Aarhus University Seal / Aarhus Universitets segl

Marcel Mudrich

Spectroscopy of Cs attached to helium nanodroplets

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

DOI

  • O. Bünermann, Universität Bielefeld
  • ,
  • M. Mudrich
  • M. Weidemüller, Albert-Ludwigs-Universität Freiburg
  • ,
  • F. Stienkemeier, Universität Bielefeld

Cesium oligomers are formed on helium nanodroplets which are doped with one or a few Cs atoms. The monomer absorption of the first electronic p←s transition upon laser excitation is probed. Spectra employing laser-induced fluorescence, beam depletion, and resonant photoionization are compared. In particular, mass-resolved photoionization allows us to specifically probe excitation induced processes such as, e.g., the formation of cesium-helium exciplexes. Absorption spectra of Cs dimers and trimers are recorded in the spectral region accessible by a Ti: sapphire laser. Assignment of dimer spectra is achieved by comparison with model calculations based on ab initio potentials. Electronic absorption lines of Cs trimers are attributed to transitions in the quartet manifold.

OriginalsprogEngelsk
TidsskriftJournal of Chemical Physics
Vol/bind121
Nummer18
Sider (fra-til)8880-8886
Antal sider7
ISSN0021-9606
DOI
StatusUdgivet - 8 nov. 2004
Eksternt udgivetJa

Se relationer på Aarhus Universitet Citationsformater

ID: 112760321