Rabi oscillations and rapid-passage effects in the molecular-beam CO/sub 2/-laser Stark spectroscopy of CH/sub 3/F

Journal Article · Sun Sep 01 00:00:00 EDT 1985 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.32.1451· OSTI ID:5264483

Adam, A G; Gough, T E; Isenor, N R; Scoles, G

sub-Doppler molecular-beam laser Stark spectroscopy has been employed to produce high-contrast Rabi oscillations in the ..nu../sub 3/ band of CH/sub 3/F. By varying the intensity of the cw CO/sub 2/ laser, up to five complete oscillations were observed before the phenomenon was washed out by rapid-passage effects and damping mechanisms. Besides being useful in clarifying key features of coherent ir molecular-beam spectroscopy, the observation of Rabi oscillations provides one of the most accurate means of directly measuring transition dipole moments. Analysis of the present data on three rovibrational transitions, Q(1,1) -1reverse arrow0, P(1,0) 0reverse arrow0, and R(1,1) 0reverse arrow1, has yielded a rotationless transition dipole moment of 0.21 +- 0.01 D for the ..nu../sub 3/ = 1reverse arrow0 vibration. This result is in agreement with values estimated from both band-intensity and absorption-coefficient data in the literature.

• Research Organization: Centre for Molecular Beams and Laser Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
• OSTI ID: 5264483
• Journal Information: Phys. Rev. A; (United States), Vol. 32:3
• Country of Publication: United States
• Language: English

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74 ATOMIC AND MOLECULAR PHYSICS
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