Structured light, especially beams carrying orbital angular momentum (OAM), has gained
much interest due to its unique amplitude and phase structures. In terms of communication …

Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension
of light waves into a helical phase structure, has given rise to many applications in optical …

Due to its absorption properties in atmosphere, the mid-infrared (mid-IR) region has gained
interest for its potential to provide high data capacity in free-space optical (FSO) …

With inherent orthogonality, both the spin angular momentum (SAM) and orbital angular
momentum (OAM) of photons have been utilized to expand the dimensions of quantum …

The orbital angular momentum is a fundamental degree of freedom of light wavefronts,
currently exploited in applications where information capacity is a key requirement, such as …

The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

In recent years, there has been a rising interest in high‐dimensional quantum states and
their impact on quantum communication. Indeed, the availability of an enlarged Hilbert …

Optical elements that convert the spin angular momentum (SAM) of light into vortex beams
have found applications in classical and quantum optics. These elements—SAM-to–orbital …

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

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