Strong 4-mode coupling of nanomechanical string resonators
Strong 4-mode coupling of nanomechanical string resonators
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2017
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H2020 FET PROACTIVE Hybrid Optomechanical Technologies (HOT)
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Applied Physics Letters ; 111 (2017), 13. - 133109. - ISSN 0003-6951. - eISSN 1077-3118
Abstract
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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GAJO, Katrin, Simon SCHÜZ, Eva M. WEIG, 2017. Strong 4-mode coupling of nanomechanical string resonators. In: Applied Physics Letters. 111(13), 133109. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4995230BibTex
@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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