Signals of CO2 Laser Radiation Backscattering by Water Aerosol with Mineral and Organic Impurities

We present the results of experiments on recording backscattered radiation of a CO2 laser, discretely tunable within R and P branches in the 9.4–10.6 μm spectral region, from aqueous aerosols obtained from solutions of organic and inorganic substances. Some features of the recorded spectra of the dissolved substances are determined. The spectra are shown to be significantly different for aqueous aerosols with organic and inorganic impurities.