The use of polarized light scattering for the study of the dynamics of the spinodal decomposition

✍ Scribed by Horia Metiu; Gregory E. Korzeniewski

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 693 KB
• Volume: 53
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(78)80053-0

✦ Synopsis

Due to tie fact that in a system undergoing spinodal decomposition the long wavelength fluctuations are enhanced, we expect that multiple scattering evehts can be observed when the passage of light through the sample is measured. We study here the intensity of double scattering for both polarized and depolarized measurements, as a function of time and angle of detection. The time dependence is nonexponential and the dependence on the scattering wave vector is less pronounced than in the case of single scatterin g_ For systems with spherical molecuies it is possib!e to separate double and single scattering contriiutions if both polarized and depolarized measurements are made. This increases the amount and quality of information about the dynamics of the spinodal decomposition that can be obtained from light scattering experiments.