Mode Conversion of the Edge Modes in the Graphene Double-Ribbon Bend
1
Department Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China
2
Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology, Jiangnan University, Wuxi 214122, China
*
Author to whom correspondence should be addressed.
Materials 2019, 12(23), 4008; https://doi.org/10.3390/ma12234008
Received: 5 October 2019 / Revised: 22 November 2019 / Accepted: 24 November 2019 / Published: 3 December 2019
(This article belongs to the Section Optics and Photonics)
In this paper, a new kind of graphene double-ribbon bend structure, which can support two edge graphene surface plasmons (EGSPs) modes, is proposed. In this double-ribbon bend, one edge mode can be partly converted into another one. We attribute the mode conversion mechanism to the interference between the two edge plasmonic modes. Based on the finite element method (FEM), we calculate the transmission and loss of EGSPs propagating along this graphene double-ribbon bend in the mid-infrared range under different parameters.
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Keywords:
surface plasmon polaritons; edge mode; graphene; mode conversion
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MDPI and ACS Style
Zhang, L.; Xue, B.; Wang, Y. Mode Conversion of the Edge Modes in the Graphene Double-Ribbon Bend. Materials 2019, 12, 4008.
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