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Origami-Based Reconfigurable Metamaterials for Tunable Chirality

TitleOrigami-Based Reconfigurable Metamaterials for Tunable Chirality
Publication TypeJournal Article
Year of Publication2017
AuthorsWang, ZJ, Jing, LQ, Yao, K, Yang, YH, Zheng, B, Soukoulis, CM, Chen, HS, Liu, YM
JournalAdvanced Materials
Date Published07
Type of ArticleArticle
ISBN Number0935-9648
Accession NumberWOS:000405410700013
Keywordschemistry, geometry, light, Materials Science, metamaterials, metasurfaces, negative-index, origami, phase, physics, reconfigurable materials, refraction, Technology - Other Topics

Origami is the art of folding two-dimensional (2D) materials, such as a flat sheet of paper, into complex and elaborate three-dimensional (3D) objects. This study reports origami-based metamaterials whose electromagnetic responses are dynamically controllable via switching the folding state of Miura-ori split-ring resonators. The deformation of the Miura-ori unit along the third dimension induces net electric and magnetic dipoles of split-ring resonators parallel or anti-parallel to each other, leading to the strong chiral responses. Circular dichroism as high as 0.6 is experimentally observed while the chirality switching is realized by controlling the deformation direction and kinematics. In addition, the relative density of the origami metamaterials can be dramatically reduced to only 2% of that of the unfolded structure. These results open a new avenue toward lightweight, reconfigurable, and deployable metadevices with simultaneously customized electromagnetic and mechanical properties.

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