Frequency comb from a single driven nonlinear nanomechanical mode

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Physical Review X. American Physical Society (APS). 2022, 12(4), 041019. eISSN 2160-3308. Available under: doi: 10.1103/PhysRevX.12.041019
Zusammenfassung

Phononic frequency combs have attracted increasing attention both as a qualitatively new type of nonlinear phenomena in vibrational systems and from the point of view of applications. It is commonly believed that at least two modes must be involved in generating a comb. We demonstrate that a comb can be generated by a single nanomechanical mode driven by a resonant monochromatic drive. The comb emerges where the drive is still weak, so the anharmonic part of the mode potential energy remains small. We relate the experimental observation to a negative nonlinear friction induced by the resonant drive, which makes the vibrations at the drive frequency unstable. We directly map the measured trajectories of the emerging oscillations in the rotating frame and show how these oscillations lead to the frequency comb in the laboratory frame. The results go beyond nanomechanics and suggest a qualitatively new approach to generating tunable frequency combs in single-mode vibrational systems. They demonstrate new sides of the interplay of conservative and dissipative nonlinearities in driven systems.

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530 Physik
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Classical mechanics, dissipative dynamics, transport phenomena, micromechanical & nanomechanical oscillators, nanomechanical devices, nonequilibrium systems, chaos & nonlinear dynamics, phononic frequency combs, single mode vibrational systems
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ISO 690OCHS, Jana Simone, Daniel K.J. BONESS, Gianluca RASTELLI, Maximilian SEITNER, Wolfgang BELZIG, Mark I. DYKMAN, Eva M. WEIG, 2022. Frequency comb from a single driven nonlinear nanomechanical mode. In: Physical Review X. American Physical Society (APS). 2022, 12(4), 041019. eISSN 2160-3308. Available under: doi: 10.1103/PhysRevX.12.041019
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@article{Ochs2022-07-08T17:39:44ZFrequ-58019.2,
  year={2022},
  doi={10.1103/PhysRevX.12.041019},
  title={Frequency comb from a single driven nonlinear nanomechanical mode},
  number={4},
  volume={12},
  journal={Physical Review X},
  author={Ochs, Jana Simone and Boneß, Daniel K.J. and Rastelli, Gianluca and Seitner, Maximilian and Belzig, Wolfgang and Dykman, Mark I. and Weig, Eva M.},
  note={J. S. O., D. K. J. B., W. B., and E. M. W. gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Project-ID No. 425217212-SFB 1432. Article Number: 041019}
}
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J. S. O., D. K. J. B., W. B., and E. M. W. gratefully acknowledge financial support from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Project-ID No. 425217212-SFB 1432.
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