Multicolor and 3D Holography Generated by Inverse‐Designed Single‐Cell Metasurfaces

Metasurface-generated holography has emerged as a promising route for fully reproducing vivid scenes by manipulating the optical properties of light using ultra-compact devices. However, achieving multiple holographic images using a single metasurface is still difficult due to the capacity limit of a single meta-atom. In this work, an inverse design method based on gradient-descent optimization is presented to encode multiple pieces of holographic information into a single metasurface. The proposed method allows the inverse design of single-cell metasurfaces without the need for complex meta-atom design strategies, facilitating high-throughput fabrication using broadband low-loss materials. By exploiting the…

• PU
  Pohang University of Science and Technology
• NR
  National Research Foundation of Korea

  Awards: NRF‐2022M3H4A1A02074314, CAMM‐2019M3A6B3030637, NRF‐2021R1A6A3A13038935, NRF‐2019R1A5A8080290, NRF‐2022M3C1A3081312, NRF‐2022R1C1C2009430, NRF‐2021M3H4A1A04086554, NRF‐2019R1A2C3003129
• CM
  Chung Mong-Koo Foundation