ALIGNMENT-ORIENTATION CONVERSION BY QUADRATIC ZEEMAN-EFFECT - ANALYSIS AND OBSERVATION FOR TE2

This paper reports the observation of the molecular fluorescence circu larity under irradiation with linear polarized light. The phenomenon a rises as a result of partial transformation from alignment of the ense mble of molecular angular momenta into orientation due to quadratic co rrection to Zeeman effect. Circularity mte up to 0.05 at magnetic fiel d 0.4 T was registered in B3SIGMA(u)-(1u-)-->X3SIGMA(g)-(1g-) fluoresc ence of Te-130(2) molecules at angle pi/4 with respect to E vector Of linear polarized exciting light. Quadratic magnetic energy terms are a ssociated with magnetic field induced DELTAJ = +/-1 e/f mixing between 1u- approximately 1u+ and 1u- approximately 0u+ states. Circularity d ata fitting shows that the electronic part of Lande factor caused by 1 u- approximately 0u+ interaction is equal to G+/-is-approximately-equa l-to g(l)[0u\J(a+/-)\1u]+(g(s)-g(l))[0u\S+/-\1u] is-approximately-equa l-to 2.72.