The optical local-field enhancement on nanometer length scales provides the basis for
plasmonic metal nanostructures to serve as molecular sensors and as nanophotonic …

With a phase-sensitive near-field microscope we measure independently the two in-plane
electric field components of light propagating through a 2D photonic crystal waveguide and …

Chemically synthesized metallic nanostructures can exhibit a strong local optical field
enhancement associated with their high degree of crystallinity and well-defined geometry …

The fundamental mechanisms of tip-enhanced Raman spectroscopy (TERS) have been
investigated, including the role of the plasmonic excitation of the metallic tips, the nature of …

Image dipole effects are highly dependent on the polarization direction, constructive
(destructive) interference between real and image dipoles for the vertically (horizontally) …

We demonstrate spatial control of optical near-fields by femtosecond phase shaping in one-
dimensional plasmonic structures. The near-field images display striking temporal-phase …

Optical spectroscopy represents a powerful characterization technique with the ability to
directly interact with the electronic, spin, and lattice excitations in matter. In addition, through …

The function of nanophotonic devices, such as metamaterials for the visible range, photonic
and plasmonic crystals, nanoscale waveguides, resonators, switches or optical antennas …

Image dipole effects are highly dependent on the polarization direction, constructive
(destructive) for the vertical (horizontal) dipole with respect to the interface, respectively …