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

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

8 Citations (Scopus)


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.
Original languageEnglish
Title of host publicationNext-generation Spectroscopic Technologies V
Subtitle of host publication23–24 April 2012, Baltimore, Maryland
EditorsMark A. Druy, Richard A. Crocombe
Place of PublicationBellingham, Washington
Number of pages7
ISBN (Print)9780819490520
Publication statusPublished - 2012
Externally publishedYes
EventConference on Next-Generation Spectroscopic Technologies V - Baltimore, Maryland
Duration: 23 Apr 201225 Apr 2013

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


ConferenceConference on Next-Generation Spectroscopic Technologies V
CityBaltimore, Maryland


  • time resolved SORS
  • Raman spectroscopy
  • explosive precursors
  • non-contact analysis
  • forensic analysis
  • homeland security


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