Isotope shifts and hyperfine structure in the transitions in calcium II

Issue		Eur. Phys. J. D Volume 2, Number 1, April 1998


Page(s)		33 - 39
DOI		http://dx.doi.org/10.1007/s100530050107

Contents | PDF_file_(394 Ko)

Eur. Phys. J. D 2, 33-39

Isotope shifts and hyperfine structure in the $\bf{ 3d~^2D_J \rightarrow 4p~^2P_J}$ transitions in calcium II

W. Nörtershäuser - K. Blaum - K. Icker - P. Müller - A. Schmitt - K. Wendt - B. Wiche

Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany

Received: 19 September 1997 / Revised: 5 December 1997 / Accepted: 27 January 1998

Abstract
The isotope shift and hyperfine structure in the three $\rm 3d ~^2D_{3/2,5/2} \rightarrow 4p~^2P_{1/2,3/2}$ - transitions in Ca II have been studied by fast ion beam collinear laser spectroscopy for all stable Ca isotopes. The metastable 3d states were populated within the surface ionization source of a mass separator with a probability of about 0.1%. After resonant excitation to the 4p levels with diode laser light around 850 nm the uv photons from the $\rm 4p \rightarrow 4s$ transitions to the ground state were used for detection. Hyperfine structure parameters A and B for the odd isotope ⁴³Ca, as evaluated from the splittings observed, agree well with theoretical predictions from relativistic many-body perturbation theory. Field shift constants $K^{\rm FS}$ and specific mass shift constants $K^{\rm SMS}$ were extracted from the measured isotope shifts and are discussed in comparison with expectation values from theory.

PACS
32.10.Fn Fine and hyperfine structure

Author for correspondance: W.Noertershaeuser@larissa.physik.uni-mainz.de

Contents | PDF_file_(394 Ko)

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