Independent Phase Control in Gap‐Tuned Metasurfaces for Dual‐Function Switching

• Published in: Laser & photonics reviews Vol. 18; no. 10
• Main Authors: Liao, Yi, Chen, Kaiji, Su, Xiaoqiang, Xu, Quan, Niu, Li, Wu, Tong, Zhang, Huifang, Gu, Jianqiang, Zhang, Xueqian
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.10.2024
• Subjects: Angular momentum; Circular polarization; Control equipment; Controllability; dual‐function switching; dynamic phase; gap‐tuned metasurface; independent phase control; Metasurfaces; Pancharatnam–Berry phase; Phase control; Switching (polarity); Wave front control; Wave fronts

Seeking new ways to actively control the phase using metasurfaces has gained significant attention in recent years, which is the key to achieve controllable wavefronts under external stimuli. Among various active phase control mechanisms, a mechanical method based on gap tuning, termed as gap‐tuned...