Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Harnessing bifurcations in tapping-mode atomic force microscopy to
  calibrate time-varying tip-sample force measurements   Torsional harmonic cantilevers allow measurement of time varying tip-sample
forces in tapping-mode atomic force microscopy. Accuracy of these force
measurements is important for quantitative nanomechanical measurements. Here we
demonstrate a method to convert the torsional deflection signals into a
calibrated force waveform with the use of non-linear dynamical response of the
tapping cantilever. Specifically the transitions between steady oscillation
regimes are used to calibrate the torsional deflection signals.

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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: astro-ph