Fig. 1: Vectorially structured light.
From: Creation and control of high-dimensional multi-partite classically entangled light
a A conventional vector beam: a paraxial mode with a spatially varying polarisation structure, characterised by the given Bell state, and b an illustration of a new high-dimensional vectorially structured light field comprising polarisation marked lights along multiple intrinsic DoFs in one single paraxial beam, which is constructed by a set of GHZ states. The Bell state and GHZ state are marked in a and b, respectively. x and y are the transverse coordinates and z is the longitudinal coordinate (paraxial propagation direction)
