Laser-treated substrate with nanoparticles for surface-enhanced Raman scattering

被引：20
|
作者：
Lin, Cheng-Hsiang [1 ,2 ]
Jiang, Lan [3 ]
Zhou, Jun [4 ]
Xiao, Hai [5 ]
Chen, Shean-Jen [2 ]
Tsai, Hai-Lung [1 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
[2] Natl Cheng Kung Univ, Dept Engn Sci, Tainan 70101, Taiwan
[3] Beijing Inst Technol, Sch 3, Dept Mech & Automat Engn, Beijing 100081, Peoples R China
[4] Penn State Univ, Dept Mech Engn, Erie, PA 16563 USA
[5] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
来源：
OPTICS LETTERS | 2010年 / 35卷 / 07期
基金：
中国国家自然科学基金;
关键词：
15;
D O I：
10.1364/OL.35.000941
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A rapid and simple approach to fabricate a large area of nanostructured substrate for surface-enhanced Raman scattering (SERS) is reported. Gold nanoparticles ranging from 10 to 40 nm in diameter uniformly distributed on a silicon substrate were obtained by annealing the gold film precoated on the silicon substrate with UV nanosenond (ns) laser pulses. The gold nanoparticles were formed by surface tension of the melted gold layer heated by ns laser pulses. The enhancement factor of the SERS substrate for Rhodamine 6G at 632.8 nm excitation was measured to be higher than 10(5). The proposed technique provides the opportunity to equip a functional microchip with SERS capability of high sensitivity and chemical stability. (C) 2010 Optical Society of America
引用
收藏
页码：941 / 943
页数：3
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