Stark effect investigations of resonance lines of neutral potassium, rubidium, europium and gallium

Abstract

Laserspectroscopic investigations of the Stark splitting and shift behaviour of the hyerfine components of resonance lines of potassium, rubidium, europium and gallium have been performed in external electric fields up to field strengths of 400 kV/cm. For the transitions 39 K(4 2 S 1/2 − 4 2 P 1/2 ; D 1 -line); λ = 769.896 nm, 39 K(4 2 S 1/2 − 4 2 P 3/2 ; D 2 -line); λ = 766.490 nm, 85,87 Rb(5 2 S 1/2 − 5 2 P 1/2 ; D 1 -line); λ = 780.023 nm, 151,153 Eu(a 8 S 7/2 − z 6 P • 7/2 ); λ = 576.520 nm, 69,71 Ga(4s 2 4p 2 P 3/2 − 4s 2 5s 2 S 1/2 ); λ = 417.204 nm, we derived the scalar polarizability difference ∆α 0 between upper and lower level of the transitions and the individual tensor polarizabilities α 2 .

Absolute and ratio measurements of the polarizability of Na, K, and Rb with an atom interferometer

“…These measurements provide benchmark tests of atomic theory calculations. Our ground-state polarizability measurements may be combined with transition Starkshift measurements [34][35][36][37] to yield improved knowledge of excited-state polarizabilities and additional dipole matrix elements [33,38].…”

ac electric trapping of neutral atoms

“…In the 5 2 P 3/2 (F = 3) excited state, however, the degeneracy is lifted due to the tensor polarizability [21], as seen in the inset of Fig. 3.…”

Measurement of the5D-level polarizability in laser-cooled Rb atoms

“…Polarizabilities for the 5P level are taken from [25], their uncertainties negligibly contribute to our error budget.…”