Controlling Plasmonic Wave Packets in Silver Nanowires

被引：37

作者：

Cao, Lina ^{[1
,2
,3
]}

Nome, Rene A. ^{[2
,3
]}

Montgomery, Jason M. ^{[1
]}

Gray, Stephen K. ^{[1
]}

Scherer, Norbert F. ^{[1
,2
,3
]}

机构：

[1] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA

[2] Univ Chicago, Dept Chem, Chicago, IL 60637 USA

[3] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 09期

关键词：

Nanophotonics; surface plasmons; nanowires; wave packet; control;

D O I：

10.1021/nl101285t

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Three-dimensional finite-difference time-domain simulations were performed to explore the excitation of surface plasmon resonances in long silver (Ag) nanowires. In particular, we show that it is possible to generate plasmonic wave packets that can propagate along the nanowire by exciting superpositions of surface plasmon resonances. By using an appropriately chirped pulse, it is possible to transiently achieve localization of the excitation at the distal end of the nanowire. Such designed coherent superpositions will allow realizing spatiotemporal control of plasmonic excitations for enhancing nonlinear responses in plasmonic "circuits".

引用

页码：3389 / 3394

页数：6

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