Figure 4: Spatial mapping of multimode Brownian motions up to the ninth mode for a SiC microdisk resonator (a=29.5 μm, b=7.3 μm).
From: Spatial mapping of multimode Brownian motions in high-frequency silicon carbide microdisk resonators
(a) Wide-range frequency spectrum with nine observed thermomechanical resonance modes. Insets: The nine individual resonances with detailed characteristics, including Brownian motion strength and noise floor in the displacement domain. (b) High-resolution spatial mapping of all the nine modes. Shown for each mode are the experimentally mapped mode shape (on the left of each panel), frequency and quality factor (top), and FEM simulated mode shapes (right, both top and aerial views). Red (blue) colour indicates larger (smaller) motion amplitude in the normalized mode shape maps.
