Optical vortices (OVs) carrying orbital angular momentum (OAM) have attracted
considerable interest in the field of optics and photonics owing to their peculiar optical …

This article reviews recent progress leading to the generation of optical vortex beams. After
introducing the basics of optical vortex beams and their promising applications, we …

Metasurfaces, which are the two-dimensional counterparts of metamaterials, have
demonstrated unprecedented capabilities to manipulate the wavefront of electromagnetic …

The term Poincaré beam, which describes the space-variant polarization of a light beam
carrying spin angular momentum (SAM) and orbital angular momentum (OAM), plays an …

Vortex beam carrying orbital angular momentum (OAM) has been widely explored in optical
and microwave regions attributed to its potential characteristics in communication systems …

Exquisite polarization control using optical metasurfaces has attracted considerable
attention thanks to their ability to manipulate multichannel independent wavefronts with …

Since its invention, holography has emerged as a powerful tool to fully reconstruct the
wavefronts of light including all the fundamental properties (amplitude, phase, polarization …

Vector vortex beams have attracted considerable research attention owing to their unique
optical properties, and have been explored in vortex filtering, photon entanglement, and the …

Metasurfaces are planar photonic elements composed of subwavelength nanostructures,
which can deeply interact with light and exploit new degrees of freedom (DOF) to manipulate …

Metasurfaces are planar metamaterials exhibiting certain inhomogeneous phase
distributions for transmitted or reflected waves, which can efficiently reshape the wave‐fronts …