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The European Physical Journal D

, Volume 64, Issue 2–3, pp 227–238 | Cite as

The states 11Σ u + , 11Πu and 21Σ u + of Sr2 studied by Fourier-transform spectroscopy

  • A. SteinEmail author
  • H. Knöckel
  • E. Tiemann
Regular Article Molecular Physics and Chemical Physics

Abstract

A high resolution study of the electronic states 11Σ u + and 11 Π u which belong to the asymptote 41D + 51S and of the state 11Σ u + , which correlates to the asymptote 51P + 51S, is performed by Fourier-transform spectroscopy of fluorescence progressions induced by single frequency laser excitation. Precise descriptions of the potentials up to 2000 cm-1 above the bottom are derived and compared to currently available ab initio calculations. Especially for the state 11Σ u + large deviations are found. Rather weak and local perturbations are observed for the states 11 Π u and 21Σ u + , while a strong coupling of the state 11Σ u + to the component Ω=0 u + of the state 13 Π u , which belongs to the asymptote 53P + 51S, is indicated.

Keywords

Dunham 86Sr Internuclear Distance Potential Energy Curve Potential Minimum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Supplementary material

10053_2011_21_MOESM1_ESM.zip (313 kb)
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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Institut für QuantenoptikLeibniz Universität HannoverHannoverGermany

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