Figure 4
From: Cloaking, trapping and superlensing of lamb waves with negative refraction
Wave focusing in a perfect corner. (a) Experimental configuration. (b) Real part of the normal displacement wave field simulated at the surface of the plate at the crossing frequency \(f_c=3.32\) MHz (SimSonic3D software33, www.simsonic.fr). (c) Real part of the normal displacement wave field experimentally measured at the surface of the plate at the crossing frequency \(f_c=3.46\) MHz.
