Kirigami Metamaterials for Reconfigurable Toroidal Circular Dichroism
Abstract
The ancient paper craft of kirigami has recently emerged as a potential tool for the design of functional materials. Inspired by the kirigami concept, we propose a class of kirigami-based metamaterials whose electromagnetic functionalities can be switched between nonchiral and chiral states by stretching the predesigned split-ring resonator array. Single-band, dual-band and broadband circular polarizers with reconfigurable performance are experimentally demonstrated with maximum circular dichroisms of 0.88, 0.94 and 0.92, respectively. The underlying mechanism is explained and calculated via detailed analysis of the excited multipoles, including the electric, magnetic, and toroidal dipoles and quadrupole. Our approach enables tailoring the electromagnetic functionalities in kirigami patterns and provides an alternate avenue for reconfigurable optical metadevices with exceptional mechanical properties.
Keywords
Cite
@article{arxiv.1808.10588,
title = {Kirigami Metamaterials for Reconfigurable Toroidal Circular Dichroism},
author = {Liqiao Jing and Zuojia Wang and Bin Zheng and Huaping Wang and Yihao Yang and Lian Shen and Wenyan Yin and Erping Li and Hongsheng Chen},
journal= {arXiv preprint arXiv:1808.10588},
year = {2018}
}