Figure 1
From: Gallium phosphide optical metasurfaces for visible light applications

Schematics of metasurface design. (A) Asymmetric grating (blaze grating phase profile) (B) PBOE grating (blaze grating phase profile) (C) Metalens unit cell.
From: Gallium phosphide optical metasurfaces for visible light applications
Schematics of metasurface design. (A) Asymmetric grating (blaze grating phase profile) (B) PBOE grating (blaze grating phase profile) (C) Metalens unit cell.