Shape of generation pulses and analytical characteristics of differential absorption lidar based on the NH3-CO2 laser

N. G. Leschenko; V. A. Stepanov; A. B. Yastrebkov

doi:10.1117/12.501432

19 June 2003 Shape of generation pulses and analytical characteristics of differential absorption lidar based on the NH₃-CO₂ laser

N. G. Leschenko, V. A. Stepanov, A. B. Yastrebkov

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Proceedings Volume 5066, Lasers for Measurements and Information Transfer 2002; (2003) https://doi.org/10.1117/12.501432
Event: Lasers for Measurements and Information Transfer 2002, 2002, St. Petersburg, Russian Federation

Abstract

The method of differential absorption with scattering (DAS) for atmosphere probing by means of NH₃-CO₂ laser system on the two wavelengths of infrared region far separated from each other is reviewed. The most perspective scheme of remote probing of atmosphere by such method is determined. The efficiency of NH₃-CO₂ lidar in region 9 - 13 μm is shown. There was found, that using of passive synchronization of longitudinal modes does not require corrections, taking into account the differences in the generation pulses shape of NH₃ and CO₂ lasers, if the analysis of a registered signal will be fulfilled on the front of a scattered radiation. The calculations of the probing sensitivity and remoteness on some components of atmosphere polluting, such as CCI₄, NH₃ and CFCl₃ there carried out with lidar equation helping.

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N. G. Leschenko, V. A. Stepanov, and A. B. Yastrebkov "Shape of generation pulses and analytical characteristics of differential absorption lidar based on the NH₃-CO₂ laser", Proc. SPIE 5066, Lasers for Measurements and Information Transfer 2002, (19 June 2003); https://doi.org/10.1117/12.501432

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KEYWORDS

LIDAR

Carbon dioxide lasers

Molecules

Absorption

Laser scattering

Pulsed laser operation

Signal attenuation

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