Two-photon spectroscopy of HI in the 69 600–73 600 cm-1 region.

Several new electronic states in HI have been identified from resonance-enhanced multiphoton ionization (REMPI) spectra in the 69 600–73 600 cm-1 region. These results have been combined with previously unpublished single-photon absorption data and, in selected wavelength regions, with REMPI spectra of DI to provide a more complete description of the excited electronic structure of HI up to ∼9.2 eV above the ground state. © 1995 American Institute of Physics. [ABSTRACT FROM AUTHOR]