Studies on the trapped-mode resonant properties in asymmetric terahertz metamaterial

	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.
	2017
会议日期	JUN 04-06, 2017
会议地点	Beijing, PEOPLES R CHINA
关键词	Metamaterial Terahertz Electromagnetic Resonance
页码	UNSP 104590D
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.
会议录	AOPC 2017: OPTICAL STORAGE AND DISPLAY TECHNOLOGY
语种	英语
ISSN号	0277-786X
ISBN号	978-1-5106-1400-0; 978-1-5106-1399-7
内容类型	会议论文
源URL	[http://ir.nssc.ac.cn/handle/122/6227]
专题	国家空间科学中心_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.
推荐引用方式 GB/T 7714	Chen, Wei,Zhou, Qingli,Li, Chenyu,et al. Studies on the trapped-mode resonant properties in asymmetric terahertz metamaterial[C]. 见:. Beijing, PEOPLES R CHINA. JUN 04-06, 2017.