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Time-resolved nonlinear coupling between orthogonal flexural modes of a pristine GaAs nanowire

Cadeddu, D. and Braakman, F. R. and Tütüncüoglu, G. and Matteini, F. and Rüffer, D. and Fontcuberta i Morral, A. and Poggio, M.. (2016) Time-resolved nonlinear coupling between orthogonal flexural modes of a pristine GaAs nanowire. Nano Letters, 16 (2). pp. 926-931.

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Official URL: http://edoc.unibas.ch/41691/

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Abstract

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.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Poggio, Martino and Cadeddu, Davide and Braakman, Floris
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
ISSN:1530-6984
e-ISSN:1530-6992
Note:Publication type according to Uni Basel Research Database: Journal article -- The final publication is available at American Chemical Society, see DOI link
Language:English
Identification Number:
Last Modified:28 Sep 2018 11:30
Deposited On:25 Apr 2016 14:12

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