Rydberg states and spin-orbit coupling of the thallium atom

Lin, King‐Chuen; Lee, Hsi-Chieh; Arepalli, Sivaram

doi:10.1103/physreva.46.7150

Cited by 7 publications

(5 citation statements)

References 19 publications

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“…Analyses of lead ions relevant to this work are due to Wood and Andrew [45] (Pb I) and to Ross et al [46] and Wood et al [47] (PbII). The ground state separation of T1I is taken from Moore [35], the most recent analysis by Lin et al [48] concerning only higher Rydberg (n > 6) states. As a consequence of the scarcity of experimental levels, the fitting procedure was possible only for a few ions quoted in Table 11.…”

Section: Calculationsmentioning

confidence: 99%

Forbidden lines in 6p^k(k= 1–5) configurations

Biémont

Quinet

1996

Phys. Scr.

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Energy levels and radiative transition probabilities have been calculated for states within the 6p' (k = 1-5) configurations in the thallium, lead, bismuth, polonium and actinium sequences up to radon. Magnetic dipole (Ml) and electric quadrupole (E2) transition probabilities have been obtained using average energies, electrostatic and spin-orbit integrals adjusted so as to fit the observed energy levels or, in the absence of experimental data, in an ab initio way. The most important configuration interaction and relativistic effects were included in the calculations, using the relativistic Hartree-Fock method. The validity of the method is assessed through limited comparisons with multiconfiguration relativistic random-phase and multicodguration Dirac-Fock results available or calculated along the lead sequence. For many of the forbidden lines considered in the present work, transition probabilities are reported for the first time.

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Section: Calculationsmentioning

confidence: 99%

Forbidden lines in 6p^k(k= 1–5) configurations

Biémont

Quinet

1996

Phys. Scr.

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“…For identification of the dips the transition energies were taken from [ 14]. For identification of the dips the transition energies were taken from [ 14].…”

Section: Observationsmentioning

confidence: 99%

“…Rydberg series are taken from [14] into TI* and I. Thus the analysis of the spectra will concentrate on the resonance TI*~ 10p 2p1/2 in this letter.…”

Section: Observationsmentioning

confidence: 99%

“…[14]. We also calculated the HW for a saturated two-photon transition applying atomic f-values from [17,18] and atomic energy differences from [11,14], values smaller than 1 cm-~ were obtained. This is consistent with experiments on an atomic T1 beam by Wang et al [16].…”

Section: Observationsmentioning

confidence: 99%

“…This is in the order of the Bohr radius of the T1 10p Rydberg atom with an effective principal quantum number n*=5.75 [14]: Rlop = 18 A. With such difference potentials it was not possible to describe the intensity dependence of all profiles with a single C, for all observations.…”

Section: Rcmentioning

confidence: 99%

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Two-photon absorption of dissociating TLI in strong laser fields

Bovensmann

Tiemann

1994

Z Phys D - Atoms, Molecules and Clusters

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In a strong laser field (I = 2 GW/cm 2) TII is dissociated by a two-photon process and the T1 fragment is detected state specifically. The yield of T1 6p 2P3/2 (TI*) is measured as a function of the dissociation wavelength (480 nm-540 nm). If the dissociation wavelength is close to two-photon transitions of the T1 atom from 6p 2P3/2 to np 2p1/2,3/2 or mf 2F5/2,7/2, l,~= 10 ... 15, m=7 ... 12 dips in the yield are observed. These dips show a significant asymmetric broadening, compared to a free atomic transition and the observation is interpreted as an absorption process of the transient state of dissociating TII during the laser pulse. By applying the Landau-Zener approximation for the potential crossing of dressed molecular states, we are able to describe the broadening and the power density dependence of the observations. Simulations show that the asymmetry is determined by the difference potential of the electronic states which are coupled by the laser field.

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