Nanoscience and Nanotechnology Commons^™

Modeling, Analysis, And Experimental Validation Of A Bifurcation-Based Microsensor, Vijay Kumar, Yushi Yang, J. William Boley, Geroge Chiu, Jeff Rhoads

Geroge T.-C. Chiu

The potential to detect very small amounts of added mass has driven research in chemical and biological sensors based on resonant micro-and nanoelectromechanical systems over the past two decades. While traditional resonant mass sensors utilize chemomechanically induced shifts in linear natural frequency for mass detection, alternate sensing approaches which exploit near-resonant nonlinear behaviors have garnered interest from the research community due to their potential to yield improved sensor metrics and to simplify final device implementations. This paper investigates the development of an amplitude-based mass sensing approach which utilizes the dynamic transitions that occur near a cyclic-fold/saddle-node bifurcation in the nonlinear …