ABSTRACT
When molecules are near-field coupled with optical nanoantennas,
their scattering properties are strongly affected by the radiation
properties of the nanoantenna itself. In surface-enhanced Raman
spectroscopy (SERS) the scattering cross section is greatly en-
hanced. As well, the field orientation and polarization are modified
by the nanoantenna radiation modes. This chapter discusses how
the polarization of the Raman field, inelastically scattered by
molecules in SERS, is modified by the interaction with optical
nanoantennas in a model beyond the E 4 approximation. The polarized SERS intensity is discussed for different nanoantenna
geometries and insight on how to recover information on the Raman
polarizability tensor based on the SERS measurements is given.
