Isotope shifts and hyperfine structure in near-ultraviolet transitions of Pb I by Doppler-free saturation spectroscopy

S. Bouazza, D. S. Gough, P. Hannaford, R. M. Lowe, and M. Wilson
Phys. Rev. A 63, 012516 – Published 13 December 2000
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Abstract

Isotope shifts and hyperfine structures have been determined for the three near-ultraviolet transitions 405.8 nm (6s26p23P26s26p7s3P1o), 368.3 nm (6s26p23P16s26p7s3P0o), and 364.0 nm (6s26p23P16s26p7s3P1o) in stable isotopes of Pb I using the technique of saturated absorption spectroscopy in a sputtered vapor. The isotope shifts for these transitions and the magnetic hyperfine interaction constants for the 6s26p23P1,2 metastable levels are the first Doppler-free determinations for these systems reported in the literature to our knowledge. Combined with experimental data, previously given in the literature, and pseudorelativistic Hartree-Fock estimates, the field shifts (FS’s) of seven relevant configurations are deduced: FS(6s26p7s)=2461MHz, FS(6s26p9p)=1838MHz, FS(6s26p6d)=1820MHz, FS(6s26p7d)=1668MHz, FS(6s26p8s)=2132MHz, FS(6s26p7p)=395MHz, and FS(6s26p5f)=461MHz, referred to 6s26p2. The hyperfine-structure integrals deduced from the experimental A factors for p electrons of the ground configuration 6s26p2 are in good agreement with results of ab initio calculations.

  • Received 24 July 2000

DOI:https://doi.org/10.1103/PhysRevA.63.012516

©2000 American Physical Society

Authors & Affiliations

S. Bouazza1,*, D. S. Gough2, P. Hannaford2, R. M. Lowe2, and M. Wilson3

  • 1Département de Physique, Faculté des Sciences, Boîte Postale 1039, 51687 Reims, France
  • 2CSIRO Manufacturing Science and Technology, Clayton, Victoria 3169, Australia
  • 3Department of Physics, Royal Holloway College, University of London, Egham, Surrey TW20 OEX, United Kingdom

  • *Email address: safa.bouazza@univ-reims.fr

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Vol. 63, Iss. 1 — January 2001

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