Nonlinear coupling and dissipation in two-dimensional resonators

Research output: ThesisDissertation (TU Delft)

4 Downloads (Pure)

Abstract

Micro and nanomechanical resonators are essential to the state-of-the-art communication, data processing, timekeeping, and sensing systems. The discovery of graphene and other two-dimensional (2D) materials has been a profound source of inspiration for the next generation of these devices, owing to their exceptional mechanical, electrical, and thermal properties. However, alongside their advantages, the atomically thin nature of these resonators also presents its own unique challenges, as the dynamic response of these resonators rapidly becomes nonlinear, where nonlinear coupling and dissipation processes manifest. To unleash the full potential of these resonators, a comprehensive understanding of the emerging nonlinear phenomena is crucial. In this pursuit, this thesis studies nonlinear dissipation pathways in 2D material resonators that arise from the coupling of their internal mechanical modes to each other as well as to theirmicroscopic physics. The thesis consists of six chapters.
Original languageEnglish
Awarding Institution
  • Delft University of Technology
Supervisors/Advisors
  • Steeneken, P.G., Supervisor
  • Alijani, F., Supervisor
Award date29 Nov 2023
Print ISBNs978-94-6366-781-4
DOIs
Publication statusPublished - 2023

Keywords

  • nanomechanics
  • nonlinear dynamics
  • graphene
  • two-dimensional materials
  • internal resonance
  • mode coupling
  • nonlinear damping, frequency combs
  • nonlinear reduced-ordermodelling
  • NEMS
  • laser interferometry
  • magnetic phase transition

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