ISSN:
1434-6079
Keywords:
PACS. 32.70.-n Intensities and shapes of atomic spectral lines[:AND:] 31.50.+w Excited states - 34.20.-b Interatomic and intermolecular potentials and forces, potential energy surfaces for collisions
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: Results of broadening and shift measurements of Doppler-free two-photon lines for transitions from the ground state to the Rydberg states with intermediate principle quantum numbers of atomic thallium perturbed by rare gases are reported. The rates show a distinct behaviour in this range of principle quantum numbers and significant dependence on the total angular momentum of the upper nP state. The experimental results are compared with calculations using a Van der Waals potential and a superposition of polarization and Fermi potentials. Additionally, broadening and shift rates of the transition Tl 6P 3/2 -9P 3/2 have been measured for quadrupolar as well as for mainly scalar excitation. The rates for both kinds of excitation coincide within the limits of error reflecting the small perturbation of the 6P 3/2 state compared to that of the upper 9P 3/2 state.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100530050073
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