Fig. 3: A holographic meta-lens via the BC meta-skin paper-cutting.

a Illustration of the ultrasonic hologram via BC meta-skin paper-cutting. The distance between the holographic meta-lens and the hologram plane is 35 mm. b An optical image showing the ultrathin and ultralight holographic meta-lens fabricated via BC meta-skin paper-cutting. c Intensity fields on the hologram planes from the calculated, simulated and experimentally measured results. d Intensity distribution on section lines I, II and III, as marked by the white dashed lines in (c) (\(x=0.75{{{{{\rm{cm}}}}}}\), \(0.0{{{{{\rm{cm}}}}}}\), \(-0.75{{{{{\rm{cm}}}}}}\), respectively) for quantitative comparison.