SERS EM field enhancement study through fast Raman mapping of Sierpinski carpet arrays
SERS EM field enhancement study through fast Raman mapping of Sierpinski carpet arrays
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DOI：
10.1002/jrs.2581
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发表时间：
2010-10-01
影响因子：
2.5
通讯作者：
Fang, Nicholas X.
中科院分区：
文献类型：
--
作者：
Hsu, Keng H.;Back, Ju H.;Fang, Nicholas X.
使用新的纳米图案化技术，即固态超离子冲压（54），制造了自相似的谢尔宾斯基地毯分形，以研究特征尺寸对等离子体增强拉曼散射的影响。演示了显示电磁 (EM) 场增强对比度的实时拉曼图像。在表面等离子体激元激发模式的背景下研究和解释了这些效应。此外，我们发现与连续的银表面相比，分形支持的电磁场增强在空间上延伸得更远。版权所有 (C) 2010 约翰·威利父子有限公司
Self-similar Sierpinski carpet fractals were fabricated using a new nanopatterning technique, i.e. solid-state superionic stamping (54), to study the effect of feature size on plasmon-enhanced Raman scattering. A real-time Raman image showing electromagnetic (EM) field enhancement contrast is demonstrated. The effects were studied and explained in the context of modes of surface plasmon excitation. Additionally, we find that the EM field enhancement supported by the fractals extends further spatially as compared to continuous Ag surfaces. Copyright (C) 2010 John Wiley & Sons, Ltd.