Perturbations in the b 4g- state of O2 + immediately below the predissociation limit, studied by high-resolution optical-optical double-resonance photofragment spectroscopy

N. Bjerre*, Torkild Andersen, M. Kaivola, O. Poulsen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Optical-optical double-resonance photofragment spectroscopy of molecular ions is, for the first time, performed with a Doppler-limited resolution of 0.003 cm-1. The high resolution allows the observation of perturbations in the b 4g- state arising from a vibrationally excited level in the d 4g+ state lying only 29 cm-1 below the predissociation limit. The matrix element for the interaction between the b and d states is obtained from a perturbation analysis and is used to estimate the contribution of the d state to the predissociation of the b state. Precise effective Hamiltonians are reported for the a 4 u(v=4,5) and b 4g-(v=4) states.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalPhysical Review A
Volume31
Issue number1
DOIs
Publication statusPublished - 1 Jan 1985
MoE publication typeA1 Journal article-refereed

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