Strong 4-mode coupling of nanomechanical string resonators

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Applied Physics Letters. 2017, 111(13), 133109. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4995230
Zusammenfassung

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 resonance of the four coupled fundamental vibrational modes of a resonator pair, giving rise to a simple and a multimode avoided crossing, respectively.

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ISO 690GAJO, Katrin, Simon SCHÜZ, Eva M. WEIG, 2017. Strong 4-mode coupling of nanomechanical string resonators. In: Applied Physics Letters. 2017, 111(13), 133109. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4995230
BibTex
@article{Gajo2017-07-10T16:15:02ZStron-40421,
  year={2017},
  doi={10.1063/1.4995230},
  title={Strong 4-mode coupling of nanomechanical string resonators},
  number={13},
  volume={111},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Gajo, Katrin and Schüz, Simon and Weig, Eva M.},
  note={Article Number: 133109}
}
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