Optics Express recently published research demonstrating a laser that is able to produce a new type of vector beam. This so-called vector-ray-wave beam with 5 degrees of freedom breaks the paradigm of the conventional vector vortex beam, which opens the way to manipulating new quantum-to-classical phenomena for high-capacity communications.
source https://phys.org/news/2021-03-ultra-degree-of-freedom-vector.html
