This book introduces the fascinating world of plasmonics and physics at the nanoscale with a
focus on simulations and the theoretical aspects of optics and nanotechnology. A research field
with numerous applications plasmonics bridges the gap between the micrometer length scale of
light and the secrets of the nanoworld. This is achieved by binding light to charge density
oscillations of metallic nanostructures so-called surface plasmons which allow
electromagnetic radiation to be focussed down to spots as small as a few nanometers. The book
is a snapshot of recent and ongoing research and at the same time outlines our present
understanding of the optical properties of metallic nanoparticles ranging from the tunability
of plasmonic resonances to the ultrafast dynamics of light-matter interaction. Beginning with a
gentle introduction that highlights the basics of plasmonic interactions and plasmon imaging
the author then presents a suitable theoretical framework for the description of metallic
nanostructures. This model based on this framework is first solved analytically for simple
systems and subsequently through numerical simulations for more general cases where for
example surface roughness nonlinear and nonlocal effects or metamaterials are investigated.
