Journal article

Spectroscopy of Rb₂ dimers in solid ⁴He

  • Moroshkin, Peter Department of Physics, University of Fribourg, Switzerland
  • Hofer, Adrian Department of Physics, University of Fribourg, Switzerland
  • Ulzega, Simone Department of Physics, University of Fribourg, Switzerland
  • Weis, Antoine Department of Physics, University of Fribourg, Switzerland
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    07.09.2006
Published in:
  • Physical Review A. - 2006, vol. 74, p. 032504
English We present experimental and theoretical studies of the absorption, emission, and photodissociation spectra of Rb₂ molecules in solid helium. We have identified 11 absorption bands of Rb₂. All laser-excited molecular states are quenched by the interaction with the He matrix. The quenching results in efficient population of a metastable (1) ³πu state, which emits fluorescence at 1042 nm. In order to explain the fluorescence at the forbidden transition and its time dependence we propose a new molecular exciplex Rb₂(³πu)He₂. We have also found evidence for the formation of diatomic bubble states following photodissociation of Rb₂.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/300129
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