Fast fabrication of a Ag nanostructure substrate using the femtosecond laser for broad-band and tunable plasmonic enhancement.
Fast fabrication of a Ag nanostructure substrate using the femtosecond laser for broad-band and tunable plasmonic enhancement.
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DOI：
10.1021/nn300947n
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发表时间：
2012-05
期刊：
影响因子：
17.1
通讯作者：
Ming Lun Tseng;Yao-Wei Huang;Min-kai Hsiao;Hsin Wei Huang;Hao Ming Chen;Yu Lim Chen;C. H. Chu
中科院分区：
文献类型：
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作者：
Ming Lun Tseng;Yao-Wei Huang;Min-kai Hsiao;Hsin Wei Huang;Hao Ming Chen;Yu Lim Chen;C. H. Chu
利用飞秒激光，我们将激光直写技术转化为一种高效的方法，可以在2000 μm（2）/min的快速扫描速率下将AgO（x）薄膜加工成Ag纳米结构，加工后的AgO（x）薄膜表现出宽带增强的光吸收，有效地用作活性Sers基底。用染色的聚合物珠探测等离子热点表明这些热点均匀地分布在处理区域上。
Using a femtosecond laser, we have transformed the laser-direct-writing technique into a highly efficient method that can process AgO(x) thin films into Ag nanostructures at a fast scanning rate of 2000 μm(2)/min. The processed AgO(x) thin films exhibit broad-band enhancement of optical absorption and effectively function as active SERS substrates. Probing of the plasmonic hotspots with dyed polymer beads indicates that these hotspots are uniformly distributed over the treated area.