Reconfigurable Terahertz Metamaterial Using Split-Ring Meta-Atoms with Multifunctional Electromagnetic Characteristics

被引：12
作者：
Liao, Yuhang [1 ]
Lin, Yu-Sheng [1 ]
机构：
[1] Sun Yat Sen Univ, Sch Elect & Informat Technol, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 15期
关键词：
metamaterial; terahertz; optical switching; electromagnetically induced transparency; resonator; PERMEABILITY; FILTER;
D O I：
10.3390/app10155267
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We propose a reconfigurable terahertz (THz) metamaterial (RTM) to investigate its multifunctional electromagnetic characteristics by moving the meta-atoms of split-ring resonator (SRR) array. It shows the preferable and capable adjustability in the THz frequency range. The electromagnetic characteristics of the proposed RTM device are compared and analyzed by moving the meta-atoms in different polarized transverse magnetic (TM) and transverse electric (TE) modes. The symmetrical meta-atoms of RTM device exhibit a resonant tuning range of several tens of GHz and the asymmetrical meta-atoms of RTM device exhibit the better tunability. Therefore, an RTM device with reconfigurable meta-atoms possesses the resonance shifting, polarization switching, electromagnetically induced transparency (EIT) switching and multiband to single-band switching characteristics. This proposed RTM device provides the potential possibilities for the use of THz-wave optoelectronics with tunable resonance, EIT analog and tunable multiresonance characteristics.
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页数：9
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