Results of photoacoustic measurements of absorption of 266 nm-laser pulses (the fourth harmonics of a YAG laser) by mixtures of water vapor and nitrogen, depending on the radiation intensity (0.5–10 MW cm−2) and H2O partial pressure (0–10 mbar), are presented. It is shown that the linear absorption (in the given range of intensities) increases with H2O partial pressure in a range 0–5 mbar and remains almost stable in a range 5–10 mbar exceeding the absorption in the pure nitrogen only by two orders of magnitude.
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Original Russian Text © A.N. Kuryak, M.M. Makogon, Yu.N. Ponomarev, B.A. Tikhomirov, 2014, published in Optica Atmosfery i Okeana.
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Kuryak, A.N., Makogon, M.M., Ponomarev, Y.N. et al. Photoacoustic measurements of UV laser Pulse (266 nm) absorption in mixtures of water vapor with nitrogen. Atmos Ocean Opt 27, 71–74 (2014). https://doi.org/10.1134/S1024856014010072