Inelastic Rayleigh ratio

There have been a number of studies of the breakup of viscoelastic filaments because of interfacial tension, all of which show that the viscoelastic response results in dynamics that differ markedly from the Rayleigh breakup of inelastic filaments, but the focus for interfacial tension-driven breakup has been on dilute polymer solutions of interest in aerial spraying and inkjet technology applications. The hterature is less extensive for breakup of polymer melts, and some of the issues relevant to dilute solutions are probably not of concern for melts because of the orders-of-magnitude difference in the ratio of interfacial to viscous (or elastic) stresses. 

RS process is intrinsically weak. Since only a very small fraction of light is inelastically scattered, the intensity ratio of Rayleigh line and Raman lines is approximately 10 -10. The efficiency of particular molecule (with a random orientation with respect to the incident field polarization) to scatter light by RS can be determined by a differential Raman cross-section ... 

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