Selective excitation of resonances in gammadion metamaterials for terahertz wave manipulation
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- 作者：DaCheng Wang ; Qin Huang ; ChengWei Qiu…
- 关键词：terahertz ; gammadion metamaterials ; transmission
- 刊名：SCIENCE CHINA Physics, Mechanics & Astronomy
- 出版年：2015
- 出版时间：August 2015
- 年：2015
- 卷：58
- 期：8
- 全文大小：846 KB
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Qin Huang (1)
ChengWei Qiu (1)
MingHui Hong (1)
1. Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117581, Singapore - 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Chinese Library of Science
Mechanics, Fluids and Thermodynamics
Physics - 出版者：Science China Press, co-published with Springer
- ISSN：1869-1927
文摘
A gammadion terahertz (THz) metamaterial embedded with a pair of splits is experimentally investigated. By introducing the pair of splits at different arms, the transmitted amplitude at the resonance frequency can be manipulated from 61% to 24%. Broadband static resonance tunability from 1.11 to 1.51 THz is also demonstrated via varying the relative split positions at certain arms. The amplitude change and static resonance tunability are attributed to the introduced split pairs, which enable selective excitation of different resonance modes in the gammadion metamaterials. This work promises a new approach to design THz functional devices.