Terahertz spectroscopy of energetic materials

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

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

3 Citations (Scopus)

Abstract

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 publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8023
DOIs
StatePublished - 2011
EventTerahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense - Orlando, FL, United States
Duration: Apr 25 2011Apr 26 2011

Other

OtherTerahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense
CountryUnited States
CityOrlando, FL
Period4/25/114/26/11

Fingerprint

Terahertz Spectroscopy
Terahertz spectroscopy
Explosives detection
explosives detection
spectroscopy
Molecular crystals
Drug products
Density functional theory
Explosive Detection
grade
Standoff Detection
Crystal structure
Particle size
Spectroscopy
density functional theory
low frequencies
solid state
Pharmaceuticals
Crystal Structure
crystal structure

Keywords

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

ASJC Scopus subject areas

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

Cite this

Witko, E. M., Korter, T. M., Wilkinson, J., Ouellette, W., & Lightstone, J. (2011). Terahertz spectroscopy of energetic materials. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8023). [80230M] https://doi.org/10.1117/12.882905

Terahertz spectroscopy of energetic materials. / Witko, Ewelina M.; Korter, Timothy Michael; Wilkinson, John; Ouellette, Wayne; Lightstone, James.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8023 2011. 80230M.

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

Witko, EM, Korter, TM, Wilkinson, J, Ouellette, W & Lightstone, J 2011, Terahertz spectroscopy of energetic materials. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8023, 80230M, Terahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense, Orlando, FL, United States, 4/25/11. https://doi.org/10.1117/12.882905
Witko EM, Korter TM, Wilkinson J, Ouellette W, Lightstone J. Terahertz spectroscopy of energetic materials. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8023. 2011. 80230M https://doi.org/10.1117/12.882905
Witko, Ewelina M. ; Korter, Timothy Michael ; Wilkinson, John ; Ouellette, Wayne ; Lightstone, James. / Terahertz spectroscopy of energetic materials. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8023 2011.
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