Dynamic high efficiency 3D meta-holography in visible range with large frames number and high frame rate based on space division multiplexing design

TL;DR

This paper introduces a high-efficiency, dynamic 3D meta-holography system in the visible range that achieves large frame numbers and high frame rates using space division multiplexing metasurfaces with silicon nitride nanopillars.

Contribution

It presents a novel meta-holography design capable of displaying smooth holographic videos with 228 frames and a frame rate of up to 9523 FPS, with over 70% efficiency.

Findings

Achieved 228 holographic frames with high efficiency.

Maximum frame rate of 9523 FPS.

Metasurface made of silicon nitride nanopillars.

Abstract

Hologram is an ideal method for naked eye three-dimensional (3D) display, and computer-generated holography (CGH) makes it possible to reconstruct virtual objects. However, the large pixel size of common CGH devices results in shortages in the applications of hologram, such as narrow field of view, twin images, multi-diffraction orders, et al. Meanwhile, metasurfaces consisted of subwavelength structures show great potential in controlling of light which is suitable for hologram design. There are many inspired works to achieve dynamic meta-hologram as we summary in this paper. And it can be concluded that there is still not such a research work of meta-holography with high efficiency and good display quality in the visible range that can show smooth holographic videos with a large frames number and high frame rate. In current work, we demonstrate a new design of meta-holography in visible range based on space division multiplexing metasurface which can achieve 228 different holographic frames and a very high frame rate (maximum of frame rate, 9523 FPS). Also, the metasurface consists of silicon nitride (SiNx) nanopillars with high efficiency (more than 70%). This method can not only satisfy the needs of holographic display but also be suitable for many different research fields, such as laser fabrication, photolithography, 3D forming of two-photon polymerization and optics information processing, et al.