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  1. No Access

    Article

    Two-step excitation of Rb atoms on He nanodroplets

    We present the first sequential laser excitation of atom-doped helium nanodroplets. Rubidium atoms on the surface of helium nanodroplets are selectively excited with a continuous wave laser to the 52P1/2 state s...

    M. Theisen, F. Lackner, F. Ancilotto, C. Callegari… in The European Physical Journal D (2011)

  2. No Access

    Article

    Spectroscopy of alkali atoms (Li, Na, K) attached to large helium clusters

    Large liquid helium clusters (Hen, n ≈ 104) produced in a supersonic jet are doped with alkali atoms (Li, Na, K) and characterized by means of laser induced fluorescence. Each cluster contains, on average, less t...

    F. Stienkemeier, J. Higgins, C. Callegari… in Zeitschrift für Physik D Atoms, Molecules … (1996)