ABSTRACT
This chapter is focused on chiral nanostructures with plasmon and
exciton resonances. Electromagnetic interactions between chiral
and achiral building blocks in nanomaterials are modeled using
classical or semiclassical theories. The theory predicts several
mechanisms to transfer and induce circular dichroism (CD) in
the visible wavelength region using nanostructures. In particular,
enhanced molecular CD can be achieved in metal nanostructures
using Coulomb interaction and plasmon enhancement. Additional
amplification of molecular CD appears in plasmonic nanostructures
with hot spots and anisotropic geometries. The chapter also reviews
several experimental papers showing successful fabrications of
optically active chiral nanostructures and nano-assemblieswith new
plasmonic CD signals.
