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Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 9 — Oct. 3, 2011

Radiative lifetime measurements in neutral lanthanum using time-resolved laser-induced fluorescence spectroscopy in supersonic free-jet

Suresh Yarlagadda, Sheo Mukund, and S. G. Nakhate  »View Author Affiliations

JOSA B, Vol. 28, Issue 8, pp. 1928-1933 (2011)

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Radiative lifetimes for 63 odd-parity energy levels of neutral lanthanum, in the range 13 , 260 30 , 965 cm 1 , have been measured using time-resolved laser-induced fluorescence technique in a supersonic free-jet produced by laser vaporization of lanthanum metal. To the best of our knowledge, lifetimes for 45 levels are reported for the first time. The present lifetimes, with a few exceptions, are found to be in good agreement with the previously reported data. Lifetime values reported in this work fall in the range 9.5 to 313 ns and are accurate to ± 10 % . The levels belong to the 5 d 6 s 6 p , 4 f 6 s 2 , 6 s 2 6 p , 5 d 2 6 p , and 4 f 5 d 6 s electronic configurations.

© 2011 Optical Society of America

OCIS Codes
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6500) Spectroscopy : Spectroscopy, time-resolved

ToC Category:

Original Manuscript: May 19, 2011
Manuscript Accepted: June 9, 2011
Published: July 15, 2011

Virtual Issues
Vol. 6, Iss. 9 Virtual Journal for Biomedical Optics

Suresh Yarlagadda, Sheo Mukund, and S. G. Nakhate, "Radiative lifetime measurements in neutral lanthanum using time-resolved laser-induced fluorescence spectroscopy in supersonic free-jet," J. Opt. Soc. Am. B 28, 1928-1933 (2011)

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