Mutual conversion and asymmetric transmission of linearly polarized light in bilayered chiral metamaterial.
We propose a kind of planar chiral optical metamaterial consisting of two layers of connected I-shape resonators arranged by a twist angle of 90°. Numerical simulation results demonstrate that our scheme can realize a mutual polarization conversion and dual-band asymmetric transmission for linearly polarized waves in the optical regime. For the forward propagation, the x-to-y and y-to-x polarization conversions in the proposed bilayered metamaterial result from the concentric and eccentric C-shaped dimers, respectively. The current distributions of bilayered metamaterials at the resonant frequencies are presented to interpret the dual-band asymmetric transmission. The polarization conversion efficiency and resonant frequencies can be modified via parametric study.
Yiqun
Y
Xu
Quanchao
Q
Shi
Zheng
Z
Zhu
Jinhui
J
Shi
D003198:Computer Simulation; D004574:Electromagnetic Fields; D008027:Light; D008420:Manufactured Materials / Q000032:analysis*; D008962:Models, Theoretical; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation