Skip to main content
Fig. 13 | Nano Convergence

Fig. 13

From: Acoustic wave science realized by metamaterials

Fig. 13

b is adapted from [9]

a 3D hyperbolic, elliptic and circle isofrequency contours. The circle contour denotes a homogeneous material. The elliptic and hyperbolic contours are unusual cases which are not limited to the circle one. For elliptic case, there is a huge difference between the positive components. For hyperbolic case, there is a single negative component. b An experimental pressure measurement of an acoustic hyperlens.

Back to article page