Regensburg 2019 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 43: Anomalous diffusion / Brownian motion
DY 43.2: Talk
Thursday, April 4, 2019, 10:15–10:30, H3
Dynamics of ellipsoidal particles in random light fields — Rene Hermann1, Christoph Zunke1, •Florian Platten1, Arjun G. Yodh2, and Stefan U. Egelhaaf1 — 1Heinrich Heine University Duesseldorf — 2University of Pennsylvania, Philadelphia, USA
Ellipsoidal polystyrene particles are exposed to a random light field applying different laser power, and the particle motions are tracked by video microscopy. From the particle trajectories, mean-squared (angular) displacements are analyzed. Initial and long-time diffusion, as well as transient intermediate sub-diffusive behavior, are observed for the center-of-mass and angular displacements.