Submillimeter and THz Detection of Chemical-Warfare Agents in Air
Vyacheslav B. Podobedov, R J. Lavrich, T M. Korter, Gerald T. Fraser, David F. Plusquellic, A C. Samuels
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.
, Lavrich, R.
, Korter, T.
, Fraser, G.
, Plusquellic, D.
and Samuels, A.
Submillimeter and THz Detection of Chemical-Warfare Agents in Air, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD
(Accessed October 2, 2023)