Origami Metawall: Mechanically Controlled Absorption and Deflection of Light

Advanced Science

卷:6

Xiao Lin¹  Yihao Yang¹  Min Li²  Liqiao Jing²  Hongsheng Chen²  Lian Shen²  Bin Zheng²  Zuojia Wang³  Su Xu⁴ 

[1] Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore;

[2] Interdisciplinary Center for Quantum Information State Key Laboratory of Modern Optical Instrumentation College of Information Science and Electronic Engineering Zhejiang University Hangzhou 310027 China;

[3] School of Information Science and Engineering Shandong University Qingdao 266237 China;

[4] State Key Laboratory of Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 China;

关键词: metamaterials;    optical transition;    origami;    reconfigurable;   

DOI  :  10.1002/advs.201901434

来源: DOAJ

【 摘 要 】

Abstract Metamaterials/metasurfaces, which have subwavelength resonating unit cells (i.e., meta‐atoms), can enable unprecedented control over the flow of light. Despite their significant progress, achieving dynamical control of both energy and momentum of light remains a challenge. Here, a mechanically tunable metawall capable of either absorbing light energy or modulating light momentum, by incorporating the magnetic meta‐atoms into a 3D printed origami grating, is theoretically designed and experimentally realized. Through mechanical stretching or compressing of the Miura‐ori pattern, the function of metawall can transit from an absorber, a mirror, to a negative reflector. Particularly, the continuously geometric deformation of the Miura‐ori lattice is a promising approach to compensate the angular dispersion in gradient metasurfaces. Considering the prominent mechanical properties and strong deformation abilities of origami structures, the findings may open an alternative avenue toward lightweight and deployable metadevices with diversified and continuously alterable electromagnetic properties.

【 授权许可】

Unknown