Point-Source Geometric Metasurface Holography

• DOI: 10.1021/acs.nanolett.0c04485
• Publication Date: 2020-12-28T14:36:39Z
• Authors: Yanjun Bao; Jiahao Yan; Xianguang Yang; Cheng-Wei Qiu; Baojun Li
• Keywords: Pinhole (optics); Point source

Geometric metasurfaces have shown great potential in holography due to their straightforward geometric nature of phase control. The incident angles, spins, and wavelengths the light provide various degrees freedom multiplex metasurface holographic images, which, however, are usually interrelated hence challenging be fully decoupled. Here, we report a synergetic recipe break such seemingly inevitable interrelation by incorporating an effective point source (a pinhole), with which spin, wavelength, coordinate can decoupled meta-holograms. We experimentally demonstrate spin-decoupled, full-colored dynamic controlled position source. significance this work is not merely offer alternative approach limitations metasurface, but more importantly, it provides promising route for sources reality realize advanced functionalities meta-optics, as single-photon holography, fluorescence etc.