Fig. 5
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Polarization characterizations and the OAM determination of the two output beams. (a) The doughnut-shaped intensity profile of the output beam with a large refraction angle. (b) Intensity profiles of the output beam after a rotating linear polarizer. (c) The interference pattern of the output beam and the reference of left/right circular polarization. (d) The doughnut-shaped intensity profile of the output beam with the small refraction angle. (e) Intensity profiles of the output beam after a rotating linear polarizer. (f) The interference pattern of the output beam and the reference of left/right circular polarization.
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