New REMPI observations and analyses for Rydberg and ion-pair states of HI

Helgi Rafn Hróðmarsson, Huasheng Wang, Ágúst Kvaran*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Two-dimensional REMPI data, obtained by recording ion mass spectra for HI as a function of two-photon wavenumber were recorded and analyzed. Several previously observed spectra due to resonance transitions to Ω = 0 states were (re)assigned. The spectral data revealed several previously unobserved (2 + n) REMPI spectra. These were assigned and analyzed to derive band origins and rotational parameters of Rydberg and ion-pair states. Perturbation effects, showing as line-shifts and/or signal intensity alterations, were found to be helpful in spectra assignments.

Original languageEnglish
Pages (from-to)5-12
Number of pages8
JournalJournal of Molecular Spectroscopy
Publication statusPublished - 2013

Bibliographical note

Funding Information:
The financial support of the University Research Fund, University of Iceland and the Icelandic Science Foundation (Project No. 130259-051) is gratefully acknowledged.

Other keywords

  • Ion-pair states
  • Photofragmentation
  • Photoionization
  • Rydberg states
  • State interactions


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