Journal article

Spectroscopy of barium atoms in liquid and solid helium matrices

  • Lebedev, Victor Département de Physique, Université de Fribourg, Switzerland
  • Moroshkin, Peter Département de Physique, Université de Fribourg, Switzerland
  • Weis, Antoine Département de Physique, Université de Fribourg, Switzerland
    03.08.2011
Published in:
  • Physical Review A - Atomic, Molecular and Optical Physics. - 2011, vol. 84, no. 2, p. 022502
English We present an exhaustive overview of optical absorption and laser-induced fluorescence lines of Ba atoms in liquid and solid helium matrices in visible and near-infrared spectral ranges. Due to the increased density of isolated atoms, we have found a large number of spectral lines that were not observed in condensed helium matrices before. We have also measured the lifetimes of metastable states. The lowest ³D₁ metastable state has lifetime of 2.6 s and can be used as an intermediate state in two-step excitations of high-lying states. Various matrix-induced radiationless population transfer channels have been identified.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/302157
Statistics

Document views: 8 File downloads:
  • wei_sba.pdf: 1