title: Highly anisotropic metasurface: a polarized beam splitter and hologram.
abstract: Two-dimensional metasurface structures have recently been proposed to reduce the challenges of fabrication of traditional plasmonic metamaterials. However, complex designs and sophisticated fabrication procedures are still required. Here, we present a unique one-dimensional (1-D) metasurface based on bilayered metallic nanowire gratings, which behaves as an ideal polarized beam splitter, producing strong negative reflection for transverse-magnetic (TM) light and efficient reflection for transverse-electric (TE) light. The large anisotropy resulting from this TE-metal-like/TM-dielectric-like feature can be explained by the dispersion curve based on the Bloch theory of periodic metal-insulator-metal waveguides. The results indicate that this photon manipulation mechanism is fundamentally different from those previously proposed for 2-D or 3-D metastructures. Based on this new material platform, a novel form of metasurface holography is proposed and demonstrated, in which an image can only be reconstructed by using a TM light beam. By reducing the metamaterial structures to 1-D, our metasurface beam splitter exhibits the qualities of cost-efficient fabrication, robust performance, and high tunability, in addition to its applicability over a wide range of working wavelengths and incident angles. This development paves a foundation for metasurface structure designs towards practical metamaterial applications.
authors.affiliation: 1] Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China [2].
authors.forename: Jun
authors.initials: J
authors.lastname: Zheng
authors.affiliation: 1] National Engineering Laboratory for TFT-LCD Technology, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2].
authors.forename: Zhi-Cheng
authors.initials: ZC
authors.lastname: Ye
authors.affiliation: National Engineering Laboratory for TFT-LCD Technology, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Nan-Ling
authors.initials: NL
authors.lastname: Sun
authors.affiliation: Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.affiliation: 1] Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China [2] SUPA and Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK.
authors.forename: Zheng-Ming
authors.initials: ZM
authors.lastname: Sheng
authors.affiliation: 1] National Engineering Laboratory for TFT-LCD Technology, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China [2] Displays Institute, National Chiao Tung University, Hsinchu 300, Taiwan.
authors.forename: Han-Ping D
authors.initials: HP
authors.lastname: Shieh
authors.affiliation: Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang