Physica Scripta

Stark Effect Investigation of D States in85Rb and133Cs Using Level Crossing Spectroscopy with a CW Dye Laser

W. Hogervorst, Sune R. Svanberg

Published Jul 1, 1975• 49 citations

Abstract

Stark effect investigations in the 6, 7 and 82D3/2,5/2levels of85Rb and the 8, 9 and 102D3/2,5/2levels of133Cs were performed with the level crossing technique. The levels were populated in a two-step excitation process, involving a CW tunable dye laser. The tensor polarizability of all states was measured and a good agreement with theoretical values, obtained with the Coulomb approximation, is found. Furthermore, the signs of the dipole interaction constants, determined to absolute value in earlier experiments, could be inferred. The sign was found to be positive for the2D3/2states and negative for the2D5/2states, indicating strong polarization effects in the magnetic hyperfine interaction.

DOI: 10.1088/0031-8949/12/1-2/007

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Physica Scripta

Stark Effect Investigation of D States in85Rb and133Cs Using Level Crossing Spectroscopy with a CW Dye Laser

W. Hogervorst, Sune R. Svanberg

Published Jul 1, 1975• 49 citations

Publisher

Abstract

DOI: 10.1088/0031-8949/12/1-2/007

Related papers

Hyperfine Interaction, Zeeman and Stark Effects for Excited States in Rubidium

G Belin, Lennarth Holmgren, Sune R. Svanberg

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Level-crossing spectroscopy of the 7, 9, and 10D states of Cs in an external electric field

Marcis P. Auzinsh, Kaspars Blushs, R. Ferber +3 more

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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEMar 2, 20070 citations

Hyperfine-Structure Studies of Highly Excited D and F Levels in Alkali Atoms Using a cw Tunable Dye Laser

Sune R. Svanberg, Pericles G. Tsekeris, W. Happer

Highly excited $S$ , $D$ , and $F$ levels in cesium and rubidium have been populated utilizing a two-step optical excitation method. In the first step an rf lamp is used to transfer atoms into the first $P$ states, and the subsequent excitation is performed with the tunable radiation of a cw dye laser. We give results for the hyperfine structure of several $D$ and $F$ states in ${\mathrm{Cs}}^{133}$ and ${\mathrm{Rb}}^{87}$ , obtained in level-crossing and optical double resonance experiments.Highly excited $S$, $D$, and $F$ levels in cesium and rubidium have been populated utilizing a two-step optical excitation method. In the first step an rf lamp is used to transfer atoms into the first $P$ states, and the subsequent excitation is performed with the tunable radiation of a cw dye laser. We give results for the hyperfine structure of several $D$ and $F$ states in ${\mathrm{Cs}}^{133}$ and ${\mathrm{Rb}}^{87}$, obtained in level-crossing and optical double resonance experiments.

Physical Review LettersApr 30, 197389 citations

The hyperfine structure of several highly excited

^{2}D

states in

^{87}\mathrm{Rb}

and

^{133}\mathrm{Cs}

has been measured. The

D

-state atoms were produced in a two-step-excitation process. In the first step, multiple scattering of the strong alkali-metal

{D}_{1}

and

{D}_{2}

lines from an rf lamp was used to excite atoms into the first excited

^{2}P

levels. The intense tunable radiation from a cw dye laser was used in the second step to transfer

P

-state atoms into highly excited

D

states. Level-crossing and optical-double-resonance techniques were used for the determination of the absolute values of the hyperfine-interaction constants. The following results (in MHz) were obtained for the magnetic dipole and the electric quadrupole interaction constants

a

and

b

: For

^{87}\mathrm{Rb}

|a(6^{2}D_{\frac{3}{2}})|=7.84(5)

|b(6^{2}D_{\frac{3}{2}})|=0.53(6)

(

\frac{b}{a}>0

|a(^{2}D_{\frac{5}{2}})|=3.6(7)

|a(7^{2}D_{\frac{3}{2}})|=4.53(3)

|b(7^{2}D_{\frac{3}{2}})|=0.26(4)

(

\frac{b}{a}>0

|a(7^{2}D_{\frac{5}{2}})|=2.2(5)

. For

^{133}\mathrm{Cs}

|a(8^{2}D_{\frac{3}{2}})|=3.98(8)

|a(8^{2}D_{\frac{5}{2}})|=0.9(4)

|a(9^{2}D_{\frac{3}{2}})|=2.37(3)

|a(9^{2}D_{\frac{5}{2}})|=0.5(2)

|a(10^{2}D_{\frac{3}{2}})|=1.52(3)

|a(10^{2}D_{\frac{5}{2}})|=0.4(2)

. The

a

factors generally deviate strongly from the values expected in a one-electron picture of the alkali-metal atom indicating the importance of polarization and correlation effects for these states. For

^{87}\mathrm{Rb}

a comparison with a recent calculation including polarization effects is made. The

b

factors for

^{87}\mathrm{Rb}

are the first significant values allowing a calculation of an alkali-metal-atom nuclear quadrupole moment from non-

P

-state data.

Highly excited

S

D

, and

F

levels in cesium and rubidium have been populated utilizing a two-step optical excitation method. In the first step an rf lamp is used to transfer atoms into the first

P

states, and the subsequent excitation is performed with the tunable radiation of a cw dye laser. We give results for the hyperfine structure of several

D

and

F

states in

{\mathrm{Cs}}^{133}

and

{\mathrm{Rb}}^{87}

, obtained in level-crossing and optical double resonance experiments.