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Optics Communications

Saturation spectroscopy measurements of collisionally-induced population decay rates in NH3 after inversion by optical adiabatic rapid passage

S. M. Hamadani, Norman A. Kurnit, Ali Javan

Published Jul 1, 1976• 0 citations
Publisher
DOI
10.1016/0030-4018(76)90453-3

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I report the observation of population inversion by optical adiabatic rapid passage. These observations, on an NH3{\mathrm{NH}}_{3}NH3​ infrared transition with all the relevant parameters known, agree with theoretical expectations. The pressure dependence of T1{T}_{1}T1​, obtained by this technique, makes possible the first estimate of the collision-induced rotational lifetime of NH3{\mathrm{NH}}_{3}NH3​ in an excited band, which is significantly longer than the rotational lifetime in the ground vibrational band.