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 …

Light can be tailored to carry angular momentum well beyond the restriction of its two spin
states, left-and right-circularly polarized light, by imbuing it with orbital angular momentum …

Computer-generated holograms are crucial for a wide range of applications such as 3D
displays, information encryption, data storage, and opto-electronic computing. Orbital …

Structured light is derived from the ability to tailor light, usually referring to the spatial control
of its amplitude, phase, and polarization. Although a venerable topic that dates back to the …

Structured light refers to the generation and application of custom light fields. As the tools
and technology to create and detect structured light have evolved, steadily the applications …

Twenty-five years ago Allen, Beijersbergen, Spreeuw, and Woerdman published their
seminal paper establishing that light beams with helical phase-fronts carried an orbital …

Abstract Three-dimensional (3D) glass chips are promising waveguide platforms for building
hybrid 3D photonic circuits due to their 3D topological capabilities, large transparent …

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 …

Modal decomposition of light has been known for a long time, applied mostly to pattern
recognition. With the commercialization of liquid-crystal devices, digital holography as an …

The angular momentum of light can be described by positions on a higher-order Poincaré
sphere, where superpositions of spin and orbital angular momentum states give rise to laser …