Journal
APPLIED PHYSICS LETTERS
Volume 101, Issue 5, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4739416
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- Russell Berrie Nanotechnology Institute
- Israel Science Foundation [1475/09]
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In this letter, the nonlinear dynamics of a non-uniform micro-cantilever for atomic, force microscopy is investigated numerically for a non-contact mode of operation. A step-like heterogeneity in the cantilever longitudinal direction yields conditions for both 3:1 and 2:1 internal resonances that govern quasiperiodic energy transfer between the first and second structural bending modes. Thus, quasiperiodic micro-cantilever response can enable multiple function sensing, and possible increased accuracy of time-varying forces via single frequency base excitation. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4739416]
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