Fig. 3: Experimental demonstrations of the Willis meta-layer in beams.
From: An active mechanical Willis meta-layer with asymmetric polarizabilities
a Schematic of the experimental setup. Parameters of experimental setup are given in Supplementary Fig. 4 and Supplementary Table 2. b Experimentally measured wave field without control (circuit is switched OFF). Source data are provided as a Source Data file. c Experimentally measured wave field with control (circuit is switched ON). Source data are provided as a Source Data file. d Corresponding numerical simulations to validate the results in (c). e Experimentally measured and numerically simulated transmittance, reflectance and absorption for frequencies from 8 to 18 kHz demonstrating the reconfigurable broadband operability. Source data are provided as a Source Data file.
