V. V. Maksimenko, L. Yu. Kupriyanov, V. A. Zagaynov and I. E. Agranovski SERS from light localization positions Journal of Raman Spectroscopy 44
We propose a model allowing analysis of reasons for SERS by molecules adsorbed onto surfaces of metal particles. It considers multiple inelastic scatterings of photons, which move along loop inside a system of closely packed metallic particles. The reason for the photon motion along the closed loop is related to constructive interference of amplitudes corresponding to two alternative ways of the loop passing; clockwise and counter clockwise. Peculiarities of charge density fluctuations behaviour allow explaining some features of flicker noise.
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