Figure 5
From: Metasurface-based broadband hologram with high tolerance to fabrication errors

Influence of the length, width and surface shape fabrication errors.
(a) The phase and transmission efficiencies for different wide (W) and length (L). (b) The phase and transmission efficiency corresponding to the changing from ideal rectangle shape to elliptic cylinders. The inset is the unit cell used in CST and the wavelength is set as 632.8 nm.