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) (a) Schematic diagram of the AV generation system with the N-element circular transducer array, and (b) the sketch map of the axial profile with the insertion of an inhomogeneous tissue layer.