Metasurface Holographic Imaging Based on Three-Nanopores

Holographic imaging is a technique to record the amplitude and phase information of the reflected and transmitted light waves of an object by using the diffraction principle, to further reproduce the real three-dimensional image of an object. Because of its outstanding performance in information storage, it has attracted wide attention. Due to its excellent design flexibility, metasurface can flexibly control electromagnetic waves' phase, amplitude, wavelength, and polarization by designing its geometric parameters or arrangement. The research directions of holographic metasurface mainly include improving the image quality, energy utilization efficiency, and light fractional wave condition. In this paper, the imaging principle of the holographic metasurface is first introduced. A composite metasurface composed of three elliptic nanomoles is designed, wavelength multiplexing metasurface is simulated by an electromagnetic field, and holographic reproduction is realized. Finally, the quality of the imaging results was evaluated and optimized.