Vol. 33, issue 03, article # 9

Abstract:

The results of laboratory experiments on recording the backscattered IR laser radiation from aerosol particles containing organic impurities are presented. The studies were performed at the laboratory test bench according to the lidar sensing scheme along a controlled optical path. Aqueous aerosol and aqueous solutions were used as model media. Aerosol and solutions contained organic impurities: tryptophan, isopropyl alcohol, glycerin, and nicotinamide adenine dinucleotide (NADH). For research in the IR range, the experimental complex was modified. The UV laser was replaced with an IR laser during this upgrade. A liquid-nitrogen-cooled mercury-cadmium-telluride based IR detector was used to record backscatter signals. A possibility of using IR lasers with scanning the radiation frequency for remote sensing of atmospheric organic aerosols is shown.

Keywords:

laboratory simulation, CO2 laser, long-wave lidar, remote sensing

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