Abnormal beam steering with kirigami reconfigurable metasurfaces

• DOI: 10.1038/s41467-025-56211-3
• Publication Date: 2025-02-15T10:41:31Z
• Authors: Guobang Jiang; Yingying Wang; Ziyu Zhang; Weikang Pan; Yizhen Chen; Yang Wang; Xiangzhong Chen; Enming Song; Gaoshan Huang; Qiong He; Shulin Sun; Jizhai Cui; Lei Zhou; Yongfeng Mei
• Keywords: Beam steering

Dynamically controlling electromagnetic waves at will is highly desired in many applications, but most previously realized mechanically reconfigurable metasurfaces are of restricted wave-control capabilities due to the limited tuning ranges structural properties (e.g., lattice constant or meta-atoms). Here, we present which both constants and local reflection phases constitutional meta-atoms can be synchronously controlled based on kirigami rotation transformation, thereby exhibiting extended thus capabilities. In particular, such exhibit continuously varied even re-formed reflection-phase profiles along with serving as ideal platforms achieve beam steering pre-designed manners. Using this concept, design fabricate two metasurfaces, working a flipper splitter for microwaves, respectively, experimentally characterize their wave-manipulation functionalities. Experimental results good agreement full-wave simulations. The proposed idea so general that it applied realize different materials/configurations high frequency regimes, other classical acoustic waves). Jiang et al. propose kirigami-based, metasurface utilizes simple uniform stretching unexpected dynamic functions. This unique approach modifies geometric phase anisotropic meta-atoms, degree freedom wave-tuning ranges.