Mode coupling in a hanging-fiber AFM used as a rheological probe

Clemence Devailly 1 Justine Laurent 1 Audrey Steinberger 1 Ludovic Bellon 1 Sergio Ciliberto 1
1 Phys-ENS - Laboratoire de Physique de l'ENS Lyon
Abstract : We analyze the advantages and drawbacks of a method which measures the viscosity of liquids at microscales, using a thin glass fiber fixed on the tip of a cantilever of an ultra-low-noise Atomic Force Microscope (AFM). When the fiber is dipped into a liquid, the dissipation of the cantilever-fiber system, which is linked to the liquid viscosity, can be computed from the power spectral density of the thermal fluctuations of the cantilever deflection. The high sensitivity of the AFM allows us to show the existence and to develop a model of the coupling between the dynamics of the fiber and that of the cantilever. This model, which accurately fits the experimental data, gives also more insights into the dynamics of coupled microdevices in a viscous environment. Copyright (C) EPLA, 2014
Keywords : Thermal fluctuations AFM Micro rheology interferometric techniques.
Document type :
Journal articles
Complete list of metadatas

Cited literature [10 references]  Display  Hide  Download
https://hal-ens-lyon.archives-ouvertes.fr/ensl-00881777
Contributor : Sergio Ciliberto <>
Submitted on : Friday, November 8, 2013 - 10:58:11 PM
Last modification on : Wednesday, November 20, 2019 - 3:14:43 AM
Long-term archiving on: Monday, February 10, 2014 - 11:56:54 AM

Files

FishingRod.pdf
Files produced by the author(s)

Licence

Copyright

Identifiers

  • HAL Id : ensl-00881777, version 1
  • ARXIV : 1311.2217

Collections

CNRS | ENS-LYON | UNIV-LYON1 | UDL

Citation

Clemence Devailly, Justine Laurent, Audrey Steinberger, Ludovic Bellon, Sergio Ciliberto. Mode coupling in a hanging-fiber AFM used as a rheological probe . EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2014, 106, p.54005, pp.6. ⟨ensl-00881777⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

239

Files downloads

239

Contact

Informations

CCSD