Persistent Response in an Ultrastrongly Driven Mechanical Membrane Resonator
Fan Yang, Felicitas Hellbach, Felix Rochau, Wolfgang Belzig, Eva M. Weig, Gianluca Rastelli, Elke Scheer
Abstract
We study experimentally and theoretically the phenomenon of "persistent response" in ultrastrongly driven membrane resonators. The term persistent response denotes the development of a vibrating state with nearly constant amplitude over an extreme wide frequency range. We reveal the underlying mechanism by directly imaging the vibrational state using advanced optical interferometry. We argue that this state is related to the nonlinear interaction between higher-order flexural modes and higher-order overtones of the driven mode. Finally, we propose a stability diagram for the different vibrational states that the membrane can adopt.
Topics & Concepts
ResonatorPhysicsAmplitudeNonlinear systemInterferometryVibrationStability (learning theory)State (computer science)Condensed matter physicsOpticsQuantum mechanicsAlgorithmMachine learningComputer scienceMechanical and Optical ResonatorsPhotonic and Optical DevicesNonlinear Dynamics and Pattern Formation