Figure 3.

Principle of the metasurface design. a) A general design flow of metasurface for achieving complete amplitude, phase and polarization control. b) Schematic of a Poincare sphere with radius of $A_{\max }^2$. The inset color line represent the CVF to be generated. c) The extracted amplitude and phase distributions of the LCP and RCP components of the CVF along the color line in (b). d) Calculated rotation angle distributions of the four meta‐atoms corresponding to (c).