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research article
Time-Resolved Nonlinear Coupling between Orthogonal Flexural Modes of a Pristine GaAs Nanowire
2016
We demonstrate nonlinear coupling between two orthogonal flexural modes of single as-grown GaAs nanowires. The resonant frequency of one mode can be shifted over many line widths by mechanically driving the other mode. We present time-domain measurements of the mode coupling and characterize it further by pump probe experiments. Measurements show that a geometric nonlinearity causes the frequency of one mode to depend directly on the square amplitude of the other mode. Nearly degenerate orthogonal modes in nanowires are particularly interesting given their potential use in vectorial force sensing.
Type
research article
Web of Science ID
WOS:000370215200016
Authors
Cadeddu, D.
•
Braakman, F. R.
•
•
Matteini, F.
•
Rueffer, D.
•
•
Poggio, M.
Publication date
2016
Publisher
Published in
Volume
16
Issue
2
Start page
926
End page
931
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 1, 2016
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