An acoustic Maxwell’s fish-eye lens based on gradient-index metamaterials

Yuan Bao-guo^{1, 2}, Tian Ye¹, Cheng Ying^{1, 3, †,}, Liu Xiao-jun^{1, 3, ‡,}

Schematic view of the proposed AMFE lens. The proposed AMFE lens is fabricated by gradually decreasing the a-value, and the total number of the SAM units is 289.