Level Crossing in CObserved by Nonlinear Absorption
- 27 October 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 23 (17), 951-954
- https://doi.org/10.1103/physrevlett.23.951
Abstract
Stark-tuned level crossing resonances in an excited vibration-rotation state of methane were detected through nonlinear optical absorption. The signal accurately follows a Lorentzian line shape with a 200-kHz minimum width. Pressure broadening studies yield the rotational relaxation in the excited vibrational state.Keywords
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