Fig. 3
From: Metasurface holographic image projection based on mathematical properties of Fourier transform
Design of the original Huygens’ metasurface hologram and the rotational invariance property based on it. a Phase map of the original holographic image based on the modified GSW algorithm. b Numerical simulations and c experimental results of holographic electric field intensity distribution at a focal length of 100 mm for 10 GHz working frequency. d Phase map of the rotational invariance property utilizing Huygens’ metasurface. e Numerical simulations (at 100 mm) and f. experimental results of holographic electric field intensity distribution at 10 GHz working frequency