LIGHT-EFFICIENT 2-DIMENSIONAL PERFECT SHUFFLES WITH DUPONT PHOTOPOLYMER HOLOGRAMS

We describe four-facet volume phase-transmission holograms made with D uPont photopolymer. The holograms implement light-efficient two-dimens ional perfect shuffles based on a one-copy algorithm previously descri bed by us [Appl. Opt. 31, 5464-5467 (1992)]. We have improved the real diffraction efficiency of these facet holograms to 65.5%, and we have improved the geometrical accuracy of the output over previous impleme ntations by changing the experimental setup and the orientation of the hologram. We describe the procedures for making the holograms and giv e experimental results.