SEARCH Articles Figures Tables Excitation enhancement factor Excitation enhancement factor coupling Excited state enhancements, nonlinear optics Gold nanoparticles excitation enhancement Nanoaperture-enhanced fluorescence excitation enhancement Near-field effects excitation enhancement Photoluminescence excitation enhancement Plasmon-Sampled Surface-Enhanced Raman Excitation Spectroscopy Plasmon-sampled surface-enhanced Raman excitation Quantum dots excitation enhancement Resonance enhancement single-frequency excitation Second excited states , metal-enhanced Silver nanoparticles wavelength-dependent excitation enhancement