Abstract
We present coherent and partially coherent beams that exhibit transverse pattern expansion and rotation upon free propagation. Coherent twisting beams may be generated by a suitable superposition of Laguerre-Gauss modes, while a model for partially coherent twisting beams is given by a continuous incoherent superposition of lowest order modes.
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Gori, F., Bagini, V., Santarsiero, M. et al. Coherent and partially coherent twisting beams. Optical Review 1, 143–145 (1994). https://doi.org/10.1007/BF03254845
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DOI: https://doi.org/10.1007/BF03254845