Double Wire-Grid Terahertz Polarizer on Low-Loss Polymer Substrates  

作　　者：田东斌 张怀武 赖伟恩 文歧业 宋远强 王治国 

机构地区：[1]State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronic and Solid-state Electronic, University of Electronic Science and Technology of China, Chengdu 610054 [2]Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054

出　　处：《Chinese Physics Letters》2010年第10期125-127,共3页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China under Grant No. 2007CB310407, the National Natural Science Foundation Grant No 50972023, and the International S＆T Cooperation Program of China under Grant No 2007DFR10250.

摘　　要：A double-wire-grid polarizer was fabricated on both sides of a low-loss polythene film by simple electroplating and photolithographic micro-processing techniques. The performances of the polarizer were measured using a terahertz time-domain spectrometer （THz-TDS）. The transmittance is more than 70% and below 2% in the parallel and perpendicular directions of the polarizer, respectively. The extinction ratio is better than 22 dB in the broad frequency range of 0.5–3 THz, which is higher than the conventional free-standing polarizer in the high frequency region.A double-wire-grid polarizer was fabricated on both sides of a low-loss polythene film by simple electroplating and photolithographic micro-processing techniques. The performances of the polarizer were measured using a terahertz time-domain spectrometer （THz-TDS）. The transmittance is more than 70% and below 2% in the parallel and perpendicular directions of the polarizer, respectively. The extinction ratio is better than 22 dB in the broad frequency range of 0.5–3 THz, which is higher than the conventional free-standing polarizer in the high frequency region.

分 类 号：TN949.192[电子电信—信号与信息处理] O434.3[电子电信—信息与通信工程]