surface-enhanced Raman spectroscopy single molecule surface-enhanced Raman spectroscopy single molecule surface enhanced Raman scattering spectroscopy single molecule surface-enhanced Raman scattering spectroscopy single molecule surface enhanced Raman scattering SM SERS SMSERS SM-SERS single molecule surface-enhanced Raman scattering Spectroscopy where the Raman scattering of monochromatic light, from a visible laser, by a single molecule sample adsorbed onto a metal (Au, Ag or Cu) surface is detected. SM-SERRS SM-SERS spectroscopy CHMO:0000770 single molecule surface-enhanced Raman spectroscopy