Orbital angular momentum (OAM) has aroused a widespread interest in many fields,
especially in telecommunications due to its potential for unleashing new capacity in the …

The fact that light carries both linear and angular momentum is well-known to physicists.
One application of the linear momentum of light is for optical tweezers, in which the …

Exploiting a particular wave property for a particular application necessitates components
capable of discriminating in the basis of that property. While spectral or polarisation …

Orbital angular momentum (OAM), which describes the “phase twist”(helical phase pattern)
of light beams, has recently gained interest due to its potential applications in many diverse …

One property of electromagnetic waves that has been recently explored is the ability to
multiplex multiple beams, such that each beam has a unique helical phase front. The …

Recently, an intriguing 2D metamaterial, called the metasurface,[24] has gained attention
due to its ability to manipulate optical phase fronts. Instead of acquiring a desired phase …

The recognition in the 1990s that light beams with a helical phase front have orbital angular
momentum has benefited applications ranging from optical manipulation to quantum …

Sorting orbital angular momentum (OAM) and spin angular momentum (SAM) of photons is
crucial for optical communications, optical storage, and quantum information processing …

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

Time, polarization, and wavelength multiplexing schemes have been used to satisfy the
growing need of transmission capacity. Using space as a new dimension for communication …