Direct far-field observation of surface-plasmon propagation by photoinduced scattering

被引：11
|
作者：
Velinov, T [1 ]
Somekh, MG [1 ]
Liu, S [1 ]
机构：
[1] Univ Nottingham, Dept Elect & Elect Engn, Nottingham NG7 2RD, England
来源：
APPLIED PHYSICS LETTERS | 1999年 / 75卷 / 25期
关键词：
D O I：
10.1063/1.125490
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A tightly focused laser beam is shown to act as a scatterer of surface plasmons. The energy released into free space due to the scattering is collected by far-field optics. Scanning the laser beam over the plasmon field gives a map of their propagation. Evidence is given which shows that the surface-plasmon map gives much more detail of plasmon propagation and film structure than the photothermal image, which monitors the heat deposited during plasmon propagation. (C) 1999 American Institute of Physics. [S0003-6951(99)00751-2].
引用
收藏
页码：3908 / 3910
页数：3
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