Fig. 4
Design and experimental characterization of an OAM-multiplexing meta-hologram capable of the lensless reconstruction of multiple distinctive OAM-dependent holographic images. a The design approach of an OAM-multiplexing hologram. b The optical image of a fabricated OAM-multiplexing meta-hologram based on the design in a. c The reconstruction of a complex interference pattern from the OAM-multiplexing meta-hologram through an incident beam with a planar wavefront. d Experimental reconstruction of four distinctive OAM-dependent holographic images through incident OAM beams with topological charges of l = −2, −1, 1, 2, respectively
