光电工程, 2017, 44 (4): 461, 网络出版: 2017-07-10
A tunable terahertz metamaterial and its sensing performance
A tunable terahertz metamaterial and its sensing performance
terahertz metamaterial electromagnetically induced transparency tunability high Q factor sensing per-formance
摘要
Abstract
A novel electromagnetically induced transparency (EIT)-like metamaterial in terahertz domain is proposed. The metamaterial is composed by a single metal wire and a couple metal wires above it. A plane wave propagates along the perpendicular direction to the structure with its electronic field direction paralleled to the double metal wires. The structure’s transmission spectra are simulated by CST Microwave Studio. In the simulation, the solver is chosen to be frequency domain solver while the boundary conditions are set as unit cell in x-y plane, and open (add space) in z-direction. The metal strips are set to be copper with its conductivity of 5.88×109 S/m and its thickness Δh=0.3 μm. The substrate material is quartz with its permittivity of 3.75 and thickness h=50 μm.
Yuzhu Tang, Wenying Ma, Yaohua Wei, WeiMin Wang. A tunable terahertz metamaterial and its sensing performance[J]. 光电工程, 2017, 44(4): 461. Yuzhu Tang, Wenying Ma, Yaohua Wei, WeiMin Wang. A tunable terahertz metamaterial and its sensing performance[J]. Opto-Electronic Engineering, 2017, 44(4): 461.