Fig. 4: Resonator result.
From: Ultra-coherent nanomechanical resonators based on inverse design

a Mechanical ring-down measurement of the best measured sample corresponding to design D4. b Spectrum of a D1 sample.
From: Ultra-coherent nanomechanical resonators based on inverse design

a Mechanical ring-down measurement of the best measured sample corresponding to design D4. b Spectrum of a D1 sample.