U.S.-Germany Cooperative Research: Light Scattering from Colloids

该奖项支持宾夕法尼亚大学的David Weitz博士和一位博士后与美因茨约翰内斯古腾堡大学物理系的Thomas Palberg合作。美因茨小组开发了一种双色互相关技术，可以抑制多重散射的干扰。宾夕法尼亚大学的研究小组开发了漫射波光谱学（DWS），专门利用多重散射。这两种方法是互补的，一种方法提供大范围散射角的平均信息，另一种方法提供更详细的、与角度相关的信息。在这项工作中，两个小组的专业知识将结合起来研究特定胶体悬浮液的相同样品，并在完整的浓度范围内扩展重要知识。

This award supports Dr. David Weitz and a post doc from the University of Pennsylvania in a collaboration with Thomas Palberg of the Department of Physics at the Johannes Gutenberg University, Mainz. The Mainz group has developed a two-color cross- correlation technique that suppresses the interference of multiple scattering. The Pennsylvania group has developed diffusing-wave spectroscopy (DWS), which specifically exploits multiple scattering. The two methods are complementary, one providing average information for a large range of scattering angle, the other providing more detailed, angle- dependent information. In this work, the expertise of the two groups will be combined to study identical samples of particular colloidal suspensions and to extend important knowledge over a complete range of concentrations.