| XU Wei,GUO Hai-yang,LI Xiu-han,XU Dong-dong,WEI Guo-wu,LIANG Wen-qiong,BI Ya-qi,QIN Yong.Spectrum manipulation of a dual-stop-band metamaterial terahertz filter based on unit cell dimension changes[J].Optoelectronics Letters,2019,15(3):174-178 |
| Spectrum manipulation of a dual-stop-band metamaterial terahertz filter based on unit cell dimension changes |
| Author Name | Affiliation | | XU Wei | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | GUO Hai-yang | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | LI Xiu-han | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | XU Dong-dong | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | WEI Guo-wu | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | LIANG Wen-qiong | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | BI Ya-qi | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China | | QIN Yong | |
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| Abstract: |
| We numerically and experimentally proposed a dual-stop-band terahertz filter based on standard microelectronic fabrication method. The stop bands locate at 0.32 THz and 1.02 THz with 3 dB bandwidths of 0.26 THz and 0.55 THz, respectively. The resonance characteristics of the proposed device were discussed with the help of surface current maps and field density maps extracted from computer simulation software to better understand the working principle of the proposed device. On top of that, a total of seven devices with different dimensions were fabricated to fully discuss the dimension effects on the resonant frequency shift and bandwidth changes. This fabrication process is applicable for related integrated metamaterial devices and provides essential experiment evidences for effective ways of manipulating the transmission spectrum of the proposed filter. |
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