The author proposes an approach which is capable of analysing quantitatively the highly excited Rydberg states of quasi-hydrogenic atoms. The effectiveness of this approach is demonstrated by an application to the fine structure of the 2 D states of rubidium.

Journal of Physics B Atomic and Molecular PhysicsOct 14, 197813 citations

Journal of the Optical Society of America A

Fine structure in the rubidium Rydberg series (A)

Kenneth C. Harvey, Boris Peter Stoicheff

Published Oct 1, 1977• 0 citations

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The diode-pumped alkali laser (DPAL) is a new type of high-powered laser sources which has been paid much attention in recent years. The fluorescent spectra can be used to investigate how the collisions between atomic rubidium and various buffer gases are affected when a sealed rubidium vapor cell is pumped by a LD. In this study, the cross sections between the fine-structure levels of atomic rubidium in a vapor cell were first theoretically deduced by using a gas kinetic procedure. And then, the sensitized fluorescence was experimentally obtained by means of a series of spectral measurements. Finally, the influence of the temperature on the cross section between the fine -structure levels of atomic rubidium was studied with the systematical analyses. The results are thought to be helpful for deeply understanding the theoretical characteristics of a DPAL at the atomic physics level.The diode-pumped alkali laser (DPAL) is a new type of high-powered laser sources which has been paid much attention in recent years. The fluorescent spectra can be used to investigate how the collisions between atomic rubidium and various buffer gases are affected when a sealed rubidium vapor cell is pumped by a LD. In this study, the cross sections between the fine-structure levels of atomic rubidium in a vapor cell were first theoretically deduced by using a gas kinetic procedure. And then, the sensitized fluorescence was experimentally obtained by means of a series of spectral measurements. Finally, the influence of the temperature on the cross section between the fine -structure levels of atomic rubidium was studied with the systematical analyses. The results are thought to be helpful for deeply understanding the theoretical characteristics of a DPAL at the atomic physics level.

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T. N. Chang

Journal of Physics B Atomic and Molecular PhysicsOct 14, 197813 citations

Two-photon, Doppler-free spectroscopy with counter-propagating beams from a cw dye laser and a new type of thermionic detector have been used to study the

^{2}D_{\frac{3}{2}}

and

^{2}D_{\frac{5}{2}}

levels of Rb for Rydberg states up to

n=85

, only 16 ${\mathrm{cm}}^{\ensuremath{-}1}$ from the ionization limit. It is shown that the fine-structure spacing varies as ${{n}_{\mathrm{eff}}}^{\ensuremath{-}3}$ for $n>\ensuremath{\sim}25$, and as a linear combination of ${{n}_{\mathrm{eff}}}^{\ensuremath{-}5}$ and ${{n}_{\mathrm{eff}}}^{\ensuremath{-}3}$ for $n<\ensuremath{\sim}25$.