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Browsing Faculty & Staff Research by Author "Adam, A. G."
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Item Hyperfine Analysis of the (2, 0) [18.3]3-X3Δ3 Transition of Cobalt Monoboride(Elsevier, 2019) Dore, J. M.; Adam, A. G.; Tokaryk, D. W.; Linton, C.High-resolution laser-induced fluorescence spectra of the (2, 0) [18.3]3-X3Δ3 transition of cobalt monoboride (CoB) have been recorded. We report updated rotational parameters for both the [18.3]3 (v′ = 2) and X3Δ3 (v″ = 0) states of Co11B, as well as newly determined hyperfine interaction parameters. The observed hyperfine splitting is mainly due to the nuclear spin of 59Co (I = 7/2, μ/μN = 4.627); the 11B (I = 3/2, μ/μN = 2.689) interaction only results in broadening of the individual hyperfine transitions. The magnetic hyperfine constants help confirm the ground state electronic configuration, (8σ)2(3π)4(1δ)3(9σ)1, and provide more insight into the configurational mixing in the excited state.Item Pulsed-laser spectroscopy of the highly excited C 2 and 1 2 states of MgH(Elsevier, 2019) Caron, N. S.; Tokaryk, D. W.; Adam, A. G.We present the results of laser-ablation molecular jet experiments on the high-lying C 2Π and 1 2∆ electronic states of MgH, obtained via laser-induced fluorescence with frequency-doubled pulsed laser beams and with a visible- visible double resonance technique. The C 2Π state is examined for the first time in nearly 50 years. The 1 2∆ state was last reported in 1937, when it was misassigned as the D 2Σ− state. These two states are fit with a modern standard Hamiltonian. Finally, measurements of the lifetime of the F2 J = 1.5 f level in the v = 0 A 2Π state are reported; lifetimes of levels of the C 2Π state were very short (less than the 10 ns lower limit available in our experiment).