Light-driven oscillations of entangled nematic colloidal chains
- 267 Downloads
Laser tweezers have been used to drive the oscillations of a chain of entangled colloidal particles in the nematic liquid crystal 5CB. The amplitude and phase of light-driven oscillations have been determined for the motion of individual colloidal particles. The collective motion of 4.8μm silica particles is highly damped for a driving frequency above 0.5Hz. The results were compared to an effective bead-spring model, where the motion of elastically coupled particles is hindered by viscous damping and hydrodynamic coupling. Qualitative agreement between theory and experiment was obtained.
KeywordsLiquid Crystal Colloidal Particle Nematic Liquid Crystal Optical Trap Elastic Distortion
- 27.M.R. Wilson, L.M. Stimson, J.M. Ilnytskyi, Z.E. Hughes, in Computer Simulations of Liquid Crystals and Polymers, edited by P. Pasini, C. Zannoni, S. Žumer (Kluwer Academic Publishers, the Netherlands, 2005)Google Scholar
Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.