4 papers
Molecularly Thin Polyaramid Nanomechanical Resonators
Hagen Gress, Cody L. Ritt, Inal Shomakhov +8
Two-dimensional polyaramids exhibit strong hydrogen bonding to create molecularly thin nanosheets analogous to graphene. Here, we report the first nanomechanical resonators made ou…
Multistability and Noise-Induced Transitions in Dispersively-Coupled Nonlinear Nanomechanical Modes
David Allemeier, İsmet İnönü Kaya, M. Selim Hanay +1
We study the noisy dynamics of two coupled bistable modes of a nanomechanical beam. When de-coupled, each driven mode obeys the Duffing equation of motion, with a well-defined bist…
Theoretical modeling of the dynamic range of an elastic nanobeam under tension with a geometric nonlinearity
N. W. Welles, M. Ma, K. L. Ekinci +1
A theoretical description of the weakly nonlinear and mode-dependent dynamics of a nanoscale beam that is under intrinsic tension is developed. A full analysis of the dynamic range…
Mode-Dependent Scaling of Nonlinearity and Linear Dynamic Range in a NEMS Resonator
M. Ma, N. Welles, O. Svitelskiy +5
Even a relatively weak drive force is enough to push a typical nanomechanical resonator into the nonlinear regime. Consequently, nonlinearities are widespread in nanomechanics and…