Optical spectroscopy of nanometric holes in thin gold films

被引：255
|
作者：
Prikulis, J [1 ]
Hanarp, P [1 ]
Olofsson, L [1 ]
Sutherland, D [1 ]
Kall, M [1 ]
机构：
[1] Chalmers Univ Technol, S-41296 Gothenburg, Sweden
来源：
NANO LETTERS | 2004年 / 4卷 / 06期
关键词：
D O I：
10.1021/nl0497171
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Elastic scattering measurements show that isolated nanometric holes in optically thin Au films exhibit a localized surface plasmon resonance in the red to near-infrared region. The hole plasmon red shifts with increasing hole diameter or increasing refractive index of the surrounding medium, analogous to a dipolar particle plasmon. A pronounced blue shift is observed when the distance between holes is decreased, indicating an enhanced coupling between holes mediated by surface plasmon polaritons of the intervening flat film surface.
引用
收藏
页码：1003 / 1007
页数：5
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