Optics and Spectroscopy

Measurement of polarizabilities of 5D levels of rubidium in a magnetic trap

Stepan Snigirev, Artem A. Golovizin, Sergey Pyatchenkov, Dmitry O. Tregubov, Alexey V. Akimov, N. Kolachevsky, В. Н. Сорокин

Published Oct 1, 2015• 1 citation

Publisher

Abstract

Scalar and tensor polarizabilities of 5D 3/2 and 5D 5/2 levels of rubidium were measured in a cloud of cold atoms. The measurements were carried out by using the shift of spectral lines corresponding to 5P–5D transitions in a constant external electric field. The following values of polarizabilities were obtained: αS(5D 3/2) = 18 400 (75), αT(5D 3/2) = –750 (30), α(5D 5/2) = 18 600 (76), and αT(5D 5/2) = –1440 (60).

DOI: 10.1134/s0030400x15100252

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Optics and Spectroscopy

Measurement of polarizabilities of 5D levels of rubidium in a magnetic trap

Stepan Snigirev, Artem A. Golovizin, Sergey Pyatchenkov, Dmitry O. Tregubov, Alexey V. Akimov, N. Kolachevsky, В. Н. Сорокин

Published Oct 1, 2015• 1 citation

Publisher

Abstract

DOI: 10.1134/s0030400x15100252

Related papers

Measurement of the 5D -level polarizability in laser-cooled Rb atoms

Stepan Snigirev, Artem A. Golovizin, Dmitry O. Tregubov +5 more

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Yun Jhih Chen, Luís F. Gonçalves, Georg A. Raithel

We employ doubly resonant two-photon excitation into the $74S$ Rydberg state to spectroscopically measure the dynamic scalar polarizability, ${\ensuremath{\alpha}}_{0}$, and tensor polarizability, ${\ensuremath{\alpha}}_{2}$, of rubidium $5{P}_{3/2}$ . A cavity-generated 1064-nm optical lattice allows us to reach intensities near $2\ifmmode\times\else\texttimes\fi{}{10}^{11}\phantom{\rule{0.28em}{0ex}}\mathrm{W}/{\mathrm{m}}^{2}$, where the atom field is larger than the hyperfine interaction, and magnetic sublevels are well resolved. In the evaluation of the data we use a self-referencing method that renders the polarizability measurement largely free from the intensity calibration of the laser light field. We obtain experimental values ${\ensuremath{\alpha}}_{0}=\ensuremath{-}1149(\ifmmode\pm\else\textpm\fi{}2.5%)$ and ${\ensuremath{\alpha}}_{2}=563(\ifmmode\pm\else\textpm\fi{}4.2%)$, in atomic units. Methods and results are supported by simulations. The results provide an experimental test of atomic-structure calculations used to determine systematic shifts in atomic clocks and to interpret fundamental-physics experiments.We employ doubly resonant two-photon excitation into the $74S$ Rydberg state to spectroscopically measure the dynamic scalar polarizability, ${\ensuremath{\alpha}}_{0}$, and tensor polarizability, ${\ensuremath{\alpha}}_{2}$, of rubidium $5{P}_{3/2}$. A cavity-generated 1064-nm optical lattice allows us to reach intensities near $2\ifmmode\times\else\texttimes\fi{}{10}^{11}\phantom{\rule{0.28em}{0ex}}\mathrm{W}/{\mathrm{m}}^{2}$, where the atom field is larger than the hyperfine interaction, and magnetic sublevels are well resolved. In the evaluation of the data we use a self-referencing method that renders the polarizability measurement largely free from the intensity calibration of the laser light field. We obtain experimental values ${\ensuremath{\alpha}}_{0}=\ensuremath{-}1149(\ifmmode\pm\else\textpm\fi{}2.5%)$ and ${\ensuremath{\alpha}}_{2}=563(\ifmmode\pm\else\textpm\fi{}4.2%)$, in atomic units. Methods and results are supported by simulations. The results provide an experimental test of atomic-structure calculations used to determine systematic shifts in atomic clocks and to interpret fundamental-physics experiments.

arXiv:1507.05675Physical Review ADec 9, 201511 citations

We report on accurate measurements of the scalar ${\ensuremath{\alpha}}_{S}$ and tensor ${\ensuremath{\alpha}}_{T}$ polarizabilities of the

5D

fine structure levels

5{D}_{3/2}

and

5{D}_{5/2}

in Rb. The measured values (in atomic units) ${\ensuremath{\alpha}}_{S}({5D}_{3/2})=18\phantom{\rule{0.16em}{0ex}}400(75)$, ${\ensuremath{\alpha}}_{T}({5D}_{3/2})=\ensuremath{-}750(30)$, ${\ensuremath{\alpha}}_{S}({5D}_{5/2})=18\phantom{\rule{0.16em}{0ex}}600(76)$ and ${\ensuremath{\alpha}}_{T}({5D}_{5/2})=\ensuremath{-}1440(60)$ show reasonable correspondence to previously published theoretical predictions, but are more accurate. We implemented laser excitation of the

5D

level in a laser-cooled cloud of optically polarized Rb-87 atoms placed in a constant electric field.

We employ doubly resonant two-photon excitation into the

74S

Rydberg state to spectroscopically measure the dynamic scalar polarizability, ${\ensuremath{\alpha}}_{0}$, and tensor polarizability, ${\ensuremath{\alpha}}_{2}$, of rubidium

5{P}_{3/2}

. A cavity-generated 1064-nm optical lattice allows us to reach intensities near $2\ifmmode\times\else\texttimes\fi{}{10}^{11}\phantom{\rule{0.28em}{0ex}}\mathrm{W}/{\mathrm{m}}^{2}$, where the atom field is larger than the hyperfine interaction, and magnetic sublevels are well resolved. In the evaluation of the data we use a self-referencing method that renders the polarizability measurement largely free from the intensity calibration of the laser light field. We obtain experimental values ${\ensuremath{\alpha}}_{0}=\ensuremath{-}1149(\ifmmode\pm\else\textpm\fi{}2.5%)$ and ${\ensuremath{\alpha}}_{2}=563(\ifmmode\pm\else\textpm\fi{}4.2%)$, in atomic units. Methods and results are supported by simulations. The results provide an experimental test of atomic-structure calculations used to determine systematic shifts in atomic clocks and to interpret fundamental-physics experiments.