Spectroscopic Studies of Fractal Aggregates of Silver Nanospheres Undergoing Local Restructuring
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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 than the large-scale fractal geometry of the sample.
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Suggested Citation: Karpov, S.V., Gerasimov, V.S., Isaev, I.L. and Markel, V. (2006). Spectroscopic studies of fractal aggregates of silver nanospheres undergoing local restructuring. The Journal of Chemical Physics. 125, 111101. © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://dx.doi.org/10.1063/2229202.