title: Measuring rotational diffusion of colloidal spheres with confocal microscopy.
abstract: We report an experimental method to measure the translational and rotational dynamics of colloidal spheres in three dimensions with confocal microscopy and show that the experimental values reasonably agree with the theoretical values. This method can be extended to study rotational dynamics in concentrated colloidal systems and complex bio-systems.
authors.affiliation: Fraunhofer Institut für angewandte Polymerforschung (IAP), Geiselbergstr. 69, 14476 Potsdam, Germany. liubing@iccas.ac.cn and DWI - Leibniz Institute for Interactive Materials e.V., Lehrstuhl für Makromolekulare Materialien und Oberflächen, RWTH Aachen University, Forckenbeckstr. 50, D-52056 Aachen, Germany and State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China.
authors.forename: Bing
authors.initials: B
authors.lastname: Liu
authors.affiliation: Fraunhofer Institut für angewandte Polymerforschung (IAP), Geiselbergstr. 69, 14476 Potsdam, Germany. liubing@iccas.ac.cn and DWI - Leibniz Institute for Interactive Materials e.V., Lehrstuhl für Makromolekulare Materialien und Oberflächen, RWTH Aachen University, Forckenbeckstr. 50, D-52056 Aachen, Germany and Lehrstuhl für Polymermaterialien und Polymertechnologien, Universität Potsdam, Geiselbergstrasse 69, 14476 Potsdam, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Böker