We review basic physics and novel types of optical angular momentum. We start with a
theoretical overview of momentum and angular momentum properties of generic optical …

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

Ultracompact sources of circularly polarized light are important for classical and quantum
optical information processing. Conventional approaches for generating chiral emission are …

The pace of innovations in the field of optical trapping has ramped up in the past couple of
years. The implementation of structured light, leading to groundbreaking inventions such as …

Light carries both spin and orbital angular momentum. These dynamical properties are
determined by the polarization and spatial degrees of freedom of light. Nano-optics …

As they travel through space, some light beams rotate. Such light beams have angular
momentum. There are two particularly important ways in which a light beam can rotate: if …

The general question, crucial to an understanding of the internal structure of the nucleon, of
how to split the total angular momentum of a photon or gluon into spin and orbital …

A few years ago the possibility of coupling and inter-converting the spin and orbital angular
momentum (SAM and OAM) of paraxial light beams in inhomogeneous anisotropic media …

We review optical phenomena associated with the internal energy redistribution which
accompany propagation and transformations of monochromatic light fields in homogeneous …

We present a general theory of spin-to-orbital angular momentum (AM) conversion of light in
focusing, scattering, and imaging optical systems. Our theory employs universal geometric …