Random phase screen influence of the inhomogeneous tissue layer on the generation of acoustic vortices
Ma Zhiyao1, Ma Jun2, †, Zhang Dong3, ‡, Tu Juan3
       

(color online) Experimental results of (a) the axial pressure profile and the cross-sectional distributions of (b), (d) pressure and (c), (e) phase of the AV beam at the axial distances of (b), (c) 40 cm and (d), (e) 22 cm with the inhomogeneous tissue layer.