A unique ultraviolet laser system has been developed for a lidar intended to detect nitrogen oxide molecules in the atmosphere. The electric-discharge KrF laser system is capable of producing a highly coherent laser beam with practically the same energy over a spectral range of 247.5–249.5 nm. At the edge of the amplification band in the range 247.5–247.8 nm, the system produces a beam of energy 0.3 J, pulse duration 16 ns, and spectral line width 2 pm. Atmospheric sounding by using this beam with an energy density of 200 mJ/cm2 in the scattered signal has detected noise in the 226 and 236 nm bands whose intensity increases the laser beam pulse repetition rate and energy density.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 6, pp. 13–18, June, 2012.
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Panchenko, Y.N., Andreev, M.V., Bobrovnikov, S.M. et al. Narrow-band tunable laser system for a lidar facility. Russ Phys J 55, 609–615 (2012). https://doi.org/10.1007/s11182-012-9856-8
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DOI: https://doi.org/10.1007/s11182-012-9856-8