The fabrication of 3D metamaterials is extremely difficult thus, metasurfaces play a notable role as optical devices in the visible range. Metamaterials consist of subwavelength artificial structures that perform innovative functions, exceeding the limitations of bulk materials. Recently, with the enormous development of nanofabrication technology, metamaterials and metasurfaces have ushered in a new era for hologram study and other research fields in engineering optics 2.0 ( 9). This method can satisfy the needs of a holographic display and be useful in other applications, such as laser fabrication, optical storage, optics communications, and information processing. The space channel consists of silicon nitride nanopillars with a high modulation efficiency. The design is based on a space channel metasurface and a high-speed dynamic structured laser beam modulation module. In this work, we demonstrate a design of meta-holography that can achieve 2 28 different holographic frames and an extremely high frame rate (9523 frames per second) in the visible range. However, there are long-existing challenges to achieving dynamic meta-holography in the visible range, such as low frame rate and low frame number. Metasurfaces consisting of subwavelength structures show great potential in light field manipulation, which is useful for overcoming the drawbacks of common computer-generated holography.

The hologram is an ideal method for displaying three-dimensional images visible to the naked eye.

3d holographic glass paintings