12 February 1993 Potentiality of intermodulated electric resonance, photoacoustic, and photothermal spectroscopies for ground-based in-situ tracking of small polar molecules in polluted air
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Abstract
The concept of intermodulated photoacoustics combined with the laser electric resonance spectroscopy for accurate, selective, and sensitive measurements of atmospheric pollution is discussed. Polar molecules such as ammonia, nitric acid, and water vapor adsorb to solid walls and the sampling feedline causing concentration loss and hence erroneous readings. A survey of other novel techniques for studies of ammonia and other gases is given.
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Dane D. Bicanic, Dane D. Bicanic, Mladen Franko, Mladen Franko, Hans Sauren, Hans Sauren, } "Potentiality of intermodulated electric resonance, photoacoustic, and photothermal spectroscopies for ground-based in-situ tracking of small polar molecules in polluted air", Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140232; https://doi.org/10.1117/12.140232
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