Challenges of infrared reflective spectroscopy of solid-phase explosives and chemicals on surfaces

Mark C. Phillips, Jonathan D. Suter, Bruce E. Bernacki, Timothy J. Johnson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Scopus citations

Abstract

Reliable active and passive hyperspectral imaging and detection of explosives and solid-phase chemical residue on surfaces remains a challenge and an active area of research. Both methods rely on reference libraries for material identification, but in many cases the reference spectra are either not available or do not sufficiently resemble the instrumental signals of light reflected, scattered, or emitted from real-world objects. We describe a physics-based model using the complex dielectric constant to explain what is often thought of as anomalous behavior of scattered or nonspecular signatures encountered in active and passive sensing of explosives or chemicals on surfaces and show modeling and experimental results for RDX.

Original languageEnglish (US)
Title of host publicationChemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII
PublisherSPIE
ISBN (Print)9780819490360
DOIs
StatePublished - 2012
Externally publishedYes
EventChemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII - Baltimore, MD, United States
Duration: Apr 24 2012Apr 27 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8358
ISSN (Print)0277-786X

Conference

ConferenceChemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII
Country/TerritoryUnited States
CityBaltimore, MD
Period4/24/124/27/12

Keywords

  • Complex refractive index
  • Explosives detection
  • Infrared spectroscopy
  • Quantum cascade laser
  • Tunable laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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