标题：Broadband chiral metamirrors
作者：Jing, L. ;Wang, Z. ;Zheng, B. ;Wang, H. ;Yang, Y. ;Liu, Y. ;Chen, H.
作者机构：[Jing, L. ;Zheng, B. ;Yang, Y. ;Chen, H. ] Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou; 310027, China;[Liu, Y. ] De 更多
会议名称：19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
会议日期：11 September 2017 through 15 September 2017
来源：Proceedings of the 2017 19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
摘要：Chiral metamirrors can reflect one circularly polarized light without changing its handedness, while almost completely absorb the other, which would have many potential applications in engineering. In this paper, recent progresses of our group on the chiral metamirrors are reviewed. Firstly, we discuss the general method to design the chiral metamirrors under the framework of Jones calculus. The structural requirement of such chiral metamirrors is the breaking in both the n-fold rotational (n ≥ 2) symmetry and mirror symmetry. According to the general design methodology, we propose and design some chiral metamirrors that absorb only one circularly polarized light. Our design includes a bi-layer chiral metamirror in the mid-infrared region, a single-layer chiral metamirror in microwave and a broadband chiral metamirror. Our findings may provide an efficient approach to boost the working bandwidth of the chiral metamirror and a variety of applications, including molecular spectroscopy and polarization-sensitive detector. © 2017 IEEE.