The applicability of a KTA crystal-based laser system with optical parametric oscillators (OPO) generation to lidar sounding of the atmosphere in the spectral range 3–4 μm is studied in this work. A technique developed for lidar sounding of trace atmospheric gases (TAG) is based on differential absorption lidar (DIAL) method and differential optical absorption spectroscopy (DOAS). The DIAL-DOAS technique is tested to estimate its efficiency for lidar sounding of atmospheric trace gases. The numerical simulation performed shows that a KTA-based OPO laser is a promising source of radiation for remote DIAL-DOAS sounding of the TAGs under study along surface tropospheric paths. A possibility of using Ophir PE25-C and PE10-C piezoelectric sensors for the DIAL gas analysis of the atmosphere is shown. Echoes of the broadband lidar in the above ranges are experimentally detected.
O. V. Kharchenko, O. A. Romanovskii, S. A. Sadovnikov, and S. V. Yakovlev, "Optical parametric oscillator lidar for the gas constituents sensing in the spectral range of 3-4 μm," Proc. SPIE 10429, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing XIII, 1042904 (Presented at SPIE Remote Sensing: September 11, 2017; Published: 4 October 2017); https://doi.org/10.1117/12.2278037.
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