Fig. 3: Scalar calculation of the CGH-modulated light wave.
From: Efficient full-path optical calculation of scalar and vector diffraction using the Bluestein method

a Digital CGH derived from the GSW algorithm. b Optical setup for holographic reconstruction. Here the focal length of the FT lens is 600 mm. The dimension of the CGH is 8.64 mm (1080 × 1080 pixels), and the incident wavelength is 800 nm. c–f Calculated intensity distributions with changing ROIs. g–j Calculated phase distributions with changing ROIs. Here, sampling points are fixed at 1080 × 1080