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Molecular polarization and laser photopredissociation in the presence of a magnetic field

Authors
Journal
Chemical Physics
0301-0104
Publisher
Elsevier
Publication Date
Volume
63
Issue
3
Identifiers
DOI: 10.1016/0301-0104(81)87019-x

Abstract

Abstract The theory of the angular distribution of the photofragment resulting from weak predissociation in a diatomic molecule is worked out in the density matrix formalism. Special attention is given to the relationship between photofragment anisotropy, molecular polarization and fluorescence light polarization. The effect of a steady applied magnetic field is discussed and compared with classical Hanle effect. Application to the case of O 2 +, b 4σ R − state studied by fast ion beam laser spectroscopy (FIBLAS) is presented. Zeeman effect of the low J levels is observed in good agreement with theory and the angular distribution of the photofragments arising from a few selected Zeeman sublevels offers qualitative experimental confirmation of the theoretically predicted behavior.

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