Triple plasmon-induced transparency and dynamically tunable electro-optics switch based on a multilayer patterned graphene metamaterial

• DOI: 10.1364/josaa.443371
• Publication Date: 2022-01-21T19:30:17Z
• Authors: Yipeng Qin; Fengqi Zhou; Zhimin Liu; Xiao Zhang; Shanshan Zhuo; Xin Luo; Cheng Ji; Guangxin Yang; Zizhuo Zhou; Liwen Sun; Ting Liu
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

A terahertz-band metamaterial composed of multilayer patterned graphene is proposed and triple plasmon-induced transparency is excited by coupling three bright modes with one dark mode. The Lorentz curve calculated by the coupled-mode theory agrees well with the finite-difference time-domain results. Dynamic tuning is investigated by changing the Fermi level. Multimode electro-optics switching can be designed and achieved, and the amplitude modulations of four resonance frequencies are 94.3%, 92.8%, 90.7%, and 93%, respectively, which can realize the design of synchronous and asynchronous electro-optics switches. It is hoped that these results can provide theoretical support and guidance for the future design and application of photonic and optoelectronic devices.