Non‐Interleaved Four‐Channel Metasurfaces for Simultaneous Printing and Holographic Imaging

Simultaneous realization of printing and holographic images has become an emerging promising technology for optical storage anti-counterfeiting, which can significantly enhance the information capacity security system. Herein, a non-interleaved four-channel metasurface based on opposite-chirality-coexisted meta-atoms is proposed, simultaneously support four independent circular polarization (CP) channels, including two near-field channels far-field holography channels. In addition, due to chiral resonance properties, operation frequencies these also be flexibly designed achieve multiplexing frequency multiplexing. As proof concept, metasurfaces, one works at single other different frequencies, are validated numerically experimentally. It shown in results that with handedness stored or through flexible design metasurface. This provides new avenue future photonic devices highly integrated multiple functionalities, may have advantage diverse potential applications, such as advanced anti-counterfeits, data storage, image displays.