Surface plasmon-polaritons on very thin metal tubes

被引：5
作者：
Liang, H. W. [1 ,2 ,3 ]
Ruan, S. C. [1 ,2 ,3 ]
Zhang, M. [1 ,2 ,3 ]
Su, H. [1 ,2 ,3 ]
Li, I. L. [1 ,2 ,3 ]
机构：
[1] Shenzhen Univ, Coll Elect Sci & Technol, Shenzhen 518060, Peoples R China
[2] Shenzhen Univ, Shenzhen Key Lab Laser Engn, Shenzhen 518060, Peoples R China
[3] Shenzhen Univ, Key Lab Adv Opt Precis Mfg Technol, Guangdong Higher Educ Inst, Shenzhen 518060, Peoples R China
来源：
LASER PHYSICS | 2013年 / 23卷 / 12期
关键词：
GAP WAVE-GUIDES; FILMS; PROPAGATION; WEDGES;
D O I：
10.1088/1054-660X/23/12/125001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A thin metal tube is proposed to guide surface plasmon-polaritons (SPPs). We derive the dispersion equation of the SPPs, and then solve the equation as a function of the tube thickness. It is indicated that both long-range (LR) SPPs and short-range (SR) SPPs can be guided by the metal tube. For the LR-SPPs the loss coefficient goes to zero as the thickness of the tube decreases, thus the propagation distance can be much longer than that of the SPPs propagating on a metal wire. For the SR-SPPs, compared with the SPPs on the wire, the mode distribution is much sharper.
引用
收藏
页数：4
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