Surface-Enhanced Raman Spectroscopy and Surface Plasmons

作者：J. C. Tsang, J. R. Kirtley, J. A. Bradley · 发表于：Physical Review Letters · 年份：1979 · DOI：10.1103/physrevlett.43.772 · 被引用次数：194 · 研究领域：Gold and Silver Nanoparticles Synthesis and Applications、Plasmonic and Surface Plasmon Research、Spectroscopy and Quantum Chemical Studies

The Raman spectra of 4-pyridine-carboxaldehyde-doped Al-${\mathrm{Al}}_{2}$${\mathrm{O}}_{3}$-Ag tunnel junctions evaporated onto Ca${\mathrm{F}}_{2}$ films and optical diffraction gratings show that the molecular Raman scattering is strongly enhanced under conditions which permit the direct excitation of the surface plasmon modes of Ag. This suggests that the surface plasmon is an intermediate state in surface-enhanced Raman scattering.