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Proceedings Paper

Terahertz spectroscopy of energetic materials
Author(s): Ewelina M. Witko; Timothy M. Korter; John Wilkinson; Wayne Ouellette; James Lightstone
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Paper 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.

Paper Details

Date Published: 26 May 2011
PDF: 8 pages
Proc. SPIE 8023, Terahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense, 80230M (26 May 2011); doi: 10.1117/12.882905
Show Author Affiliations
Ewelina M. Witko, Syracuse Univ. (United States)
Timothy M. Korter, Syracuse Univ. (United States)
John Wilkinson, Naval Surface Warfare Ctr., Indian Head (United States)
Wayne Ouellette, Naval Surface Warfare Ctr., Indian Head (United States)
James Lightstone, Naval Surface Warfare Ctr., Indian Head (United States)


Published in SPIE Proceedings Vol. 8023:
Terahertz Physics, Devices, and Systems V: Advance Applications in Industry and Defense
Mehdi Anwar; Nibir K. Dhar; Thomas W. Crowe, Editor(s)

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