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Article Dans Une Revue Communications Physics Année : 2022

Amplitude stabilization in a synchronized nonlinear nanomechanical oscillator

Résumé

In contrast to the well-known phenomenon of frequency stabilization in a synchronized noisy nonlinear oscillator, little is known about its amplitude stability. In this paper, we investigate experimentally and theoretically the amplitude evolution and stability of a nonlinear nanomechanical self-sustained oscillator that is synchronized with an external harmonic drive. We show that the phase difference between the tones plays a critical role on the amplitude level, and we demonstrate that in the strongly nonlinear regime, its amplitude fluctuations are reduced considerably. These findings bring to light a new facet of the synchronization phenomenon, extending its range of applications beyond the field of clock-references and suggesting a new means to enhance oscillator amplitude stability.

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Dates et versions

hal-03689941 , version 1 (07-06-2022)

Licence

Paternité - Pas d'utilisation commerciale

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Martial Defoort, Sébastien Hentz, Steven W. Shaw, Oriel Shoshani. Amplitude stabilization in a synchronized nonlinear nanomechanical oscillator. Communications Physics, 2022, pp.1-7. ⟨10.1038/s42005-022-00861-y⟩. ⟨hal-03689941⟩
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