Fig. 2: Design of the acoustic SSAW metasurface and self-reconstruction of the Airy-Talbot effect.
From: Superwavelength self-healing of spoof surface sonic Airy-Talbot waves
a Experimental setup and device model. b Amplitude distribution of the source comprising continuous (blue) and discretized (red) curves. c Phase distribution. d–g Simulated acoustic fields with cylinders (ka = 1, 4, 8.8 (upper limit), 10) placed at (x = 0.15 m, y = 0.6 m) above the designed SSAW device. k is the equivalent wavenumber and a is the radius of the obstacle. h–k Amplitude profiles along the dashed lines denoted in (d–g). The theoretical and experimental results are denoted by the red and blue lines, respectively.
