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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.
Department空间技术部
Source PublicationAOPC 2017: OPTICAL STORAGE AND DISPLAY TECHNOLOGY
2017
PagesUNSP 104590D
Language英语
ISSN0277-786X
ISBN978-1-5106-1400-0; 978-1-5106-1399-7
AbstractArtificial 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.
KeywordMetamaterial Terahertz Electromagnetic Resonance
Conference NameAnnual Conference of the Chinese-Society-for-Optical-Engineering (CSOE) on Applied Optics and Photonics China (AOPC) - Optical Storage and Display Technology
Conference DateJUN 04-06, 2017
Conference PlaceBeijing, PEOPLES R CHINA
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6227
Collection空间技术部
Corresponding AuthorZhou, 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.
Recommended Citation
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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