14 May 2013, 23 Oct 2013, 15 Nov 2013 | Lingling Huang, Xianzhong Chen, Holger Mühlenbernd, Hao Zhang, Shumei Chen, Benfeng Bai, Qiaofeng Tan, Guofan Jin, Kok-Wai Cheah, Cheng-Wei Qiu, Jensen Li, Thomas Zentgraf, Shuang Zhang
The article presents a novel approach to three-dimensional (3D) optical holography using a plasmonic metasurface. Metasurfaces, which consist of a monolayer of photonic artificial atoms, have shown promise in shaping wave fronts of light by introducing abrupt interfacial phase discontinuities. The authors demonstrate 3D holography by using metasurfaces made of subwavelength metallic nanorods with spatially varying orientations. The phase discontinuity occurs when the helicity of incident circularly polarized light is reversed, allowing for continuous phase control in each subwavelength unit cell. This approach enables high-resolution on-axis 3D holograms with a wide field of view and eliminates the undesired effect of multiple diffraction orders typically associated with holography. The metasurface design is based on the geometric berry phase, resulting in a dispersionless phase profile that allows for broadband operation. The experimental setup and results for 3D holography of a solid jet model and a hollow helix pattern are presented, showing the reconstruction of 3D images at different wavelengths and viewing angles. The metasurface approach offers advantages over conventional methods in terms of subwavelength pixel sizes and continuously controllable phase profiles, making it suitable for applications such as high-resolution holographic data storage and optical information processing.The article presents a novel approach to three-dimensional (3D) optical holography using a plasmonic metasurface. Metasurfaces, which consist of a monolayer of photonic artificial atoms, have shown promise in shaping wave fronts of light by introducing abrupt interfacial phase discontinuities. The authors demonstrate 3D holography by using metasurfaces made of subwavelength metallic nanorods with spatially varying orientations. The phase discontinuity occurs when the helicity of incident circularly polarized light is reversed, allowing for continuous phase control in each subwavelength unit cell. This approach enables high-resolution on-axis 3D holograms with a wide field of view and eliminates the undesired effect of multiple diffraction orders typically associated with holography. The metasurface design is based on the geometric berry phase, resulting in a dispersionless phase profile that allows for broadband operation. The experimental setup and results for 3D holography of a solid jet model and a hollow helix pattern are presented, showing the reconstruction of 3D images at different wavelengths and viewing angles. The metasurface approach offers advantages over conventional methods in terms of subwavelength pixel sizes and continuously controllable phase profiles, making it suitable for applications such as high-resolution holographic data storage and optical information processing.