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American Institute of Physics, Applied Physics Letters, 17(105), p. 173111

DOI: 10.1063/1.4900928

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Nonlinear motion and mechanical mixing in as-grown GaAs nanowires

Journal article published in 2014 by F. R. Braakman ORCID, D. Cadeddu, G. Tütüncüoglu, G. Tütüncüoglu, F. Matteini, D. Rüffer, D. Rüffer, A. Fontcuberta i. Morral, A. Fontcuberta i. Morral, M. Poggio
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This paper is available in a repository.

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Abstract

We report nonlinear behavior in the motion of driven nanowire cantilevers. The nonlinearity can be described by the Duffing equation and is used to demonstrate mechanical mixing of two distinct excitation frequencies. Furthermore, we demonstrate that the nonlinearity can be used to amplify a signal at a frequency close to the mechanical resonance of the nanowire oscillator. Up to 26 dB of amplitude gain is demonstrated in this way.