Optoelectronics Letters, Volume. 15, Issue 3, 174(2019)

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

Wei XU1... Hai-yang GUO1, Xiu-han LI1,*, Dong-dong XU1, Guo-wu WEI1, Wen-qiong LIANG1, Ya-qi BI1 and Yong QIN2 |Show fewer author(s)
Author Affiliations
  • 1School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, China
  • 2State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
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    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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    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

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    Paper Information

    Received: Sep. 13, 2018

    Accepted: Oct. 12, 2018

    Published Online: Jan. 7, 2020

    The Author Email: Xiu-han LI (lixiuhan@bjtu.edu.cn)

    DOI:10.1007/s11801-019-8146-x

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