期刊
OPTICS COMMUNICATIONS
卷 412, 期 -, 页码 41-48出版社
ELSEVIER
DOI: 10.1016/j.optcom.2017.11.072
关键词
Plasmon induced transparency; Graphene; Refractive index sensor; Figure of merit
类别
资金
- Natural Science Foundation of Shanxi Province [2016011038]
- Natural Science Foundation of China [61475198, 61775126]
The plasmon induced transparency (PIT) effect is investigated in a graphene-based waveguide, which is composed of a graphene bus waveguide side-coupled with a graphene strip directly and a graphene ring indirectly. Conventional numerical simulations based on finite element method (FEM) are used to study the transmission properties through optimizing the relevant parameters, and it is proved that the simulation results agree well with the analytical results. Then as one of the potential application branches of the PIT-like effect, the property of refractive index sensing with a higher sensitivity of 4160 nm/RIU is further studied. The result can help to deepen the understanding of PIT-like effect and nano sensor, and it would be also beneficial for the studies and applications of nanoscale graphene-based optical devices. (C) 2017 Elsevier B.V. All rights reserved.
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