Surface-enhanced Raman-scattering fiber probe fabricated by femtosecond laser

被引:48
|
作者
Lan, Xinwei [1 ]
Han, Yukun [2 ]
Wei, Tao [1 ]
Zhang, Yinan [1 ]
Jiang, Lan [3 ]
Tsai, Hai-Lung [2 ]
Xiao, Hai [1 ]
机构
[1] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
[2] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
[3] Beijing Inst Technol, Dept Mech & Automat Engn, Beijing 100081, Peoples R China
基金
中国国家自然科学基金;
关键词
SPECTROSCOPY; SENSORS;
D O I
10.1364/OL.34.002285
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report what we believe to be a new method to fabricate surface enhanced Raman scattering (SERS) fiber probe by direct femtosecond laser micromachining. Direct femtosecond laser ablations resulted in nanostructures on the cleaved endface of a multimode optical fiber with a 105/125 mu m core/cladding diameter. The laser-ablated fiber endface was SERS activated by silver chemical plating. High-quality SERS signal was detected using Rhodamine 6G molecules (10(-8)-10(-6) M solutions) via back excitation with the fiber length of up to 1 m. The fiber SERS probe was compared with a planar fused silica substrate at a front excitation. The long lead-in fiber length and the backexcitation/collection setup make the SERS probe promising for remote sensing applications. (C) 2009 Optical Society of America
引用
收藏
页码:2285 / 2287
页数:3
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