Figure 4
From: Manipulating Acoustic Wavefront by Inhomogeneous Impedance and Steerable Extraordinary Reflection
Conversion from PAWs to SAWs via SAI interface.
The PAW with unit amplitude and ω = 15 Krad/s is normally incident in water. Only reflected acoustic pressure is plotted. (a) The SAI of Eq.(7) is set to be ψ(y) = −11 y for y < 0 and ψ(y) = 11 y for y > 0. SAWs are bifurcated at the origin and confined near the surface. (b) The reflected sound pressure level of (a). (c) The reflected sound pressure level when a homogeneous SAI is adopted instead.
