Multifunctional Metasurface: Coplanar Embedded Design for Metalens and Nanoprinted Display

Higher integration, smaller size, and better performance are the trends of device development. Metasurfaces exhibit the versatile manipulation capabilities on electromagnetic fields and have provided a powerful tool to build compact electromagnetic devices with various complex functions. In this work, we develop one branch of multifunctional metasurface device that not only affects the transmission but also controls the reflected light as well. A coplanar embedded design for the purpose of the metalens and displaying feature, has been specifically investigated, that is, dielectric metalenses embedded within nanorod printed pictures. By tailoring the freedom of polarizations, we show that an animation display can be obtained utilizing a high-quality transmission metalens. The picture can be freely engineered and its influence to the metalens could be effectively controlled. A random element distribution method based on coherent transfer function is introduced to minimize the diffraction effect of the reflection patterns. The simulation results indicate the possibility of interleaving the metalens with a classic display panel in order to enhance the dual performance. This work vastly exposes the advantages of metasurface, which will be helpful in the next exploration of new compact optical devices with integrated multiple functionalities.