Tailoring of high-Q-factor surface plasmon modes on silver microtubes

被引：19
|
作者：
Rottler, Andreas [1 ]
Broell, Markus
Schwaiger, Stephan
Heitmann, Detlef
Mendach, Stefan
机构：
[1] Univ Hamburg, Inst Angew Phys, D-20355 Hamburg, Germany
来源：
OPTICS LETTERS | 2011年 / 36卷 / 07期
关键词：
D O I：
10.1364/OL.36.001240
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the excitation of surface plasmon polaritons on silver tubes with finite-difference time-domain simulations. These surface plasmon polaritons exhibit azimuthal whispering gallery modes with quality factors in the hundreds. We show that the high quality factors arise from the coupling of the surface plasmon modes to photonic modes inside the tube. We examine the influence of a gain material on the quality factors and find that for material data of rhodamine 6G, the quality factors are enhanced significantly up to values of 3000. (C) 2011 Optical Society of America
引用
收藏
页码：1240 / 1242
页数：3
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