Saturation spectra of low lying states of Nitrogen: reconciling experiment with theory |
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Authors: | T?Carette M?Nemouchi P?J?nsson M?Godefroid |
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Institution: | 1.Service de Chimie quantique et Photophysique, CP160/09,
Université Libre de Bruxelles,Brussels,Belgium;2.Laboratoire d’électronique Quantique, Faculté de Physique,USTHB,El-Alia, Algiers,Algeria;3.Center for Technology Studies, Malm? University,Malm?,Sweden |
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Abstract: | The hyperfine constants of the levels 2p 2 \((^{3}\)P)3s 4P J , 2p 2 \((^3\)P)3p 4P\(^o_J\) and 2p 2 \((^3\)P)3p 4D\(^o_J\), deduced by Jennerich et al. Eur. Phys. J. D 40, 81 (2006)] from the observed hyperfine structures of the transitions 2p 2 \((^3\)P)3s 4P J \(\rightarrow\) 2p 2 \((^3\)P)3p 4P\(^o_{J'}\) and 2p 2 \((^3\)P)3s 4P J \(\rightarrow\) 2p 2 \((^3\)P)3p 4D\(^o_{J'}\) recorded by saturation spectroscopy in the near-infrared,strongly disagree with the ab initio values of Jönsson et al. J. Phys. B: At. Mol.Opt. Phys. 43, 115006 (2010)].We propose a new interpretation of the recorded weak spectral lines. If the latter are indeed reinterpreted as crossover signals, a new set of experimental hyperfine constants is deduced, in very good agreement with the ab initio predictions. |
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