Surface-enhanced Raman scattering microchip fabricated by femtosecond laser

被引：9
|
作者：
Lin, Cheng-Hsiang [1 ,2 ]
Jiang, Lan [3 ]
Xiao, Hai [4 ]
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, Dept Mech & Automat Engn, Sch 3, Beijing 100081, Peoples R China
[4] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA
来源：
OPTICS LETTERS | 2010年 / 35卷 / 17期
基金：
中国国家自然科学基金;
关键词：
PHOTOSENSITIVE GLASS; CHIP;
D O I：
10.1364/OL.35.002937
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a surface-enhanced Raman scattering (SERS) microchip that is capable of measuring SERS signals of liquid samples with high sensitivity. The microdevice is an integration of a silicon-based SERS substrate, a multi-mode optical fiber (MMF), and a microchannel embedded in the photosensitive glass fabricated by the femtosecond laser followed by thermal treatment, wet etching, and annealing. The performance of the SERS microchip is evaluated by measuring rhodamine 6G using a 632.8 nm He-Ne laser at 4.3 mW excitation power, which reveals that the detection limit is lower than 10(-10) M at a 1 s short accumulation time. (C) 2010 Optical Society of America
引用
收藏
页码：2937 / 2939
页数：3
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