Dimensional properties of Laguerre-Gaussian vortex beams
作者： Jie Zhang , Su-Juan Huang , Fu-Quan Zhu , Wei Shao , Mu-Sheng Chen
DOI: 10.1364/AO.56.003556
关键词: Spatial light modulator 、 Optical vortex 、 Laguerre polynomials 、 Optics 、 Topological quantum number 、 Light beam 、 Radius 、 Beam (structure) 、 Physics 、 Computer simulation
摘要: We derive and analyze the dimensional properties of Laguerre-Gaussian vortex beams theoretically numerically. The analytical expressions inner outer radii are given out proved to be proportional transverse beam size, when topological charge remains. ratio radius only depends on charge, having nothing do with waist propagation distance, decreases as increases. Using a spatial light modulator loaded computer-generated holograms, we generate beams. experimental results in good agreement our numerical simulations. This research may provide useful insights into study optical its further applications.
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