Anomalous reflection from metasurfaces with gradient phase distribution below 2π. (21st June 2016)

• Record Type: Journal Article
• Authors: Ho, You Zhe; Cheng, Bo Han; Hsu, Wei-Lun; Wang, Chih-Ming; Tsai, Din Ping
• Is Part Of: Applied physics express. Volume 9:Number 7(2016:Jul.)
• Publication Date: 2016-06-21
• Subjects: Physics -- Periodicals; Technology -- Periodicals; 621.05
• DOI: 10.7567/APEX.9.072502
• Languages: English
• ISSNs: 1882-0778

Abstract

Abstract: Metasurfaces are artificial structures that have been demonstrated to possess the ability to manipulate light within a subwavelength spatial region. Here, we explore another unraised functionality of the energy redistribution of a metasurface by tuning the phase difference over a supercell. We also propose a practical nanorod-based design to achieve an anomalous steering reflection using the finite element method simulation. The proposed phenomena have potential applications in ultracompact nanophotonic systems and high-efficiency flat devices.