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王雪华
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期刊论文
Unified treatment of fluorescence and Raman scattering processes near metal surfaces
，-0001，（）：
We present a general model study of surface-enhanced resonant Raman scattering and fluorescence focusing on the interplay between electromagnetic effects and the molecular dynamics. Our modelmolecule is placed close to two Ag nanoparticles, and has two electronic levels. A Franck-Condon mechanism provides electron-vibration coupling. Using realistic parameter values for the molecule we find that an electromagnetic enhancement by 10 orders of magnitude can yield Raman crosssections σR of the order 10−14 cm2. We also discuss the dependence of σR on incident laser intensity.
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