Measurement of the absorption spectrum of atmospheric air in the 5850–5930 Å range by intraresonator laser spectroscopy

The intraresonator laser spectroscopy was used in a determination of the absorption spectrum of air in the 5850–5930 Å range. This spectrum was compared with the published information obtained by conventional methods using optical paths in the atmosphere amounting to many kilometers. Atmospheric absorption lines of NO₂ were observed. The absorption coefficient of water vapor at the center of the 5919.054 Å line was determined at a pressure of 150 mm Hg.