Coexisting attractors and chaotic canard explosions in a slow-fast optomechanical system

Abstract

The multiple time scale dynamics induced by radiation pressure and photothermal effects in a high-finesse optomechanical resonator is experimentally studied. At difference with two-dimensional slow-fast systems, the transition from the quasiharmonic to the relaxational regime occurs via chaotic canard explosions, where large-amplitude relaxation spikes are separated by an irregular number of subthreshold oscillations. We also show that this regime coexists with other periodic attractors, on which the trajectories evolve on a substantially faster time scale. The experimental results are reproduced and analyzed by means of a detailed physical model of our system.

8 pages; 6 figures

References in corpus (2)

• New dynamics in cerebellar Purkinje cells: torus canards
• Inhomogeneous mechanical losses in micro-oscillators with high reflectivity coating

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