Fig. 2
From: On-axis structured beams generation via moiré and Mie resonant metallo-dielectric moiré gratings

(a) Schematic of Huygens’ principle based simulation setup, (b) spatial light modulator based experimental setup for generation of on-axis zeroth order beams, (c) experimental and (d) simulated interferogram and zeroth order beam profiles of LFG of \(\ell =7\) and \(-7\).