Abstract
We describe a novel amplification scheme based on inducing dynamical changes to the topology of a bifurcation diagram of a simple nonlinear dynamical system. We have implemented a first bifurcation-topology amplifier using a coupled pair of parametrically driven high-frequency nanoelectromechanical systems resonators, demonstrating robust small-signal amplification. The principles that underlie bifurcation-topology amplification are simple and generic, suggesting its applicability to a wide variety of physical, chemical, and biological systems.
- Received 25 August 2010
DOI:https://doi.org/10.1103/PhysRevLett.106.094102
© 2011 American Physical Society
Viewpoint
Signal amplification through bifurcation in nanoresonators
Published 28 February 2011
A pair of coupled nanomechanical resonators are used in a novel way to amplify a weak signal.
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