An example quadratic Zeeman effect

An interesting possibility of meeting the conditions (5.42) and thus observing alignment-orientation conversion appears when the quadratic contribution to the Zeeman energy (4.53) is taken into account. In particular, the term connected with the non-spherical part of the diamagnetic suscep- 

Here v, vo pertain to the vibrational levels of the lu, 0 states, respectively. It can easily be seen from (5.49), (5.50) and (5.51) that the condition of asymmetric splitting of M-levels (5.42) is satisfied, since 

Substitution of u mm into (5.45) and (5.46) permits the calculation of the expected value of the circularity rate C emerging at linearly polarized excitation. The results of such a calculation are presented in Fig. 5.6. The parameters employed in the calculation are for the v = 2, J = 96 level of a 130Te2 molecule in the B3 (1 ) state. Fig. 5.6(6) refers to the same geometry as in Fig. 5.4, which corresponds to ip = 0 in Fig. 5.3, with the difference that here it is not the electric, but the external magnetic, field B which is directed along the z-axis. Curve 1 corresponds to the assumption that B(M, J) = 0 in (5.49), or that bj = 0 in (5.52). The curve 2 refers to the total Zeeman effect after (5.49). It is assumed in the calculations that Gz = 1.86, G = 2.9 [235]. As can be seen, the magnetic field-induced 

In this section we intend to show, by means of concrete examples, the technique of solving the system of Eqs. (5.22) and (5.23) by expanding the polarization moments fq, tp into a power series of the parameters rp/7/t Tp/rjc, u s/7/t and ojs/ k- 

In zero-order approximation, pumping light being absent, the answer is obvious  

---