Specific mass shift measurements in rubidium by Doppler-free two-photon transitions

T. Kong*, A. Gorelov, C. Höhr, T. Wiebe, A. Chatwin-Davies, A. Berman, S. Behling, D. Ashery, G. Gwinner, M. R. Pearson, J. A. Behr

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We measured the isotope shifts between Rb isotopes (86m, 86g, 81) and 87Rb for the 5S1/2 to 5D5/2 transition using the Doppler-free two-photon transition technique. By making a King plot, the difference between the specific mass shift constants of the 5S1/2 and 5D5/2 states is deduced to be 77(33) GHz amu. In addition, we measured the hyperfine constants of the 5D5/2 states in those three Rb isotopes, and we have determined an improved ground state hyperfine constant in 86mRb, A(5S1/2) = 563.04(5) MHz.

Original languageEnglish
Article number215004
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number21
StatePublished - 14 Nov 2011


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