Fig. 1. (a) Schematic diagram of the improved setup. (b) The optical path geometry through the APBS modulator.

Fig. 2. (a) Example of the CGHs designed according to Eq. (3); (b) the spatial frequency of the CGH; (c) the intensity distribution on the back focal plane of the lens L1 when the CGH is displayed on the SLM of the system.

Fig. 3. Example of the experimental results when the parameter δ is taken as (a) δ=θ, (b) δ=θ+π/2, and (c) δ=2θ+2πr/r0+π/2, respectively. The arrows in the upper right corners of the subpictures correspond to the orientation of the polarization analyzer located in front of the imaging sensor.

Fig. 4. Example of the CGHs designed according to Eq. (3) using two completely different patterns ux and uy.

Fig. 5. Output images of the system when the CGH shown in Fig. 4 was displayed on the SLM and the polarization analyzer was rotated to different orientations. The arrows in the upper right corners of the sub pictures correspond to the orientation of the polarization analyzer located in front of the imaging sensor.