Stark quantum beat spectroscopy: The vibrational dependence of the dipole moment in the A1Σ+ state of BaO |
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Authors: | Hartmut S. Schweda Alois Renn Horst Büsener Achim Hese |
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Affiliation: | Institut für Strahlungs- und Keraphysik, Technische Universität Berlin, Hardenbergstrasse 36, D-1000 Berlin 12, West Germany |
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Abstract: | The method of quantum beat spectroscopy following pulsed dye laser excitation is applied to measure electric field splittings in excited states of the 138Ba16O molecule. Stark quantum beats were observed in the fluorescent decay of the A1Σ+ (ν′ = 0, 1, 2, 3, J′ = 1) states. From the observed beat frequencies values of electric dipole moments in different vibrational states were derived. The results are: μ(ν′ = 0) = 2.98(7) D, μ(ν′ = 1) = 2.66(7) D, μ(ν′ = 2)3.15(8) D and μ(ν′ = 3) = 3.18(8) D. |
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