Abstract

We report investigation of two highly excited electronic states of Rb2 molecule, 71Πu and 71Σ+u, by polarization labelling spectroscopy in the energy region 27,700–30,000 cm−1above the minimum of the ground state potential well. These are the highest electronic states of rubidium dimer studied under rotational resolution thus far. The molecular parameters derived for both excited states and the experimentally determined potential energy curves are compared with predictions of the recent theoretical calculations, showing a very good agreement.

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