Generation of a vectorial Mathieu-like hollow beam with a periodically rotated polarization property.
Generation of a vectorial Mathieu-like hollow beam with a periodically rotated polarization property.
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DOI：
10.1364/ol.36.001755
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发表时间：
2011-05
期刊：
影响因子：
3.6
通讯作者：
Huirong Li;J. Yin
中科院分区：
文献类型：
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作者：
Huirong Li;J. Yin
提出了一种利用轴棱锥光学系统产生矢量类马蒂厄空心光束（vMHB）的可行方案，并计算了该光束的光强分布、偏振分布及其分数轨道角动量（OAM）。我们还拟合了它的光强分布，得到了合适的理论表达式来描述这种类马修空心光束的三维（3D）传输特性。我们的研究表明，所产生的光束是一个vMHB内的传输距离1.2-2.2米，它具有不变（无衍射）的强度分布和周期性旋转的偏振特性，以及一个不变的分数OAM内1.2-2.2米。
We propose a promising and practical scheme to generate a vectorial Mathieu-like hollow beam (vMHB) by using an axicon optical system including a dual-mode elliptic hollow fiber (EHF), and calculate the intensity and polarization distributions of the beam and its fractional orbital angular momentum (OAM). We also fit its intensity profile and obtain suitable theoretical expressions to describe three-dimensional (3D) propagation characteristics of such a Mathieu-like hollow beam. Our study shows that the generated beam is a vMHB within the propagation distance 1.2-2.2 m, which has an unchanged (diffraction-free) intensity profile and periodically rotated polarization properties as well as an unchanged fractional OAM within 1.2-2.2 m.