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Doppler free “dark resonances” for hyperfine measurements and isotope shifts in Ca+ isotopes in a Paul trap

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Zeitschrift für Physik D Atoms, Molecules and Clusters

Abstract

We have observed “dark resonances” in theA-type level structure, formed by the 4S1/2 ground state, the 4P1/2 excited state and the low lying metastable 3D3/2 state in the Calcium ion, confined in a Paul radio-frequency trap. These Doppler-free and potentially very narrow resonances were used to determine the magnetic dipole hyperfine interaction constant A for the 4P1/2 and 3D3/2 state of43Ca+, giving −142(8) MHz and −48.3(1.6) MHz, respectively. From measurements of the P-D (E1) and S-D (E2) transition wavelength in a mixture of43Ca+ and40Ca+ we determined the isotope shifts of these lines.

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Authors and Affiliations

  1. Institut für Physik, Universität Mainz, D-55099, Mainz, Germany

    F. Kurth, T. Gudjons, B. Hilbert, T. Reisinger & G. Werth

  2. Department of Physics, Chalmers University of Technology and Göteborg University, S-412 96, Göteborg, Sweden

    A. -M. Mårtensson-Pendrill

Authors
  1. F. Kurth
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  2. T. Gudjons
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  3. B. Hilbert
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  4. T. Reisinger
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  5. G. Werth
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  6. A. -M. Mårtensson-Pendrill
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Kurth, F., Gudjons, T., Hilbert, B. et al. Doppler free “dark resonances” for hyperfine measurements and isotope shifts in Ca+ isotopes in a Paul trap. Z Phys D - Atoms, Molecules and Clusters 34, 227–232 (1995). https://doi.org/10.1007/BF01437567

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  • DOI: https://doi.org/10.1007/BF01437567

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