Photonic quantum technologies represent a promising platform for several applications,
ranging from long-distance communications to the simulation of complex phenomena …

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 …

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 …

Quantum key distribution (QKD) systems often rely on polarization of light for encoding, thus
limiting the amount of information that can be sent per photon and placing tight bounds on …

Metasurfaces, two‐dimensional versions of metamaterials, retain the great capabilities of
three‐dimensional counterparts in manipulating electromagnetic wave behaviors, while …

Mode division multiplexing (MDM)–using a multimode optical fiber's N spatial modes as data
channels to transmit N independent data streams–has received interest as it can potentially …

Orbital angular momentum (OAM) of light is an attractive degree of freedom for fundamental
studies in quantum mechanics. In addition, the discrete unbounded state-space of OAM has …

Optical wave packets that are localized in space and time, but nevertheless overcome
diffraction and travel rigidly in free space, are a long sought-after field structure with …

In this article, we review recent developments in the field of surface electromagnetic wave
holography. The holography principle is used as a tool to solve an inverse engineering …