HYDRODYNAMICS OF COLLOIDAL CRYSTALS

被引：38
作者：
DERKSEN, J
VANDEWATER, W
机构：
[1] Physics Department, Eindhoven University of Technology, 5600 MB Eindhoven
来源：
PHYSICAL REVIEW A | 1992年 / 45卷 / 08期
关键词：
D O I：
10.1103/PhysRevA.45.5660
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the hydrodynamics of colloidal crystals in a thin-film cell using dynamic-light-scattering techniques. The measured time dependence of the fluctuating scattered light intensity reflects the characteristic frequencies of crystal modes. At variance with the theory of hydrodynamic interactions in colloidal crystals, photon-correlation functions of light scattered by longitudinal modes are nonexponential. In the long-wavelength limit, transverse modes acquire a finite damping due to the finite sample thickness. We systematically investigate this effect as a function of cell separation.
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页码：5660 / 5673
页数：14
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