Terahertz spectroscopy of energetic materials

Ewelina M. Witko, Timothy M. Korter, John Wilkinson, Wayne Ouellette, James Lightstone

Research output: Chapter in Book/Entry/PoemConference contribution

3 Scopus citations


Recently, terahertz spectroscopy has attracted increasing interest as a probe of organic molecular crystals such as pharmaceutical compounds and explosives. Terahertz time-domain spectroscopy (THz-TDS) focuses on low-frequency (10-120 cm-1) intermolecular modes that are characteristic of the crystal structure. The prospect of material-specific identification, combined with the ability of THz light to penetrate many common materials, has lead to an emphasis on the prospect of a THz-based, standoff explosives detection device. In this presentation, THz spectra of materials ranging from military-grade explosives to home-made explosive components will be discussed. In addition to the experimental results, THz spectral assignments will be presented based on solid-state density functional theory simulations. Finally, the effect of particle size on the observed spectra will also be considered.

Original languageEnglish (US)
Title of host publicationTerahertz Physics, Devices, and Systems V
Subtitle of host publicationAdvance Applications in Industry and Defense
StatePublished - Sep 19 2011
EventTerahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense - Orlando, FL, United States
Duration: Apr 25 2011Apr 26 2011

Publication series

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


OtherTerahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense
Country/TerritoryUnited States
CityOrlando, FL


  • Density functional theory
  • Homemade explosives
  • Terahertz
  • Vibrational spectroscopy

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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