Figure 3: Dynamical states under controlled drive conditions.
From: Mesoscopic chaos mediated by Drude electron-hole plasma in silicon optomechanical oscillators
(a–c) the fomo/2 state (Δ1≈2.406 nm), (d–f) the fomo/3 state (Δ2≈1.831 nm), (g–i) the fomo/4 state (Δ3≈1.394 nm) and (j–l) the chaos state (Δ4≈2.285 nm) respectively. The curves (a,d,g,j) are the measured RF power spectral density (PSD) where the grey curves are the background noise floor. Notice the subharmonics have the background at the noise floor. The curves (b,c,e,f,h,i,k,l) are the temporal waveforms and orbital phase portraits, where the blue dots are the measured raw data and the solid red curves are the noise-reduced orbital trajectories.
