FIG. 3.

(Color online) The iterative angular spectrum approach was implemented and validated for generating pressure profile of a husky dog. (a) Target pressure profile in the focal plane of a transducer. (b) Simulated pressure profile. (c) Measured pressure profile. The simulated and measured pressure profiles are similar to the target image. The feature similarity index for the measured pressure profile is 0.72 with the simulated result as a reference image. (d) Rapid prototyped lens. The pressures are normalized with respect to the highest pressure in the plane.