Simultaneous multi-wave probing by using the differential absorption method could help to unveil fast chemical
processes (for example - photo-stimulated) in atmosphere. The scheme of multi-wave finely tuned laser source, suitable
for simultaneous probing a few atmosphere constituents and/or chemicals with the above mentioned method, is
suggested and tested.
KEYWORDS: Absorption, LIDAR, NOx, Remote sensing, Laser scattering, Signal detection, Ultraviolet radiation, Solid state physics, Liquids, Digital signal processing
The scheme of multiwaves laser irradiator (MWLI) for remote sounding design is suggested. Experimental example of 3-waves laser irradiator, consisting of XeCl*-excimer laser complex and added by an SRS-converters, is describing. The possibility of simultaneous generation at three lines (273 nm, 308 nm and 353 nm) is demonstrated. The possibilities of discrete (Raman) conversion in wide spectral range and fine tuning within up to 1 nm is demonstrated, too.
Possibility of application of the photoacoustic methods for determination of threshold of failure of plates caused by power light pulses (up to 300 MW/mm2) of the excimer XeCl* laser is demonstrated. The original system on the basis of the XeCl* laser for a high-precision processing of sapphire plates and other construction materials is developed.
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