Vol. 6, issue 04, article # 4

pdf Ponomarev Yu. N., Tyryshkin I. S. Spectrofotometric complex for measuring absorption of laser radiation by molecular gases in the IR, visible, and UV regions. // Atmospheric and oceanic optics. 1993. V. 6. No. 04. P. 360-368.
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In this paper we present a description of a spectrophotometer complex based on a multipass 110-m-length gas chamber aimed at studying energy losses of laser radiation of IR, visible, and UV regions in molecular gas media and in air. We also discuss key aspects of a technique for measuring absorption coefficients. Measurements of the absorption of an Nd:YAG laser emission by air at the fundamental frequency and its second and fourth harmonics are presented.