Polarization characteristics of a compound ruby laser

Dependence of band intensity in pre‐resonance Raman scattering from molecules

“…(3) and (4) is caused by the following: using a more rigorous approach to solve the problem, the interaction of light and substance was considered in terms of the vector-potential of the field and particle momentum, and in the semi-classical approximation in terms of electric intensity of light waves and dipole moment induced in a molecule. 12 However, the series describing the RS tensor and containing a summation with respect to intermediate states are characterized in both cases by the same sums, i.e. the record of the general term is different.…”

“…1,2 These investigations showed that particularly fast growth of the RS line intensity occurs in those normal modes of a molecule which are largely deforming its electron shell. Thus, in benzene the vibration at 992 cm 1 causes significant deformation of the -electron shell of the molecule, which probably determines the abnormal intensity increase by a factor of 10.3 on passing from the exciting line of mercury at 435.8 nm to the line at 313.1 nm, while the intensity of the peripheral stretching vibrations of benzene at 3062 cm 1 increases only 4.1 fold.…”