Signal amplification by sensitive control of bifurcation topology

R. B. Karabalin, Ron Lifshitz, M. C. Cross, M. H. Matheny, S. C. Masmanidis, M. L. Roukes

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number094102
JournalPhysical Review Letters
Issue number9
StatePublished - 28 Feb 2011


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