Abstract
Surface-enhanced Raman scattering (SERS) is a technique for amplifying a Raman scattering signal, which is intrinsically weak and therefore hard to detect. The Raman enhancement factor can be as high as 102–106 and may even be as high as 1015, which is sufficient to detect Raman scattering from single molecules. By combining this powerful SERS technique with deep-ultraviolet (DUV) resonance Raman spectroscopy, ultrasensitive detection and analysis of molecules by DUV resonance Raman spectroscopy become possible. In this chapter, recent progress in DUV-SERS is reviewed. Also, the available metals for selection as SERS substrates are discussed. As an application of DUV-SERS to molecular nanoimaging, the development of DUV tip-enhanced Raman scattering (TERS) is also described. Finally, some issues to be overcome and future perspectives are discussed.
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