Multipole plasmonic lattice solitons

被引：25
|
作者：
Kou, Yao [1 ]
Ye, Fangwei [1 ]
Chen, Xianfeng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, State Key Lab Fiber Opt Local Area Commun Network, Shanghai 200240, Peoples R China
来源：
PHYSICAL REVIEW A | 2011年 / 84卷 / 03期
基金：
中国国家自然科学基金;
关键词：
POLARITONS; GAIN;
D O I：
10.1103/PhysRevA.84.033855
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We theoretically demonstrate a variety of multipole plasmonic lattice solitons, including dipoles, quadrupoles, and necklaces, in two-dimensional metallic nanowire arrays with Kerr-type nonlinearities. Such solitons feature complex internal structures with an ultracompact mode size approaching or smaller than one wavelength. Their mode sizes and the stability characteristics are studied in detail within the framework of coupled mode theory. The conditions to form and stabilize these highly confined solitons are within the experimentally achievable range.
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页数：4
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