<? pag\vskip-16pt?> Harnessing linear and angular momenta of light is one of the
cornerstones in modern optics and has found tremendous applications in optical circuits …

We review basic physics and novel types of optical angular momentum. We start with a
theoretical overview of momentum and angular momentum properties of generic optical …

Optical vortices, beams with spiral wavefronts and screw phase dislocations, have been
attracting increasing interest in various fields. Here, we theoretically propose and …

Transverse spin momentum related to the spin angular momentum (SAM) of light has been
theoretically studied recently and predicted to generate an intriguing optical lateral force …

In magnetic materials, skyrmions are nanoscale regions where the orientation of the electron
spin changes in a vortex-type manner,,–. Electromagnetic waves carry both spin and orbital …

Optics naturally provides us with some powerful mathematical operations. Here, we
experimentally demonstrate that during reflection or refraction at a single optical planar …

Both classical and quantum waves can form vortices: entities with helical phase fronts and
circulating current densities. These features determine the intrinsic orbital angular …

Light carries both spin and orbital angular momentum. These dynamical properties are
determined by the polarization and spatial degrees of freedom of light. Nano-optics …

The dual symmetry between electric and magnetic fields is an important intrinsic property of
Maxwell equations in free space. This symmetry underlies the conservation of optical helicity …

The Dirac-like dispersion in photonic systems makes it possible to mimic the dispersion of
relativistic spin-1/2 particles, which led to the development of the concept of photonic …