Polarization of fluorescence following molecular photoionization

E. D. Poliakoff, J. L. Dehmer, Dan Dill, A. C. Parr, K. H. Jackson, R. N. Zare

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


With use of the B2 u+ state of N2+ as an example, this Letter presents the first measurements demonstrating that fluorescence from molecular ions formed by photoionization is partially polarized. Furthermore, it is shown that the degree of polarization reflects the alignment of the molecular ion and the ratio of the dipole strengths for the degenerate channels producing the ionic state. The wavelength-dependent measurements are compared with both quantum mechanical and classical calculations. Temperature-dependent effects are predicted.

Original languageEnglish
Pages (from-to)907-910
Number of pages4
JournalPhysical Review Letters
Issue number14
StatePublished - 1981
Externally publishedYes


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