期刊
PLASMONICS
卷 11, 期 3, 页码 703-711出版社
SPRINGER
DOI: 10.1007/s11468-015-0095-z
关键词
Graphene; Cylindrical hybrid waveguide; Mid-infrared; Surface plasmon mode
资金
- National Natural Science Foundation of China [61505052, 61176116, 11074069]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120161130003]
- Hunan Provincial Innovation Foundation for Postgraduate [CX2015B068]
A graphene-based cylindrical hybrid surface plasmon polariton waveguide, composed of a silicon nanowire core surrounded by a silica layer and then a graphene layer, is investigated using the finite-difference time-domain method. The analytical solutions and the numerical simulation show that an ultra-small mode area and a large propagation length can be achieved with this waveguide. Utilizing the perturbation theory of coupled mode, we demonstrate that the six lowest-order coupling modes originate from the coupling of the three lowest-order single-waveguide modes, and the m = 1 order yy-coupling mode possesses the maximum coupling length and the minimum crosstalk. This waveguide can be used for photonic integrated circuits in the mid-infrared range.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据