Abstract

Bessel-like beams with controllable rotation of local linear polarization upon propagation are generated, which in fact achieve the evolution of polarization states along the equator of the Poincaré sphere during propagation. Based on the amplitude–phase joint modulation method, the rotation direction and rate of polarizations of the Bessel-like beam can be controlled easily by adjusting the radial indices and intensity ratio of two superposed beams. A rotation angle of $\sim$800 deg has been achieved after a propagation distance of 120 mm, corresponding to a rotation rate of $\sim$6.7 deg/mm, which is about three times higher than in previous works.

© 2020 Optical Society of America

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