Three-dimensional display based on volume holographic kinoform in photopolymer

Abstract

Holographic three-dimensional (3D) display is a promising technique since it can present a 3D scene with all characteristics of real-world objects. Volume holography provides big data capacity for high resolution 3D display. It has the advantages of good wavelength and angular multiplexing properties over planar holography because of the Bragg condition. 3D display can be realized by recording holographic kinoforms into a volume holographic polymer. The purephase wavefront of a 3D object is generated and uploaded by a phase-only spatial light modulator. The phase-modulated data page is recorded in the volume holographic photopolymer. The 3D object can be reconstructed at a designed distance behind the volume holographic polymer by illuminating with the reference beam. Volume holographic kinoform can realize high-resolution 3D display without any lens or glasses by improving the space-bandwidth product of the display system.

Three-dimensional display based on refreshable volume holograms in photochromic diarylethene polymer

“…A phase-only spatial light modulator (SLM) is employed to upload the 3D scene information of holograms, which are generated based on wavefront of 3D objects with all the depth characteristics by the computerized algorithm 10 . A wavefront recording system is introduced 11 to write the computer-generated holograms (CGHs) into the photochromic diarylethene polymer. By angle multiplexed recording, numbers of CGHs are recorded in the same spot of the volume holographic polymer 12 , which is called angle-multiplexed holographic element (hogel).…”