Towards non-invasive detection of concealed energetic materials in-field under ambient light conditions

Biju Cletus, William Olds, Emad L. Izake, Peter M. Fredericks, Helen Panayiotou, Esa Jaatinen

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

9 Citations (Scopus)


Spatially offset Raman spectroscopy (SORS) is demonstrated for the non-contact detection of energetic materials concealed within non-transparent, diffusely scattering containers. A modified design of an inverse SORS probe has been developed and tested. The SORS probe has been successfully used for the detection of various energetic substances inside different types of plastic containers. The tests have been successfully conducted under incandescent and fluorescent background lights as well as under daylight conditions, using a non-contact working distance of 6 cm. The interrogation times for the detection of the substances were less than 1 minute in each case, highlighting the suitability of the device for near real-time detection of concealed hazards in the field. The device has potential applications in forensic analysis and homeland security investigations.
Original languageEnglish
Title of host publicationNext-Generation Spectroscopic Technologies IV
Subtitle of host publication25–26 April 2011, Orlando, Florida, United States
EditorsM. A. Druy, R. A. Crocombe
Place of PublicationBellingham, Washington
Number of pages15
ISBN (Print)9780819486066
Publication statusPublished - 2011
Externally publishedYes
EventNext-Generation Spectroscopic Technologies IV - Orlando, FL
Duration: 25 Apr 201126 Apr 2011

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


ConferenceNext-Generation Spectroscopic Technologies IV
CityOrlando, FL


  • inverse SORS
  • Raman spectroscopy
  • energetic materials
  • non-contact analysis
  • in field detection
  • forensic analysis
  • homeland security


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