Fig. 1: Structural and steady-state optical measurements and simulations.
From: Gigahertz optoacoustic vibration in Sub-5 nm tip-supported nano-optomechanical metasurface

a Concept image showing the vibrational response of the probe signal through optical excitation of the TSNOMS. b Concept image of the TSNOMS. c, d SEM image of the TSNOMS. e Measured reflection spectra of the TSNOMS (black lines) and reflection spectra simulated by the finite element method (red line). f The simulated electric field intensity distribution of the TSNOMS.