title: Bilayer-fish-scale ultrabroad terahertz bandpass filter.
abstract: A bilayer fish-scale metamaterial is experimentally demonstrated to function as a broad bandpass filter in the terahertz regime. The measured 3 dB-bandwidth for normal incidence is 1.13 THz with a high transmittance. The measured transmission spectrum is described well by a model based on an RLC circuit and multiple reflections. The filter is relatively insensitive to incidence angles up to 45°.
authors.affiliation: Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China.
authors.forename: Xueqian
authors.initials: X
authors.lastname: Zhang
authors.forename: Jianqiang
authors.initials: J
authors.lastname: Gu
authors.forename: Wei
authors.initials: W
authors.lastname: Cao
authors.forename: Jiaguang
authors.initials: J
authors.lastname: Han
authors.forename: Akhlesh
authors.initials: A
authors.lastname: Lakhtakia
authors.forename: Weili
authors.initials: W
authors.lastname: Zhang