Fig. 15From: Integrated enhanced Raman scattering: a reviewReprinted with permission from Ref. [64]Nanoplasmonic slot waveguide. a Schematic showing that the input and Stokes powers are guided by the waveguide. b Scanning electron microscope image of the gold-covered slot in top view. c Cross-section of a nanoplasmonic slot waveguide with a gap. Back to article page