Figure 4
From: Breaking the acoustic diffraction limit with an arbitrary shape acoustic magnifying lens
(a,b) The normalized near and far field results of the elliptical shape magnifying lens. (c,d) The same results of the same sources for a lens with an arbitrary shape cross-section. For both simulations, the material of the stretched region is the same as of the previous cases, which were obtained by considering \(\Delta\) to be 0.001.
