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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 7 — Apr. 1, 2009
  • pp: 893–895

Accurate measurements of transition frequencies and isotope shifts of laser-trapped francium

S. Sanguinetti, R. Calabrese, L. Corradi, A. Dainelli, A. Khanbekyan, E. Mariotti, C. de Mauro, P. Minguzzi, L. Moi, G. Stancari, L. Tomassetti, and S. Veronesi  »View Author Affiliations


Optics Letters, Vol. 34, Issue 7, pp. 893-895 (2009)
http://dx.doi.org/10.1364/OL.34.000893


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Abstract

An interferometric method is used to improve the accuracy of the 7 S 7 P transition frequencies of three francium isotopes by 1 order of magnitude. The deduced isotope shifts for Fr 209 211 confirm the ISOLDE data. The frequency of the D 2 transition of Fr 212 —the accepted reference for all Fr isotope shifts—is revised, and a significant difference with the ISOLDE value is found. Our results will be a benchmark for the accuracy of the theory of Fr energy levels, a necessary step to investigate fundamental symmetries.

© 2009 Optical Society of America

OCIS Codes
(020.3260) Atomic and molecular physics : Isotope shifts
(020.7010) Atomic and molecular physics : Laser trapping
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6360) Spectroscopy : Spectroscopy, laser

ToC Category:
Atomic and Molecular Physics

History
Original Manuscript: December 4, 2008
Revised Manuscript: January 23, 2009
Manuscript Accepted: February 9, 2009
Published: March 17, 2009

Citation
S. Sanguinetti, R. Calabrese, L. Corradi, A. Dainelli, A. Khanbekyan, E. Mariotti, C. de Mauro, P. Minguzzi, L. Moi, G. Stancari, L. Tomassetti, and S. Veronesi, "Accurate measurements of transition frequencies and isotope shifts of laser-trapped francium," Opt. Lett. 34, 893-895 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-7-893

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