Surface-Enhanced Raman Scattering
In this chapter, we will review recent studies of the electromagnetic (EM) and chemical mechanisms of surface-enhanced Raman scattering (SERS), including experimental and theoretical studies.
We will begin with the theory of EM ﬁeld and the computational
methods. Secondly, we will introduce the charge-transfer (chemical) mechanism of SERS, where charge transfer between molecule
and metal, intramolecular charge redistribution and intramolecular
charge transfer will be visualized with the recently developed three-
dimensional (3-D) cube representation. Thirdly, we will discuss
our recently experimental results on SERS. Lastly, we will discuss
recent experimental result on remote SERS excited by propagating
dielectric waveguide along quasi-one-dimensional (Q1D) transition metal oxides, and by propagating plasmonic waveguide along single
Au nanowire with quasi-spherical termini.