纳米银球分形聚集体局域重组的光谱研究
Spectroscopic studies of fractal aggregates of silver nanospheres undergoing local restructuring
摘要：
我们提出了一个实验光谱研究的大型随机胶体聚集体的银纳米粒子进行局部重组。我们认为，这些著名的现象，如强烈的局部电磁场的波动，出现的“热点”和增强的非线性光学响应取决于几个纳米球直径尺度上的局部结构，而不是大尺度的分形几何的样品。
英文摘要：
We present an experimental spectroscopic study of large random colloidal aggregates of silver nanoparticles undergoing local restructuring. We argue that such well-known phenomena as strong fluctuation of local electromagnetic fields, appearance of "hot spots" and enhancement of nonlinear optical responses depend on the local structure on the scales of several nanosphere diameters, rather that the large-scale fractal geometry of the sample.
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