Nonlinear parametric amplification in a triport nanoelectromechanical device

Parametric amplification in single-walled carbon nanotube nanoelectromechanical resonators

The low quality factor (Q) of single-walled carbon nanotube (SWNT) resonators has limited their sensitivity in sensing application. To this end, we employ the technique of parametric amplification by modulating the spring constant of SWNT resonators at twice the resonant frequency and achieve 10 times Q enhancement. The highest Q obtained at room temperature is around 700, which is 3–4 times be...

A GaAs-based Optical Nanoelectromechanical Device

Optical systems are being developed to reach the functionality and large-scale integration of electronic systems. Strides are being made to develop an on-chip optical system by designing and fabricating an Optical NanoElectroMechanical, ONEM, device structure based in a gallium arsenide material system. Gallium arsenide, a III-V compound semiconductor, was chosen due to its high-refractive inde...

Asymmetric parametric amplification in nonlinear left-handed transmission lines

We study parametric amplification in nonlinear left-handed transmission lines, which serve as model systems for nonlinear negative-index metamaterials. We experimentally demonstrate the amplification of a weak signal in the three following regimes: with the signal in the left-handed band, with the signal in the stop band, and with the signal at a defect frequency. In particular, we demonstrate ...

Mems Q-Factor Enhancement Using Parametric Amplification: Theoretical Study and Design of a Parametric Device

Parametric amplification is an interesting way of artificially increasing a MEMS Quality factor and could be helpful in many kinds of applications. This paper presents a theoretical study of this principle, based on Matlab/Simulink® simulations, and proposes design guidelines for parametric structures. A new device designed with this approach is presented together with the corresponding FEM sim...

Nonlinear dissipation in diamond nanoelectromechanical resonators