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Studies on the trapped-mode resonant properties in asymmetric terahertz metamaterial
Chen, Wei; Zhou, Qingli; Li, Chenyu; Shi, Lan; Liu, Changxiang; Zhang, Cunlin; Zhou, QL (reprint author), Capital Normal Univ, Minist Educ, Key Lab Terahertz Optoelect, Beijing 100048, Peoples R China.; Zhou, QL (reprint author), Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Dept Phys, Beijing 100048, Peoples R China.
作者部门空间技术部
会议录名称AOPC 2017: OPTICAL STORAGE AND DISPLAY TECHNOLOGY
2017
页码UNSP 104590D
语种英语
ISSN号0277-786X
ISBN号978-1-5106-1400-0; 978-1-5106-1399-7
摘要Artificial metamaterials with appropriate design can exhibit unique electromagnetic phenomena which do not exist in natural materials. Some studies have shown that the method of breaking the geometric symmetry is capable to modify the electromagnetic responses. Here, we simulated and measured the transmission spectra of period arrays of subwavelength double-bar structure. The obtained results show the trapped-mode resonance with Fano-shaped spectrum can be induced in terahertz metamaterial with asymmetric double-bar structure, accompanied with a metamaterial induced transparency window between two resonant dips. And the bar spacing and lattice constant have great impact on the coupling strength concerned with the transparency position and spectral lineshape. We attribute there are two mechanisms together determine the coupling pattern between the bar array and the terahetz wave - the coupling between the bars of the same unit cell and the coupling between the bars of the neighbouring cells. Our obtained results indicate that such metamaterial with very simple configuration could also provide the potential application in the field of terahertz slow-light devices, amplitude and phase modulators.
关键词Metamaterial Terahertz Electromagnetic Resonance
会议名称Annual Conference of the Chinese-Society-for-Optical-Engineering (CSOE) on Applied Optics and Photonics China (AOPC) - Optical Storage and Display Technology
会议日期JUN 04-06, 2017
会议地点Beijing, PEOPLES R CHINA
收录类别CPCI
文献类型会议论文
条目标识符http://ir.nssc.ac.cn/handle/122/6227
专题空间技术部
通讯作者Zhou, QL (reprint author), Capital Normal Univ, Minist Educ, Key Lab Terahertz Optoelect, Beijing 100048, Peoples R China.; Zhou, QL (reprint author), Capital Normal Univ, Beijing Adv Innovat Ctr Imaging Technol, Dept Phys, Beijing 100048, Peoples R China.
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GB/T 7714
Chen, Wei,Zhou, Qingli,Li, Chenyu,et al. Studies on the trapped-mode resonant properties in asymmetric terahertz metamaterial[C],2017:UNSP 104590D.
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