Rydberg Series of Yb

The measurement of isotope shifts and hyperfine structures of 6snd Rydberg states of Yb (cf. Section 2.1.1), reported by Barbier and 

With increasing principal quantum number n, the hyperfine levels of the odd isotopes were observed to converge toward the corresponding hyperfine components of the Yb II ground state. The isotope shifts between the even 

The electronic structure of Rydberg states can be probed by a large variety of atomic properties such as term values, lifetimes, oscillator strengths, Zeeman splitting factors. Stark and diamagnetic shifts, as well as 

We hope that high-resolution laser spectroscopy of Rydberg states of two-electron systems, which has developed rapidly within the last three years and has contributed considerably to our knowledge of the electronic structure of such states, will continue to serve this purpose. 

Feneuille and P. Jacquinot, in Atomic and Molecular Physics, Vol. 17 (edited by D. Bates and B. Bederson), Academic, New York (1981), p. 99. 

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