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Generation of arbitrary cylindrical vector vortex beams with cross-polarized modulation
Results in Physics ( IF 4.4 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.rinp.2020.103455
Junmin Liu , Xueyu Chen , Yanliang He , Liming Lu , Huapeng Ye , Guangyue Chai , Shuqing Chen , Dianyuan Fan

Cylindrical vector vortex beams (CVVBs), possessing both spatially nonuniform phase and polarization distribution, have attracted research interests in many applications due to their unique optical properties. Although various methods have been previously demonstrated, the generation of CVVBs with arbitrary topological charge and polarization order remains elusive. We introduce cross-polarized modulation method to construct CVVBs via changing the phases of the orthogonal polarization components of light beams. Two cross-polarized modulation approaches are demonstrated for conjugate and consistent phase orthogonal circular polarization beams. The phases of the orthogonal circular polarization components of light beams can be flexibly manipulated by exploiting the polarization-sensitivity of spatial light modulators, which leads to changed topological charges and polarization orders, and a group of CVVBs with different topological charges and polarization orders are successfully generated. Because of the adjustable orders and the single light path, the CVVBs generation method possess not only flexibility but also high stability.



中文翻译:

具有交叉极化调制的任意圆柱矢量涡旋光束的产生

具有空间不均匀的相位和偏振分布的圆柱形矢量涡旋光束(CVVB)由于其独特的光学特性而在许多应用中引起了研究兴趣。尽管以前已经证明了各种方法,但是具有任意拓扑电荷和极化顺序的CVVB的产生仍然难以捉摸。我们引入交叉偏振调制方法,通过改变光束的正交偏振分量的相位来构造CVVB。对于共轭和一致相位正交圆偏振光束,演示了两种交叉偏振调制方法。通过利用空间光调制器的偏振敏感度,可以灵活地控制光束的正交圆偏振分量的相位,这会导致拓扑电荷和极化顺序发生变化,并且成功生成了一组具有不同拓扑电荷和极化顺序的CVVB。由于顺序可调和光路单一,CVVBs生成方法不仅具有灵活性,而且具有很高的稳定性。

更新日期:2020-10-15
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