Vol. 3, issue 04, article # 5

pdf Kozin G. I., Petrov V. V., Protsenko E. D. A thermorefractive phase technique for analyzing gas composition of the atmosphere with a two-mode gas laser. // Atmospheric and oceanic optics. 1990. V. 3. No. 04. P. 329-332.
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Abstract:

A thermorefractive phase technique to measure minor atmospheric gas components is suggested. It was tested experimentally for estimating the ethylene (C2H4 )content in the air. The effect of certain parameters upon the level of the recorded signal was assessed. The threshold sensitivity of the technique was experimentally estimated at 2•10-8cm-1•W.