Chu, Stephen C. Warren-Smith, Nigel A. Spooner and Tanya M. Monro
Abstract: A novel approach for identifying explosive species is reported, using Raman spectroscopy in suspended core optical fibers. Numerical simulations are presented that predict the strength of the observed signal as a function of fiber geometry, with the calculated trends verified experimentally and used to optimize the sensors. This technique is used to identify hydrogen peroxide in water solutions at volumes less than 60 nL and to quantify microgram amounts of material using the solvent’s Raman signature as an internal calibration standard. The same system, without further modifications, is also used to detect 1,4-dinitrobenzene, a model molecule for nitrobenzene-based explosives such as 2,4,6-trinitrotoluene (TNT).
Keywords: explosives detection
fiber sensors
Raman spectroscopy
chemical sensing
microstructured optical fibers
Rights: © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
DOI: 10.3390/s131013163
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