The orbital angular momentum of electrons has long been considered a minor physical phenomenon, suppressed in most crystals ...

The larger the orbital angular momentum, the longer the vortex takes to spin around. Interestingly, the observation of the vortex dynamics can also be used to distinguish the helicity of the light ...

Additionally, it is possible to distinguish angular momentum stored in the orbital motion vs. in the spin of the electrons when the respective absorption spectra are analyzed. Via this detailed X ...

An experiment shows, for the first time, that a wave property of neutrons, Orbital Angular Momentum ... "Before, we could only study the spin, path and energy degrees of freedom of chiral ...

More information: T. Arikawa et al. Transfer of orbital angular momentum of light to plasmonic excitations in metamaterials, Science Advances (2020). DOI: 10.1126/sciadv.aay1977 Sonja Franke-Arnold.

It's almost always the last topic in the first semester of introductory physics—angular momentum. Best for last, or something? I've used this concept to describe everything from fidget spinners ...