Acta Optica Sinica, Volume. 38, Issue 2, 0223002(2018)
Analysis of Modes in Graphene-Coated Parallel Dielectric Nanowires
Mode properties of parallel dielectric nanowires coated with graphene are analyzed by using the multipole method. The effects of the operating frequency, the geometrical parameters of the dielectric nanowires, and the Fermi energy of the graphene on the effective refractive index and the propagation length are investigated in detail. The results show that mode properties can be easily adjusted by changing the operating frequency and the Fermi energy of graphene. In addition, the radius or the spacing can be used to adjust mode properties within the range of 50 nm. However, the effects of the two parameters decrease gradually when their values continue to increase. The comparison shows that the analytical results of the multipole method are in good agreement with the numerical results of the finite element method.
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Yanling Peng, Wenrui Xue, Zhuangzhi Wei, Changyong Li. Analysis of Modes in Graphene-Coated Parallel Dielectric Nanowires[J]. Acta Optica Sinica, 2018, 38(2): 0223002
Category: Optical Devices
Received: Jun. 30, 2017
Accepted: --
Published Online: Aug. 30, 2018
The Author Email: Xue Wenrui (wrxue@sxu.edu.cn)