Vector vortex beams are widely concerned for their application prospects in various fields. Here we study the polarization rotation of hybrid-order vector vortex beam (HVVB) in hot atomic vapor both theoretically and experimentally. In this work, the HVVB is experimentally generated by combining two q-plates with a polarization beam splitter, and this method is verified by analyzing Jones vector based on the orthogonal circular polarization basis. We have experimentally investigated the polarization rotation of HVVB during the propagation in free space and atomic media. In free space, the polarization rotation characterized by rotation of horizontal components of the beams, has a limitation due to the effect of Gouy phase. In contrast, the polarization rotation angle in atomic media can break through this limitation due to the non-linearity and can be controlled by adjusting the relevant atomic parameters. The experimental results can be simulated by the theoretical model about ...

中文翻译：

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混合阶矢量涡旋光束偏振旋转的非线性控制

矢量涡旋光束在各个领域的应用前景受到广泛关注。在这里，我们在理论和实验上研究混合阶向量涡旋光束（HVVB）在热原子蒸气中的极化旋转。在这项工作中，HVVB是通过将两个q板与一个偏振分束器组合在一起而实验生成的，并通过基于正交圆偏振的琼斯矢量分析来验证了该方法。我们已经通过实验研究了HVVB在自由空间和原子介质中传播期间的极化旋转。在自由空间中，由于Gouy相位的影响，以光束水平分量旋转为特征的偏振旋转受到限制。相反，由于非线性，原子介质中的极化旋转角可以突破这一限制，并且可以通过调整相关的原子参数来控制。实验结果可以通过关于...的理论模型来模拟。