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Deperturbation study of the state of C2 by applying degenerate and two-color resonant four-wave mixing

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Title: Deperturbation study of the state of C2 by applying degenerate and two-color resonant four-wave mixing
Authors: Bornhauser, P.1, Knopp, G.1, Gerber, T.1, Radi, P.P. peter.radi@psi.ch
Source: Journal of Molecular Spectroscopy. Aug2010, Vol. 262 Issue 2, p69-74. 6p.
Subjects: Quantum perturbations, Spectrum analysis, Least squares, Coupling constants, Particles (Nuclear physics), Molecular spectroscopy
Abstract: Abstract: The potential of four-wave mixing spectroscopy in combination with a discharge slit-jet source is explored by performing an analysis of the perturbations occurring between vibronic levels of the and states of C2. Unambiguous assignments of perturbed transitions are achieved by intermediate level labeling in the state of the Swan system and results in the re-assignment of several line positions found in the literature. Furthermore, extra transitions are observed and assigned in a straightforward manner that originate from the perturbing electronic state. Significantly perturbed rotational transitions in the (4,3) band of the Swan system are reported for the first time. A least-squares fit to 35 perturbed and perturbing transitions yields the vibronic origin, rotational and spin-spin coupling constant of the state as well as the spin-orbit and L-uncoupling parameters for the interaction between the and states. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Molecular Spectroscopy is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Deperturbation study of the state of C<subscript>2</subscript> by applying degenerate and two-color resonant four-wave mixing
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  Data: <searchLink fieldCode="AR" term="%22Bornhauser%2C+P%2E%22">Bornhauser, P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Knopp%2C+G%2E%22">Knopp, G.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gerber%2C+T%2E%22">Gerber, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Radi%2C+P%2EP%2E%22">Radi, P.P.</searchLink><i> peter.radi@psi.ch</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Molecular+Spectroscopy%22">Journal of Molecular Spectroscopy</searchLink>. Aug2010, Vol. 262 Issue 2, p69-74. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Quantum+perturbations%22">Quantum perturbations</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Least+squares%22">Least squares</searchLink><br /><searchLink fieldCode="DE" term="%22Coupling+constants%22">Coupling constants</searchLink><br /><searchLink fieldCode="DE" term="%22Particles+%28Nuclear+physics%29%22">Particles (Nuclear physics)</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+spectroscopy%22">Molecular spectroscopy</searchLink>
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  Data: Abstract: The potential of four-wave mixing spectroscopy in combination with a discharge slit-jet source is explored by performing an analysis of the perturbations occurring between vibronic levels of the and states of C2. Unambiguous assignments of perturbed transitions are achieved by intermediate level labeling in the state of the Swan system and results in the re-assignment of several line positions found in the literature. Furthermore, extra transitions are observed and assigned in a straightforward manner that originate from the perturbing electronic state. Significantly perturbed rotational transitions in the (4,3) band of the Swan system are reported for the first time. A least-squares fit to 35 perturbed and perturbing transitions yields the vibronic origin, rotational and spin-spin coupling constant of the state as well as the spin-orbit and L-uncoupling parameters for the interaction between the and states. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Molecular Spectroscopy is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jms.2010.05.008
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      – Code: eng
        Text: English
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      – SubjectFull: Spectrum analysis
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      – SubjectFull: Least squares
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      – SubjectFull: Coupling constants
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      – SubjectFull: Particles (Nuclear physics)
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      – SubjectFull: Molecular spectroscopy
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              Text: Aug2010
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