Alignment-orientation conversion by quadratic Zeeman effect: Analysis and observation for Te2

Klincare, I. P.; Tamanis, M. Ya.; Stolyarov, A. V.; Auzinsh, M. P.; Ferber, R. S.
October 1993
Journal of Chemical Physics;10/15/1993, Vol. 99 Issue 8, p5748
Academic Journal
This paper reports the observation of the molecular fluorescence circularity under irradiation with linear polarized light. The phenomenon arises as a result of partial transformation from alignment of the ensemble of molecular angular momenta into orientation due to quadratic correction to Zeeman effect. Circularity rate up to 0.05 at magnetic field 0.4 T was registered in B 3Σu-(1u-)→X 3Σg-(1g-) fluorescence of 130Te2 molecules at angle π/4 with respect to Ê vector of linear polarized exciting light. Quadratic magnetic energy terms are associated with magnetic field induced ΔJ=±1 e/f mixing between 1u-∼1u+ and 1u-∼0u+ states. Circularity data fitting shows that the electronic part of Landé factor caused by 1u-∼0u+ interaction is equal to G± [bar_over_tilde:_approx._equal_to]gl<0u|Ja±|1u>+(gs-gl) <0u|S±|1u>[bar_over_tilde:_approx._equal_to]2.72.


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