Direct observation of hydrodynamic rotation-translation coupling between two colloidal spheres
| Publikationstyp: | Zeitschriftenartikel |
| URI (zitierfähiger Link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-54226 |
| Autor/innen: | Martin, Stephen; Reichert, Michael; Stark, Holger; Gisler, Thomas |
| Erscheinungsjahr: | 2006 |
| Erschienen in: | Physical Review Letters ; 97 (2006). - 248301 |
| DOI (zitierfähiger Link): | https://dx.doi.org/10.1103/PhysRevLett.97.248301 |
| Zusammenfassung: |
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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| PACS-Klassifikation: | 47.57.J-; 47.15.G-; 45.20.dc; 05.40.Jc |
| Fachgebiet (DDC): | 530 Physik |
| Link zur Lizenz: | Deposit-Lizenz |
| Universitätsbibliographie: | Ja |
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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. 97, 248301
@article{Martin2006Direc-9224, title={Direct observation of hydrodynamic rotation-translation coupling between two colloidal spheres}, year={2006}, doi={10.1103/PhysRevLett.97.248301}, volume={97}, journal={Physical Review Letters}, author={Martin, Stephen and Reichert, Michael and Stark, Holger and Gisler, Thomas}, note={Article Number: 248301} }
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