Figure 4: Nonlinear dynamics at high laser power.
From: Nonlinear dynamics and chaos in an optomechanical beam
(a,b) Colour contour plot of the radio-frequency spectrum as a function of the laser wavelength (λl) obtained at a laser power of Pl=4 mW. (a) Correspond to a λl-forward scan, while panel b correspond to λl-backward scan. (c) Displays a zoom of the transition between M=2 to M=1 plateaus through subsequent period doubling bifurcations. The colour contrast has been altered with respect to c to highlight the period-doubling route. The inset to c shows radio-frequency spectra at three different laser wavelengths within the M=2 to M=1 transition, which are 1,534 nm (black curve), 1,534.3 nm (red curve) and 1,534.8 nm (green curve). (d) Shows radio-frequency spectra below (at λl=1,537.05 nm, black curve) and above the bifurcation onsetting chaos (λl=1,540.70 nm, red curve).
