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

Biju Cletus; William Olds; Emad L. Izake; Shankaran Sundarajoo; Peter M. Fredericks; Esa Jaatinen

doi:10.1117/12.918981

17 May 2012 Field portable time resolved SORS sensor for the identification of concealed hazards

Biju Cletus, William Olds, Emad L. Izake, Shankaran Sundarajoo, Peter M. Fredericks, Esa Jaatinen

Proceedings Volume 8374, Next-Generation Spectroscopic Technologies V; 837403 (2012) https://doi.org/10.1117/12.918981
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

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.

Citation Download Citation

Biju Cletus, William Olds, Emad L. Izake, Shankaran Sundarajoo, Peter M. Fredericks, and Esa Jaatinen "Field portable time resolved SORS sensor for the identification of concealed hazards", Proc. SPIE 8374, Next-Generation Spectroscopic Technologies V, 837403 (17 May 2012); https://doi.org/10.1117/12.918981

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