Publikation: Direct observation of hydrodynamic rotation-translation coupling between two colloidal spheres
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2006
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Physical Review Letters. 2006, 97, 248301. Available under: doi: 10.1103/PhysRevLett.97.248301
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By combining optical tweezers with polarization microscopy, the hydrodynamic coupling between position and orientation fluctuations in a pair of colloidal spheres has been measured. Imaging of birefringent particles under crossed polarizers allows for the simultaneous determination of the positions and orientations of both particles. The temporal cross-correlation function between random displacements of one particle and orientation fluctuations of its neighbor allows for the quantification of the hydrodynamic rotation-translation coupling between the spheres. Our results are in good agreement with predictions for the hydrodynamic mobility tensors calculated in the creeping-flow limit of the Navier-Stokes equation.
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MARTIN, Stephen, Michael REICHERT, Holger STARK, Thomas GISLER, 2006. Direct observation of hydrodynamic rotation-translation coupling between two colloidal spheres. In: Physical Review Letters. 2006, 97, 248301. Available under: doi: 10.1103/PhysRevLett.97.248301BibTex
@article{Martin2006Direc-9224,
year={2006},
doi={10.1103/PhysRevLett.97.248301},
title={Direct observation of hydrodynamic rotation-translation coupling between two colloidal spheres},
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journal={Physical Review Letters},
author={Martin, Stephen and Reichert, Michael and Stark, Holger and Gisler, Thomas},
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