Nonlinearity-induced synchronization enhancement in micromechanical oscillators

Dario Antonio, David A. Czaplewski, Jeffrey R. Guest, Daniel López, Sebastián I. Arroyo, Damián H. Zanette

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


An autonomous oscillator synchronizes to an external harmonic force only when the forcing frequency lies within a certain interval - known as the synchronization range - around the oscillator's natural frequency. Under ordinary conditions, the width of the synchronization range decreases when the oscillation amplitude grows, which constrains synchronized motion of micro- and nanomechanical resonators to narrow frequency and amplitude bounds. Here, we show that nonlinearity in the oscillator can be exploited to manifest a regime where the synchronization range increases with increasing oscillation amplitude. Experimental data are provided for self-sustained micromechanical oscillators operating in this regime, and analytical results show that nonlinearities are the key determinants of this effect. Our results provide a new strategy to enhance the synchronization of micromechanical oscillators by capitalizing on their intrinsic nonlinear dynamics.

Original languageEnglish (US)
Article number034103
JournalPhysical review letters
Issue number3
StatePublished - Jan 23 2015

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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