Terahertz transmission characteristics of double wire-grid polarizer on low-loss polyethylene substrate |
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| Authors: | D Tian X Dong Q Wen W Lei H Zhang |
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| Institution: | 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Microelectronic and Solid-State Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, People??s Republic of China
2. Belie College of Engineering and Technology, Lanzhou City University, Lanzhou, 730070, People??s Republic of China
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| Abstract: | We fabricated a double metallic wire-grid polarizer consisting of micrometer-pitch Cu grating on both sides of low-loss polyethylene substrate by simple electroplating and lithography micro-processing techniques. The performance of transmission was measured using a terahertz (THz) time domain spectroscopy system. The mixed polarization effects of surface plasmon polaritons in an azimuthally rotated grating were investigated. The polarization dependence of both amplitude and phase shift on frequency was demonstrated in the wide range of 0.1?C3 THz, and the extinction ratio is over 22 dB. |
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