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Received: Jul. 8, 2020
Accepted: Sep. 4, 2020
Posted: Nov. 26, 2020
Published Online: Dec. 18, 2020
The Author Email: Xin Zheng (zhengxin@nudt.edu.cn)
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Hao Sun, Jie Yang, Hengzhu Liu, Dan Wu, Xin Zheng. Process-controllable modulation of plasmon-induced transparency in terahertz metamaterials[J]. Chinese Optics Letters, 2021, 19(1): 013602
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Nanophotonics, Metamaterials, and Plasmonics
Chinese Optics Letters, Vol. 19, Issue 1, 013602 (2021)
Process-controllable modulation of plasmon-induced transparency in terahertz metamaterials 
Hao Sun1, Jie Yang2, Hengzhu Liu1, Dan Wu3, and Xin Zheng2,*
Author Affiliations
- 1College of Computer, National University of Defense Technology, Changsha 410073, China
- 2National Innovation Institute of Defense Technology, Beijing 100010, China
- 3Graduate School, National University of Defense Technology, Changsha 410073, China
Abstract
Recently reported plasmon-induced transparency (PIT) in metamaterials endows the optical structures in classical systems with quantum optical effects. In particular, the nonreconfigurable nature in metamaterials makes multifunctional applications of PIT effects in terahertz communications and optical networks remain a great challenge. Here, we present an ultrafast process-selectable modulation of the PIT effect. By incorporating silicon islands into diatomic metamaterials, the PIT effect is modulated reversely, depending on the vertical and horizontal configurations, with giant modulation depths as high as 129% and 109%. Accompanied by the enormous switching of the transparent window, remarkable slow light effect occurs.
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