Van der Pol–Duffing oscillator and its application to gain-driven light-matter interaction
Chunlei Zhang, Mun Kim, Jianbo Wang, C.‐M. Hu
Abstract
We report the observation of frequency nonlinearity within a gain-embedded resonator. A coupling model, integrating the van der Pol--Duffing oscillator, is theoretically proposed. The proposed model is substantiated through experimental verification in coupled LRC circuits, demonstrating bistable behavior. Furthermore, by application of the van der Pol--Duffing oscillator to a gain-embedded microwave cavity, our model is demonstrated as an alternative theoretical perspective for understanding the gain-driven polariton.
Topics & Concepts
Van der Pol oscillatorPhysicsQuantum electrodynamicsQuantum mechanicsNonlinear systemMechanical and Optical ResonatorsQuantum Mechanics and Non-Hermitian PhysicsQuantum optics and atomic interactions