Electronic spectroscopy of ytterbium in a neon matrix

摘要: The low-lying electronic states of Yb isolated in a solid Ne matrix are characterized through absorption and emission spectroscopy. spectra while pumped into its triplet have been recorded for the first time 6s6p 3PJ → 5d6s 3D1, 2 transition frequencies obtained. Under conditions, structure these is found to be qualitatively same as free atom, but intersystem crossing rate observed several orders magnitude greater. A proposed explanation this curve crossings between bound potential energy surface correlated 1P1 state surfaces isolation. potentials Yb·Ne dimer lowest computed ab initio used pairwise cluster model explicitly demonstrate crossings.