A kind of graphene film metamaterial for terahertz absorbers  

作　　者：高润梅 续宗成 丁春峰 姚建铨 

机构地区：[1]Institute of Laser and Optoelectronics,College of Precision Instrument and Optoelectronics Engineering,Tianjin University [2]College of Science,Guilin University of Technology

出　　处：《Optoelectronics Letters》2016年第1期43-46,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61205096 and 11364010);the Science Foundation of Education Department of Guangxi in China(No.200911LX17)

摘　　要：A kind of functional graphene thin film metamaterial on a metal-plane separated by a thick dielectric layer is designed for terahertz(THz) absorbers.We investigate the properties of the graphene metamaterial with different interlayers in the 0–3 THz range.The simulation results show that the absorption rate reaches up to 99.9% at the frequency of 1.917 THz.Changing the period to 80 μm×18 μm can get a narrow-band high quality factor(Q) absorber.We present a novel theoretical interpretation based on the standing wave field theory,which shows that the coherent superposition of incident and reflection rays produces standing waves,and the field energy is localized inside the thick spacers and dissipates through the metal-planes.

关 键 词：Elastic waves METAMATERIALS 

分 类 号：TQ127.11[化学工程—无机化工] TB383.2[一般工业技术—材料科学与工程]