A Loss-Controllable Absorbing Boundary Condition for Surface Plasmon Polaritons Propagating Onto Graphene

被引：12
|
作者：
Amanatiadis, Stamatios A. [1 ]
Kantartzis, Nikolaos V. [1 ]
Tsiboukis, Theodoros D. [1 ]
机构：
[1] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, Thessaloniki 54124, Greece
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 03期
关键词：
Finite-difference time-domain (FDTD) method; graphene; intraband conductivity; surface waves; terminating boundary schemes; FDTD;
D O I：
10.1109/TMAG.2014.2363109
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The development of a robust terminating boundary scheme for the transverse magnetic surface plasmon polaritons, supported on graphene, is introduced in this paper and incorporated in the finite-difference time-domain (FDTD) method. First, the 2-D FDTD algorithm is adjusted to efficiently model the graphene sheet as a surface conductivity, and the effect of the scattering rate-the main loss mechanism of graphene-on the surface wave propagation properties, is thoroughly studied. Then, the new scheme is optimally formulated via the prior scattering rate and combined with the FDTD algorithm. Its enhanced performance is successfully validated for several 2-D setups and a 3-D configuration with a surface wave traveling on a graphene microribbon waveguide.
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页数：4
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