光电子快报(英文版), 2019, 15 (3): 174, Published Online: Jan. 7, 2020  

Spectrum manipulation of a dual-stop-band metamaterial terahertz filter based on unit cell dimension changes

Author Affiliations
1 School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China
2 State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
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.

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]. 光电子快报(英文版), 2019, 15(3): 174.

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