The control of light fields on subwavelength scales in nanophotonic structures has become
ubiquitous, driven by both curiosity and a multitude of applications in fields ranging from …

Polarization singularities of vectorial electromagnetic fields locate at the positions where
properties of polarization ellipses are not defined. First observed for conical diffraction in …

We report on realization of channel plasmon-polariton (CPP) propagation along a
subwavelength metal groove. Using imaging with a near-field microscope and end-fire …

We show the real-space observation of fast and slow pulses propagating inside a photonic
crystal waveguide by time-resolved near-field scanning optical microscopy. Local phase and …

The eigenfield distribution and the band structure of a photonic crystal waveguide have
been measured with a phase-sensitive near-field scanning optical microscope. Bloch …

Light-matter interactions can provide a wealth of detailed information about the structural,
electronic, optical, and chemical properties of materials through various excitation and …

We report on scanning near-field optical microscopy of one-dimensional chains of gold
nanoparticles which are optically excited at their particle plasmon frequency under total …

We report on the light propagation in a one-line-defect photonic crystal waveguide (W1 PhC
WG) patterned into a 450 nm thick free-standing lithium niobate membrane by ion-beam …

Recent advances within the realization of silica-based planar waveguide circuitry are
presented. This ranges from the production methods for planar waveguides, including a …

We generate experimentally different types of two-dimensional Bloch waves of a square
photonic lattice by employing the phase imprinting technique. We probe the local dispersion …