Figure 2From: Simulation of ultrasound nonlinear propagation on GPU using a generalized angular spectrum methodEvolution of the pressure obtained in simulation for inhomogeneous nonlinear medium. Two planes (x = 0 and y = 0) are displayed for the fundamental (a) and the second harmonic (b) field. The limit between the two regions with different nonlinear parameters corresponds to the probe axis of symmetry x = 0.Back to article page