Knowledge Bank

Spectra of the $4.5\mu N2O$ band were obtained after the radiation passed through two cells containing mixtures of $N2O$ and $N2$. With the total pressure and absorber concentration of one cell adjusted so that the absorption by it alone lay essentially in the square root region where the absorption is approximately proportional to the square root of the total pressure and absorber concentration, the spectra were obtained as the total pressure and $N2O$ concentration in the second cell were varied over a wide range. The total integrated absorption of both cells was found to be expressed in a form similar to that obtained by Gryvnak and $Shaw1$ for the absorption near $1.7\mu$ by two gas samples of CO.

Author Institution: Department of Physics and Astronomy, Laboratory of Molecular Spectroscopy and Infrared Studies, The Ohio State University