Measurement of hyperfine structure of sodium 3P
1/2,3/2 states using optical spectroscopy

Wijngaarden, W. A. van; Li, J.

doi:10.1007/bf01425925

Cited by 23 publications

(5 citation statements)

References 14 publications

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“…Note that the crossover resonance is only 29 MHz away, which is not very far given that the experimentally obtained linewidth in SAS is around 10 MHz. The result for the interval from these measurements was 57.723 (15) MHz. The slightly large error is due to the nearby crossover resonance which causes some peak pulling.…”

Section: Linementioning

confidence: 91%

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High-precision measurement of hyperfine structure in theDlines of alkali atoms

Das¹,

Natarajan²

2008

J. Phys. B: At. Mol. Opt. Phys.

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We have measured hyperfine structure in the first-excited P state (D lines) of all the naturally-occurring alkali atoms. We use high-resolution laser spectroscopy to resolve hyperfine transitions, and measure intervals by locking the frequency shift produced by an acousto-optic modulator to the difference between two transitions. In most cases, the hyperfine coupling constants derived from our measurements improve previous values significantly.

show abstract

Section: Linementioning

confidence: 91%

“…The value of the hyperfine constant is compared to the recommended value and another published result [15] in Fig. 5.…”

Section: Linementioning

confidence: 99%

High-precision measurement of hyperfine structure in theDlines of alkali atoms

Das¹,

Natarajan²

2008

J. Phys. B: At. Mol. Opt. Phys.

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“…Results of our calculations of magnetic-dipole hyperfine constants A (MHz) for ns, np 1/2 and np 3/2 states in Na, K, Rb and Cs are given in Table XII together with experimental values from [33][34][35][36][37]. The nuclear magnetic moments used in the calculations are weighted averages of values taken from the tabulation by Raghavan [38]; they are listed in Table XIII.…”

Section: Hyperfine Constantsmentioning

confidence: 99%

Relativistic many-body calculations of energy levels, hyperfine constants, electric-dipole matrix elements, and static polarizabilities for alkali-metal atoms

1999

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Removal energies and hyperfine constants of the lowest four ns, np 1/2 and np 3/2 states in Na, K, Rb and Cs are calculated; removal energies of the n=7-10 states and hyperfine constants of the n=7 and 8 states in Fr are also calculated. The calculations are based on the relativistic single-double (SD) approximation in which single and double excitations of Dirac-Hartree-Fock (DHF) wave functions are included to all-orders in perturbation theory. Using SD wave functions, accurate values of removal energies, electric-dipole matrix elements and static polarizabilities are obtained, however, SD wave functions give poor values of magnetic-dipole hyperfine constants for heavy atoms. To obtain accurate values of hyperfine constants for heavy atoms, we include triple excitations partially in the wave functions. The present calculations provide the basis for reevaluating PNC amplitudes in Cs and Fr.

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“…Contributions of the various non-linear terms to the hyperfine constants are given in Table V. The comparison of our results with experiment [36,37,38,39,40,41,42,43] is also given. The structure of Table V is identical to that of Table III.…”

Section: Hyperfine Constantsmentioning

confidence: 77%

Relativistic coupled-cluster single-double method applied to alkali-metal atoms

et al. 2007

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A relativistic version of the coupled-cluster single-double ͑CCSD͒ method is developed for atoms with a single valence electron. In earlier work, a linearized version of the CCSD method ͑with extensions to include a dominant class of triple excitations͒ led to accurate predictions for energies, transition amplitudes, hyperfine constants, and other properties of monovalent atoms. Further progress in high-precision atomic structure calculations for heavy atoms calls for improvement of the linearized coupled-cluster methodology. In the present work, equations for the single and double excitation coefficients of the Dirac-Fock wave function, including all nonlinear coupled-cluster terms that contribute at the single-double level, are worked out. Contributions of the nonlinear terms to energies, electric-dipole matrix elements, and hyperfine constants of low-lying states in alkali-metal atoms from Li to Cs are evaluated and the results are compared with other calculations and with precise experiments.

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Measurement of hyperfine structure of sodium 3P 1/2,3/2 states using optical spectroscopy

Cited by 23 publications

References 14 publications

High-precision measurement of hyperfine structure in theDlines of alkali atoms

High-precision measurement of hyperfine structure in theDlines of alkali atoms

Relativistic many-body calculations of energy levels, hyperfine constants, electric-dipole matrix elements, and static polarizabilities for alkali-metal atoms

Relativistic coupled-cluster single-double method applied to alkali-metal atoms

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