unpolarized radiation
radiation that exhibits no preferential directional property in a plane normal to the direction of propagation of the radiation, the direction and phase of the electric field vector being randomly distributed
Note 1 to entry: to entry: A beam of unpolarized radiation can be regarded as being composed of two components of equal amplitude but with orthogonal states of polarization, the two components being unrelated in phase.
Note 2 to entry: This entry was numbered 17-1375 in CIE S 017:2011.