Experimental validation of theoretical models for the frequency response of atomic force microscope cantilever beams immersed in fluids

By J. Chon, Paul Mulvaney, John E. Sader. 2000

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Detailed measurements of the frequency responses of a series of rectangular atomic force microscope (AFM) cantilever beams, immersed in a range of fluids, have been performed to test the validity and accuracy of the recent theoretical model of Sader [J. Appl. Phys. 84, 64 (1998)]. This theoretical model gives the frequency response of a cantilever beam, that is immersed in a viscous fluid and excited by an arbitrary driving force. Very good agreement between experimental measurements and theoretical calculations is found for all fluids considered. Furthermore, a critical assessment of the well-known inviscid model is presented, which demonstrates that this model is not applicable to AFM cantilever beams in general.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering

View Paper: https://www.semanticscholar.org/paper/03b3b5f6284d7589eab7f3141f604f53bec466db

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In Atomic and Molecular Physics, and Optics

  1. Maurizio Porfiri
  2. Daniel J. Inman
  3. Brian P. Mann
  4. Alper Erturk

In Biomedical Engineering

  1. Alper Erturk
  2. Daniel J. Inman
  3. Brian P. Mann
  4. S. Stanton
  5. Earl H. Dowell
  6. Lihua Tang
  7. Matteo Aureli
  8. Maurizio Porfiri

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