<? 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 …

Thirty years ago, Coullet et al. proposed that a special optical field exists in laser cavities
bearing some analogy with the superfluid vortex. Since then, optical vortices have been …

Metasurfaces, which offer a diverse range of functionalities in a remarkably compact size,
have captured the interest of both scientific and industrial sectors. However, their inherent …

The photonic spin Hall effect (SHE) refers to the transverse spin separation of photons with
opposite spin angular momentum, after the beam passes through an optical interface or …

The coupling between photonic spin and orbital angular momenta is significantly enhanced
at the subwavelength scale and has found a plethora of applications in nanophotonics …

Pancharatnam–Berry (PB) phase has become an effective tool to realize the photonic spin
Hall effect (PSHE) in recent years, due to its capacity of enhancing the spin-orbit interaction …

Artificial gauge fields are currently realized in a wide range of physical settings. This
includes solid-state devices but also engineered systems, such as photonic crystals …

We propose theoretically and verify experimentally a method of combining a q-plate and a
spiral phase plate to generate arbitrary vector vortex beams on a hybrid-order Poincaré …

Perfect vortex beams are the orbital angular momentum (OAM)-carrying beams with fixed
annular intensities, which provide a better source of OAM than traditional Laguerre …

As artificial 2D materials made of subwavelength inclusions, metasurfaces bear exotic
optical and electromagnetic properties not obtainable in naturally occurring materials. Based …