title: Broadband terahertz wave deflection based on C-shape complex metamaterials with phase discontinuities.
abstract: A broadband terahertz wave deflector based on metasurface induced phase discontinuities is reported. Various frequency components ranging from 0.43 to 1.0 THz with polarization orthogonal to the incidence are deflected into a broad range of angles from 25° to 84°. A Fresnel zone plate consequently developed from the beam deflector is capable of focusing a broadband terahertz radiation.
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Xueqian
authors.initials: X
authors.lastname: Zhang
authors.forename: Zhen
authors.initials: Z
authors.lastname: Tian
authors.forename: Weisheng
authors.initials: W
authors.lastname: Yue
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Gu
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhang
authors.forename: Jiaguang
authors.initials: J
authors.lastname: Han
authors.forename: Weili
authors.initials: W
authors.lastname: Zhang
keywords: broadband; phase discontinuities; terahertz