title: Visible-Frequency Dielectric Metasurfaces for Multiwavelength Achromatic and Highly Dispersive Holograms.
abstract: Dielectric metasurfaces built up with nanostructures of high refractive index represent a powerful platform for highly efficient flat optical devices due to their easy-tuning electromagnetic scattering properties and relatively high transmission efficiencies. Here we show visible-frequency silicon metasurfaces formed by three kinds of nanoblocks multiplexed in a subwavelength unit to constitute a metamolecule, which are capable of wavefront manipulation for red, green, and blue light simultaneously. Full phase control is achieved for each wavelength by independently changing the in-plane orientations of the corresponding nanoblocks to induce the required geometric phases. Achromatic and highly dispersive meta-holograms are fabricated to demonstrate the wavefront manipulation with high resolution. This technique could be viable for various practical holographic applications and flat achromatic devices.
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.affiliation: CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China.
authors.forename: Fengliang
authors.initials: F
authors.lastname: Dong
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.
authors.forename: Qi-Tong
authors.initials: QT
authors.lastname: Li
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Yang
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.
authors.forename: Chengwei
authors.initials: C
authors.lastname: Sun
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.|Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, China.
authors.forename: Jianjun
authors.initials: J
authors.lastname: Chen
authors.affiliation: CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Song
authors.affiliation: CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China.
authors.forename: Lihua
authors.initials: L
authors.lastname: Xu
authors.affiliation: CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, China.
authors.forename: Weiguo
authors.initials: W
authors.lastname: Chu
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.|Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, China.
authors.forename: Yun-Feng
authors.initials: YF
authors.lastname: Xiao
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.|Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, China.
authors.forename: Qihuang
authors.initials: Q
authors.lastname: Gong
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University and Collaborative Innovation Center of Quantum Matter , Beijing 100871, China.|Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
keywords: Dielectric metasurface; achromatic hologram; color hologram; highly dispersive hologram; multiwavelength; visible