Photolysis production and spectroscopic investigation of the highest vibrational states in H$_2$ (X$^1Σ_g^+$ $v=13,14$)

K. -F. Lai; M. Beyer; E. J. Salumbides; W. Ubachs

doi:10.1021/acs.jpca.0c11136

paper

Photolysis production and spectroscopic investigation of the highest vibrational states in H $_{2}$ (X $^{1} Σ_{g}^{+}$ $v = 13, 14$ )

arXiv:2101.06083 · doi:10.1021/acs.jpca.0c11136

Abstract

Rovibrational quantum states in the $X^{1} Σ_{g}^{+}$ electronic ground state of H $_{2}$ are prepared in the $v = 13$ vibrational level up to its highest bound rotational level $J = 7$ , and in the highest bound vibrational level $v = 14$ (for $J = 1$ ) by two-photon photolysis of H $_{2}$ S. These states are laser-excited in a subsequent two-photon scheme into $F^{1} Σ_{g}^{+}$ outer well states, where the assignment of the highest ( $v, J$ ) states is derived from a comparison of experimentally known levels in \F, combined with \emph{ab initio} calculations of \X\ levels. The assignments are further verified by excitation of $F^{1} Σ_{g}^{+}$ population into autoionizing continuum resonances which are compared with multi-channel quantum defect calculations. Precision spectroscopic measurements of the $F - X$ intervals form a test for the \emph{ab initio} calculations of ground state levels at high vibrational quantum numbers and large internuclear separations, for which agreement is found.

Photolysis production and spectroscopic investigation of the highest vibrational states in H $_{2}$ (X $^{1} Σ_{g}^{+}$ $v = 13, 14$ )

Abstract

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Photolysis production and spectroscopic investigation of the highest vibrational states in H2​ (X1Σg+​ v=13,14)

Abstract

References in corpus (3)

Cited by in corpus (6)

Photolysis production and spectroscopic investigation of the highest vibrational states in H $_{2}$ (X $^{1} Σ_{g}^{+}$ $v = 13, 14$ )