Print Email Facebook Twitter Opto-thermally excited multimode parametric resonance in graphene membranes Title Opto-thermally excited multimode parametric resonance in graphene membranes Author Dolleman, R.J. (TU Delft QN/Steeneken Lab) Houri, S. (TU Delft QN/van der Zant Lab) Chandrashekar, A. (TU Delft Dynamics of Micro and Nano Systems) Alijani, F. (TU Delft Dynamics of Micro and Nano Systems) van der Zant, H.S.J. (TU Delft QN/van der Zant Lab) Steeneken, P.G. (TU Delft Dynamics of Micro and Nano Systems; TU Delft QN/Steeneken Lab) Date 2018 Abstract In the field of nanomechanics, parametric excitations are of interest since they can greatly enhance sensing capabilities and eliminate cross-talk. Above a certain threshold of the parametric pump, the mechanical resonator can be brought into parametric resonance. Here we demonstrate parametric resonance of suspended single-layer graphene membranes by an efficient opto-thermal drive that modulates the intrinsic spring constant. With a large amplitude of the optical drive, a record number of 14 mechanical modes can be brought into parametric resonance by modulating a single parameter: The pre-tension. A detailed analysis of the parametric resonance allows us to study nonlinear dynamics and the loss tangent of graphene resonators. It is found that nonlinear damping, of the van der Pol type, is essential to describe the high amplitude parametric resonance response in atomically thin membranes. To reference this document use: http://resolver.tudelft.nl/uuid:fa6205da-770c-4a8c-a76f-13d617c33430 DOI https://doi.org/10.1038/s41598-018-27561-4 ISSN 2045-2322 Source Scientific Reports, 8 (1) Part of collection Institutional Repository Document type journal article Rights © 2018 R.J. Dolleman, S. Houri, A. Chandrashekar, F. Alijani, H.S.J. van der Zant, P.G. Steeneken Files PDF s41598_018_27561_4.pdf 2.7 MB Close viewer /islandora/object/uuid:fa6205da-770c-4a8c-a76f-13d617c33430/datastream/OBJ/view