Investigation of fluid cell resonances in intermittent contact mode atomic force microscopy

J. Kokavecz, A. Mechler

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

In fluid, the probe resonance curve of the atomic force microscope contains several apparent resonance peaks whose origin is not well understood. In this work, the authors focus on identifying the cause of these peaks and finding the optimal imaging conditions for acoustic intermittent contact mode in fluid environment. The authors demonstrate that the peaks are also present in the spectrum of the fluid movement and in that of the shaker piezo. These peaks may or may not coincide with the natural resonance of a probe in liquid, thus it is possible to drive the probes off-resonance. Numerical calculations show the feasibility of off-resonance imaging, but predict much higher imaging force.

Original languageEnglish
Article number023113
JournalApplied Physics Letters
Volume91
Issue number2
DOIs
Publication statusPublished - Aug 1 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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