title: Improvement of diffraction efficiency of flat-panel coherent backlight for holographic displays.
abstract: Coherent backlight is an essential component for holographic displays. In this paper, a compact design of edge-lit coherent backlight featuring two holographic optical elements for two-dimensional beam expansion is presented. Its diffraction efficiency is numerically studied using the coupled-wave theory. In experiments, the diffraction efficiency is measured as 4.3% and the feasibility of this design is verified by reconstructing 3D images with a spatial light modulator.
authors.forename: Wei
authors.initials: W
authors.lastname: Hu
authors.forename: Chao Ping
authors.initials: CP
authors.lastname: Chen
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Zhenghong
authors.initials: Z
authors.lastname: He
authors.forename: Xiao
authors.initials: X
authors.lastname: Li
authors.forename: Pengcheng
authors.initials: P
authors.lastname: Zhou
authors.forename: Jiangang
authors.initials: J
authors.lastname: Lu
authors.forename: Yikai
authors.initials: Y
authors.lastname: Su