Negative nonlinear damping of a graphene mechanical resonator

Abstract

We experimentally investigate the nonlinear response of a multilayer graphene resonator using a superconducting microwave cavity to detect its motion. The radiation pressure force is used to drive the mechanical resonator in an optomechanically induced transparency configuration. By varying the amplitudes of drive and probe tones, the mechanical resonator can be brought into a nonlinear limit. Using the calibration of the optomechanical coupling, we quantify the mechanical Duffing nonlinearity. By increasing the drive force, we observe a decrease in the mechanical dissipation rate at large amplitudes, suggesting a negative nonlinear damping mechanism in the graphene resonator. Increasing the optomechanical backaction, we observe a nonlinear regime not described by a Duffing response that includes new instabilities of the mechanical response.

References in corpus (12)

• Optomechanically induced transparency
• Nanomechanical motion measured with precision beyond the standard quantum limit
• Graphene mechanical oscillators with tunable frequency
• Optomechanical coupling between a multilayer graphene mechanical resonator and a superconducting microwave cavity
• Probing thermal expansion of graphene and modal dispersion at low-temperature using graphene NEMS resonators
• Coupling graphene mechanical resonators to superconducting microwave cavities
• Control of microwave signals using circuit nano-electromechanics
• Stamp transferred suspended graphene mechanical resonators for radio-frequency electrical readout
• Graphene optomechanics realized at microwave frequencies
• Quantum Friction in Nanomechanical Oscillators at Millikelvin Temperatures
• Molybdenum-Rhenium alloy based high-$Q$ superconducting microwave resonators
• Optomechanical response of a non-linear mechanical resonator

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• Nonlinear Graphene Quantum Capacitors for Electro-optics
• Temperature Dependent Non-linear Damping in Palladium Nano-mechanical Resonators
• Nonlinear quantum Langevin equations for bosonic modes in solid-state systems
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• Nanoelectromechanical resonators from high-T${}_c$ superconducting crystals of Bi${}_2$Sr${}_2$Ca${}_1$Cu${}_2$O${}_{8+\delta }$
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• Mechanical dissipation in MoRe superconducting metal drums
• Room temperature cavity electromechanics in the sideband-resolved regime
• Elastic properties of few unit cell thick superconducting crystals of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Tunable parametric amplification of a graphene nanomechanical resonator in the nonlinear regime