title: Electromagnetic manifestation of chirality in layer-by-layer chiral metamaterials.
abstract: The three-dimensional (3D) and two-dimensional (2D) chiral metamaterials (CMMs) have been proved to exhibit circular dichroism and circular conversion dichroism, respectively. The layer-by-layer chiral metamaterials, as a category of 3D CMMs, are expected to show the same properties as bulk 3D structures (e.g. helices). However, in this paper, we demonstrated that the layer-by-layer CMMs exhibit circular dichroism and circular conversion dichroism simultaneously by using both theoretical and experimental methods. This work showed that asymmetric transmissions of circular polarizations can also be observed in layer-by-layer CMMs. Moreover, we provided some necessary requirements for the existing of asymmetric transmissions in layer-by-layer CMMs.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Wu
authors.forename: ZhenYu
authors.initials: Z
authors.lastname: Yang
authors.forename: YongZhi
authors.initials: Y
authors.lastname: Cheng
authors.forename: ZeQin
authors.initials: Z
authors.lastname: Lu
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
authors.forename: RongZhou
authors.initials: R
authors.lastname: Gong
authors.forename: XiuHua
authors.initials: X
authors.lastname: Yuan
authors.forename: Yu
authors.initials: Y
authors.lastname: Zheng
authors.forename: JiAn
authors.initials: J
authors.lastname: Duan