Journal
APPLIED PHYSICS LETTERS
Volume 111, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4995230
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Funding
- European Union's Horizon 2020 research and innovation program [732894]
- Deutsche Forschungsgemeinschaft via the collaborative research center [SFB 767]
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We investigate mechanical mode coupling between the four fundamental flexural modes of two doubly clamped, high-Q silicon-nitride nanomechanical string resonators. Strong mechanical coupling between the strings is induced by the strain mediated via a shared clamping point, engineered to increase the exchange of oscillatory energy. One of the resonators is controlled dielectrically, which results in strong coupling between its out-of-plane and in-plane flexural modes. We show both inter-string out-of-plane-in-plane and 3-mode resonances of the four coupled fundamental vibrational modes of a resonator pair, giving rise to a simple and a multimode avoided crossing, respectively. Published by AIP Publishing.
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