A review of recent progress on directional metasurfaces: concept, design, and application. (22nd September 2022)

• Record Type: Journal Article
• Authors: Chen, Ke; Feng, Yijun
• Is Part Of: Journal of physics. Volume 55:Number 38(2022)
• Publication Date: 2022-09-22
• Subjects: directional metasurface -- chiral metamaterial -- asymmetric transmission -- Janus metasurface -- wavefront control; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/ac7e04
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Metasurfaces have provided a new paradigm to control electromagnetic waves by manipulating the spatially varying distribution of subwavelength artificial structures across the interface. Directional metasurfaces, a kind of metasurface with direction-dependent properties, possess different wave functionalities upon the incidence wave coming from opposite directions. The diversified wave-manipulation capabilities of directional metasurfaces show advantages of compactness, flatness, scalability, direction-dependence, etc, exhibiting promising potentials for a plethora of applications. Here, we present a review on the recent progress of directional metasurfaces, including the concept origin, the practical realization of meta-structures, the design method for direction-dependent wavefront tailoring, and the application aspects of directional metasurfaces. In the conclusion, we present possible further research directions in this field based on our own perspectives.