Dynamic Multicomponent Optical Analyzer for Chemical Weapon (CW) Exposure Studies

Spectral Sciences Inc. proposes to develop a prototype sensor for real-time trace-level analysis of complex multicomponent gas mixtures, specifically those containing Chemical Weapon (CW) agents and interferents. The instrument is based on high power quantum cascade lasers and photocoustic spectroscopy detection. Advanced detection algorithms take advantage of wide spectral coverage to provide high sensitivity with low occurrence of false positives. The laser source features digitally controlled fast wavelength tuning and wavelength modulation. An integrated-optics acoustic transducer provides noise-cancelling gas absorption signal acquisition. In Phase I and Phase I Option tasks, the digitally tunable and lockable laser source will be demonstrated, followed by the delivery of a laboratory prototype by the end of Phase II.