Sensors 2013, 13(10), 13163-13177; doi:10.3390/s131013163
Article

Identification and Quantification of Explosives in Nanolitre Solution Volumes by Raman Spectroscopy in Suspended Core Optical Fibers

1 Institute for Photonics & Advanced Sensing and School of Chemistry & Physics, the University of Adelaide, Adelaide, South Australia 5005, Australia 2 School of Computer Science and Information Technology, Shanghai University of Electric Power, Shanghai 200090, China 3 Defence Science & Technology Organisation, South Australia 5111, Australia
* Author to whom correspondence should be addressed.
Received: 8 August 2013; in revised form: 18 September 2013 / Accepted: 24 September 2013 / Published: 30 September 2013
(This article belongs to the Special Issue Photodetectors)
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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

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MDPI and ACS Style

Tsiminis, G.; Chu, F.; Warren-Smith, S.C.; Spooner, N.A.; Monro, T.M. Identification and Quantification of Explosives in Nanolitre Solution Volumes by Raman Spectroscopy in Suspended Core Optical Fibers. Sensors 2013, 13, 13163-13177.

AMA Style

Tsiminis G, Chu F, Warren-Smith SC, Spooner NA, Monro TM. Identification and Quantification of Explosives in Nanolitre Solution Volumes by Raman Spectroscopy in Suspended Core Optical Fibers. Sensors. 2013; 13(10):13163-13177.

Chicago/Turabian Style

Tsiminis, Georgios; Chu, Fenghong; Warren-Smith, Stephen C.; Spooner, Nigel A.; Monro, Tanya M. 2013. "Identification and Quantification of Explosives in Nanolitre Solution Volumes by Raman Spectroscopy in Suspended Core Optical Fibers." Sensors 13, no. 10: 13163-13177.

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