Amplitude stabilization in a synchronized nonlinear nanomechanical oscillator
arXiv:2112.08788 · doi:10.1038/s42005-022-00861-y
Abstract
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.
arXiv comment6 pages, 4 figures
References in corpus (9)
- Nonlinear Micromechanical Casimir Oscillator
- Synchronization of two anharmonic nanomechanical oscillators
- Frequency fluctuations in silicon nanoresonators
- New Experimental Constraints on Non-Newtonian Forces below 100 microns
- Dynamics of soliton self-injection locking in a photonic chip-based microresonator
- A Carbon Nanotube Based Nanorelay
- Logic-Memory Device of a Mechanical Resonator
- DC voltage-sustained self-oscillation of a nano-mechanical electron shuttle
- Measuring frequency fluctuations in nonlinear nanomechanical resonators