Oscillatory dynamics in nanocavities with noninstantaneous Kerr response
  We investigate the impact of a finite response time of Kerr nonlinearities over the onset of spontaneous oscillations (self-pulsing) occurring in a nanocavity. The complete characterization of the underlying Hopf bifurcation in the full parameter space allows us to show the existence of a critical value of the response time and to envisage different regimes of competition with bistability. The transition from a stable oscillatory state to chaos is found to occur only in cavities which are detuned far off-resonance, which turns out to be mutually exclusive with the region where the cavity can operate as a bistable switch. 
Andrea Armaroli, Stefania Malaguti, Gaetano Bellanca, Stefano Trillo,   Alfredo de Rossi and Sylvain Combri\'e
nlin.CD physics.optics