The Ammonia Spectrum and Line Shapes Near 1.25-cm Wave-Length
- 1 November 1946
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 70 (9-10), 665-671
- https://doi.org/10.1103/physrev.70.665
Abstract
The ammonia "inversion" lines near 1.25-cm wave-length are resolved, their widths being decreased at low pressures to 200 kilocycles. Line shapes, intensities, and frequencies are measured and correlated with theory. Calculated intensities and Lorentz-type broadening theory fit experimental results if frequency of collision is fifteen times greater than that measured by viscosity methods. Splitting due to rotation is in fair agreement with a recalculation of theoretical values. A saturation effect is observed with increase of power absorbed per molecule and an interpretation made.Keywords
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