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

Autor: Yipeng Qin, Fengqi Zhou, Zhimin Liu, Xiao Zhang, Shanshan Zhuo, Xin Luo, Cheng Ji, Guangxin Yang, Zizhuo Zhou, Liwen Sun, Ting Liu
Rok vydání: 2022
Předmět:
Zdroj: Journal of the Optical Society of America. A, Optics, image science, and vision. 39(3)
ISSN: 1520-8532
Popis: 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.
Databáze: OpenAIRE