Polarization-dependent spatial channel multiplexing dynamic hologram in the visible band

In this work, we propose dynamic holography based on metasurfaces combining spatial channel multiplexing and polarization multiplexing. In this design, spatial channels can provide up to 3(N) holographic frames, which not only increase the possibility of dynamic control but also increase the privacy of the holographic display. This design is also sensitive to polarization, so it further expands the spatial channel capacity. For the left and right circular polarization incident light, there are different dynamic pixel schemes. Therefore, this approach holds promise in the holographic display, optical storage, optics communication, optical encryption, and information processing. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Automated summary

The proposed dynamic holography based on metasurfaces combines spatial channel multiplexing and polarization multiplexing, providing multiple holographic frames and sensitivity to polarization, making it suitable for various optical applications.