Publication
Physical Review Letters
Paper

Level Crossing in CH4 Observed by Nonlinear Absorption

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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. © 1969 The American Physical Society.

Date

27 Oct 1969

Publication

Physical Review Letters

Authors

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