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题名: Studies on the trapped-mode resonant properties in asymmetric terahertz metamaterial
作者: Chen, Wei; Zhou, Qingli; Li, Chenyu; Shi, Lan; Liu, Changxiang; Zhang, Cunlin
作者部门: 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.
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
会议录: AOPC 2017: OPTICAL STORAGE AND DISPLAY TECHNOLOGY
出版日期: 2017
收录类别: CPCI
页码: UNSP 104590D
ISSN号: 0277-786X
ISBN号: 978-1-5106-1400-0; 978-1-5106-1399-7
关键词: metamaterial ; terahertz ; electromagnetic resonance
英文摘要: 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.
语种: 英语
内容类型: 会议论文
URI标识: http://ir.nssc.ac.cn/handle/122/6227
Appears in Collections:空间技术部_会议论文

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