Field portable time resolved SORS sensor for the identification of concealed hazards

Cletus, Biju, Olds, William J., Izake, Emad L., Sundarajoo, Shankaran, Fredericks, Peter M., & Jaatinen, Esa (2012) Field portable time resolved SORS sensor for the identification of concealed hazards. Proceedings of SPIE, 8374.

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Raman spectroscopy, when used in spatially offset mode, has become a potential tool for the identification of explosives and other hazardous substances concealed in opaque containers. The molecular fingerprinting capability of Raman spectroscopy makes it an attractive tool for the unambiguous identification of hazardous substances in the field. Additionally, minimal sample preparation is required compared with other techniques. We report a field portable time resolved Raman sensor for the detection of concealed chemical hazards in opaque containers. The new sensor uses a pulsed nanosecond laser source in conjunction with an intensified CCD detector. The new sensor employs a combination of time and space resolved Raman spectroscopy to enhance the detection capability. The new sensor can identify concealed hazards by a single measurement without any chemometric data treatments.

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ID Code: 49947
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Time resolved SORS, Raman spectroscopy, explosive precursors, non-contact analysis, forensic analysis, homeland security
DOI: 10.1117/12.918981
ISSN: 1996-756X (online) 0277-786X (print)
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OPTICAL PHYSICS (020500)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ANALYTICAL CHEMISTRY (030100)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 01 May 2012 22:48
Last Modified: 14 Nov 2013 15:43

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