A beam of light has radial polarization if at every position in the beam the polarization (electric field) vector points towards the center of the beam. In practice, an array of waveplates may be used to provide an approximation to a radially polarized beam.
A beam of light has radial polarization if at every position in the beam the polarization (electric field) vector points towards the center of the beam. In practice, an array of waveplates may be used to provide an approximation to a radially polarized beam.
Source: Wikipedia "Radial polarization" · CC BY-SA 4.0
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