We introduce a wide class of singular inhomogeneously polarized beams characterized by a nonuniform rotation rate of the local polarization azimuth about a C- or a V-point. They are obtained by adding an extra phase modulation with an m-fold rotational symmetry to the helical wavefronts underpinning Poincar beams. The resulting modulated Poincar beams have been theoretically studied and experimentally generated using tailored space-varying-axis plates based on liquid crystals.

中文翻译：

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使用调制庞加莱光束增加光的拓扑多样性

我们介绍了一大类奇异的非均匀偏振光束，其特征在于围绕 C 点或 V 点的局部偏振方位角的非均匀旋转速率。它们是通过向支撑 Poincar 光束的螺旋波前添加具有m倍旋转对称性的额外相位调制而获得的。使用定制的基于液晶的空变轴板，已对由此产生的调制庞加莱光束进行了理论研究和实验生成。