Figure 2
Energy states and transition diagram applicable to (a) the even mass isotope, in which the JM basis is suitable with a lack of nuclear spin (I = 0), and (b) changing optical alignment of polarized light causes its selection rules. (c) The 1st and 2nd intermediate states described by FMF basis with non-zero nuclear spin (I = 5/2) for the odd mass isotope, showing that cross-linked transitions occur. The red arrows and ω indicate linearly polarized light and the transition energy, respectively.
