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Weak signal enhancement by nonlinear resonance control in a forced nano-electromechanical resonator

Author

Listed:
  • Avishek Chowdhury

    (Université Paris-Saclay, 10 Boulevard Thomas Gobert)

  • Marcel G. Clerc

    (Universidad de Chile)

  • Sylvain Barbay

    (Université Paris-Saclay, 10 Boulevard Thomas Gobert)

  • Isabelle Robert-Philip

    (Université de Montpellier, CNRS)

  • Remy Braive

    (Université Paris-Saclay, 10 Boulevard Thomas Gobert
    Université de Paris, 5 Rue Thomas Mann)

Abstract

Driven non-linear resonators can display sharp resonances or even multistable behaviours amenable to induce strong enhancements of weak signals. Such enhancements can make use of the phenomenon of vibrational resonance, whereby a weak low-frequency signal applied to a bistable resonator can be amplified by driving the non-linear oscillator with another appropriately-adjusted non-resonant high-frequency field. Here we demonstrate experimentally and theoretically a significant resonant enhancement of a weak signal by use of a vibrational force, yet in a monostable system consisting of a driven nano-electromechanical nonlinear resonator. The oscillator is subjected to a strong quasi-resonant drive and to two additional tones: a weak signal at lower frequency and a non-resonant driving at an intermediate frequency. We analyse this phenomenon in terms of coherent nonlinear resonance manipulation. Our results illustrate a general mechanism which might have applications in the fields of microwave signal amplification or sensing for instance.

Suggested Citation

  • Avishek Chowdhury & Marcel G. Clerc & Sylvain Barbay & Isabelle Robert-Philip & Remy Braive, 2020. "Weak signal enhancement by nonlinear resonance control in a forced nano-electromechanical resonator," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15827-3
    DOI: 10.1038/s41467-020-15827-3
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    Cited by:

    1. Jiang, Jiahao & Li, Kaiyuan & Guo, Wei & Du, Luchun, 2021. "Energetic and entropic vibrational resonance," Chaos, Solitons & Fractals, Elsevier, vol. 152(C).
    2. Xu, Pengfei & Gong, Xulu & Wang, Haotian & Li, Yiwei & Liu, Di, 2023. "A study of stochastic resonance in tri-stable generalized Langevin system," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 626(C).

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