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Publication Citation: Submillimeter and THz Detection of Chemical-Warfare Agents in Air

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Author(s): Vyacheslav B. Podobedov; R J. Lavrich; T M. Korter; Gerald T. Fraser; David F. Plusquellic; A C. Samuels;
Title: Submillimeter and THz Detection of Chemical-Warfare Agents in Air
Published: December 31, 2004
Abstract: Experimental measurements and theoretical calculations were performed to assess the potential for using continuous-wave submillimeter and THz (far-infrared) linear-absorption spectroscopies to detect chemical-warfare agents in air at ambient temperatures and pressures. The experimental studies used three different instruments: a far-infrared, Fourier-transform, polarizing interferometer; a frequency-stabilized, backward-wave oscillator (BWO); and a near-infrared, laser-pumped, THz photomixer. The sensors were evaluated on dimethyl methyl phosphonate (DMMP, C3H9O3P), a common simulant for nerve agents. Recommendations are provided for improving submillimeter and far-infrared methods for the detection of chemical-warfare agents.
Citation: NIST Interagency/Internal Report (NISTIR) -
Volume: 7134
Keywords: chemical agent,chemical warfare,dimethyl methyl phosphonate,spectroscopy,submillimeter radiation,terahertz,THz
Research Areas: Chemistry