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circularly polarized radiation
radiation in which the electric field vector is of constant amplitude and rotates about the direction of propagation at a rate equal to the radiation frequency
Note 1 to entry: Circularly polarized radiation is described as right-handed (or left-handed) if the rotation of the electric field vector is clockwise (or anticlockwise) as viewed by an observer receiving the radiation.
Note 2 to entry: This entry was numbered 17-177 in CIE S 017:2011.