Hydrodynamics of torsional probes for atomic force microscopy in liquids

Sudipta Basak, Arthur Beyder, Chiara Spagnoli, Arvind Raman, Fredrick Sachs

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Improving the force resolution of atomic force microscopy for soft samples in liquid requires soft cantilevers with reduced hydrodynamic cross section. Single and dual axis torsion levers [Beyder and Sachs, 2006] are an attractive technology. They have reduced area and reduced drift due to the symmetric support [Beyder, 2006] can add a second dimension using two independent axes. Here we investigate the hydrodynamics of these probes using three-dimensional transient fluid-structure interaction models with comparison to the experimental data. The computed Q factors and wet/dry resonance frequencies of different modes compare well with experimental measurements indicating that continuum viscous hydrodynamics can be used effectively to predict probe performance. The modeling further explores cross-axis hydrodynamic coupling and the influence of a nearby sample plane to provide guidance on approach algorithms and the possibilities of parametric detection.

Original languageEnglish (US)
Article number024914
JournalJournal of Applied Physics
Volume102
Issue number2
DOIs
StatePublished - 2007
Externally publishedYes

Fingerprint

hydrodynamics
atomic force microscopy
probes
liquids
levers
torsion
Q factors
continuums
fluids
cross sections
interactions

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Hydrodynamics of torsional probes for atomic force microscopy in liquids. / Basak, Sudipta; Beyder, Arthur; Spagnoli, Chiara; Raman, Arvind; Sachs, Fredrick.

In: Journal of Applied Physics, Vol. 102, No. 2, 024914, 2007.

Research output: Contribution to journalArticle

Basak, Sudipta ; Beyder, Arthur ; Spagnoli, Chiara ; Raman, Arvind ; Sachs, Fredrick. / Hydrodynamics of torsional probes for atomic force microscopy in liquids. In: Journal of Applied Physics. 2007 ; Vol. 102, No. 2.
@article{e63e977101504bd9806f64c240cff3db,
title = "Hydrodynamics of torsional probes for atomic force microscopy in liquids",
abstract = "Improving the force resolution of atomic force microscopy for soft samples in liquid requires soft cantilevers with reduced hydrodynamic cross section. Single and dual axis torsion levers [Beyder and Sachs, 2006] are an attractive technology. They have reduced area and reduced drift due to the symmetric support [Beyder, 2006] can add a second dimension using two independent axes. Here we investigate the hydrodynamics of these probes using three-dimensional transient fluid-structure interaction models with comparison to the experimental data. The computed Q factors and wet/dry resonance frequencies of different modes compare well with experimental measurements indicating that continuum viscous hydrodynamics can be used effectively to predict probe performance. The modeling further explores cross-axis hydrodynamic coupling and the influence of a nearby sample plane to provide guidance on approach algorithms and the possibilities of parametric detection.",
author = "Sudipta Basak and Arthur Beyder and Chiara Spagnoli and Arvind Raman and Fredrick Sachs",
year = "2007",
doi = "10.1063/1.2759197",
language = "English (US)",
volume = "102",
journal = "Journal of Applied Physics",
issn = "0021-8979",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - Hydrodynamics of torsional probes for atomic force microscopy in liquids

AU - Basak, Sudipta

AU - Beyder, Arthur

AU - Spagnoli, Chiara

AU - Raman, Arvind

AU - Sachs, Fredrick

PY - 2007

Y1 - 2007

N2 - Improving the force resolution of atomic force microscopy for soft samples in liquid requires soft cantilevers with reduced hydrodynamic cross section. Single and dual axis torsion levers [Beyder and Sachs, 2006] are an attractive technology. They have reduced area and reduced drift due to the symmetric support [Beyder, 2006] can add a second dimension using two independent axes. Here we investigate the hydrodynamics of these probes using three-dimensional transient fluid-structure interaction models with comparison to the experimental data. The computed Q factors and wet/dry resonance frequencies of different modes compare well with experimental measurements indicating that continuum viscous hydrodynamics can be used effectively to predict probe performance. The modeling further explores cross-axis hydrodynamic coupling and the influence of a nearby sample plane to provide guidance on approach algorithms and the possibilities of parametric detection.

AB - Improving the force resolution of atomic force microscopy for soft samples in liquid requires soft cantilevers with reduced hydrodynamic cross section. Single and dual axis torsion levers [Beyder and Sachs, 2006] are an attractive technology. They have reduced area and reduced drift due to the symmetric support [Beyder, 2006] can add a second dimension using two independent axes. Here we investigate the hydrodynamics of these probes using three-dimensional transient fluid-structure interaction models with comparison to the experimental data. The computed Q factors and wet/dry resonance frequencies of different modes compare well with experimental measurements indicating that continuum viscous hydrodynamics can be used effectively to predict probe performance. The modeling further explores cross-axis hydrodynamic coupling and the influence of a nearby sample plane to provide guidance on approach algorithms and the possibilities of parametric detection.

UR - http://www.scopus.com/inward/record.url?scp=34547566571&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547566571&partnerID=8YFLogxK

U2 - 10.1063/1.2759197

DO - 10.1063/1.2759197

M3 - Article

VL - 102

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 2

M1 - 024914

ER -