Fig. 5: Stability measurements.
From: Gigahertz optoacoustic vibration in Sub-5 nm tip-supported nano-optomechanical metasurface

a Oscillation FFT spectrum of the TSNOMS under 5 temperature change cycles. b Simulated thermal distribution of electron and lattice temperatures on the TSNOMS. c Illustration of the aerial pump-probe scan of the TSNOMS with labeled scan regions and histogram of resonance frequencies corresponding to the labeled scan regions.