2012 年 33 巻 4 号 p. 216-222
Recent developments in Surface Enhanced Raman scattering (SERS) towards single-molecule sensitivity and nanometer spatial resolution are reviewed. Particular focus is placed on detailed mechanism and fabrication methods of metal nanostructures to achieve single-molecule sensitivity. Also a gap mode plasmon relevant to transition metal with relatively large damping, and bio-medical application of SERS are reported.