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Two different classes of vector beams that have the same paraxial approximation

机译:具有相同近轴近似的两种不同类别的矢量光束

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摘要

It is observed that there exist two different classes of vector light beams that have the same first-order paraxial approximation. They are characterized by the axial and transverse orientations of a constant unit vector that comes from the constraint of transversality condition. Their vectorial structures in the nonparaxial regime and angular momentum properties are compared.
机译:可以看到,存在两种不同的矢量光束,它们具有相同的一阶近轴近似。它们的特征是来自横向条件的约束的恒定单位矢量的轴向和横向方向。比较了它们在非傍轴状态下的矢量结构和角动量特性。

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