Fig. 2.

The IHLLS system calibration. a) The LLS resolution target imaging (a, c (blue), d (blue)) with $M_{T-LLS}$=62.5; b) The IHLLS resolution target imaging with one diffractive lens, IHLLS 1L, (b, c (red), d (red)) with $M_{T-IHLLS}$=62.5; c), d, Cross-sections of group 7 and element 6 respectively; e) Opticstudio simulation of IHLLS 1L, with the constraint $M_{T-IHLLS}$=62.5, to calculate the focal length (f_SLM = 400 mm) of a single diffractive lens uploaded on the SLM and the distances between each pair of optical components; f), g) These distances are kept constant for the simulation of IHLLS with two diffractive lenses, IHLLS 2L, to obtain the focal lengths of the two diffractive lenses on the SLM, f_d1 = 220 mm and f_d2 = 2356 mm.