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

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

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

Author(s) -

Biju Cletus,

William Olds,

Emad L. Izake,

Shankaran Sundarajoo,

Peter M. Fredericks,

Esa Jaatinen

Publication year - 2012

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.918981

Subject(s) - raman spectroscopy , opacity , explosive material , detector , computer science , identification (biology) , materials science , optics , chemistry , physics , telecommunications , organic chemistry , botany , biology

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.7 page(s

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