Plasmonic Nanoantennae with Ultrasmall Gaps and Their Application in Surface Enhanced Raman Scattering

被引：11
|
作者：
Lv, Jiangtao [1 ]
Gu, Qiongchan [1 ]
Jiang, Xiaoxiao [1 ]
Yang, Linjuan [1 ]
Li, Zhigang [1 ]
Ma, Zhenhe [1 ]
Si, Guangyuan [1 ]
机构：
[1] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Peoples R China
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2015年 / 7卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Nanoparticles; Plasmonic; Ultrasmall Gaps; PHOTORESPONSIVE LIQUID-CRYSTALS; SILVER NANOROD ARRAYS; COLOR FILTERS; LITHOGRAPHY; FABRICATION; RESONATORS;
D O I：
10.1166/nnl.2015.2045
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Using direct focused ion beam milling lithography, we show fabrication of plasmonic nanoantennae with ultrasmall inter-particle separations and different outlines. Ultrasmall gap widths are achieved by appropriately aligning coaxial apertures during the milling process. The absorbance of the fabricated nanoantennae is experimentally characterized. As an important application, surface enhanced Raman scattering is demonstrated since such densely packed plasmonic nanoantennae with ultrasmall gaps can enable strong field enhancement, leading to important potential in nanophotonics and integrated optics.
引用
收藏
页码：917 / 919
页数：3
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