Partially Coherent Dual and Quad Airy‐Like Beams,Annalen Der Physik

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Partially Coherent Dual and Quad Airy‐Like Beams
Annalen Der Physik ( IF 2.2 ) Pub Date : 2021-02-15 , DOI: 10.1002/andp.202000618
Keming Pan ₁ , Jia Xu ₁ , Yao Zhang ₁ , Daomu Zhao ₁

Affiliation

Partially coherent multi‐Airy‐like beams are investigated by introducing coordinate transformation parameters and combining them with the theory of multi‐beam superposition under symmetrical conditions, for the case of dual and quad as examples. The accurate propagation position of the mutual‐focusing point is obtained by analyzing the normalized spectral density (SD) curves at different planes. The outcomes show that both the optical frame and the interference pattern can be changed by means of adjusting the coordinate transformation parameters. For a special circumstance, the transverse SD overlapping profile is presented in a rotational four‐square grid. In addition, the coordinate transformation parameters periodically affect the distance between the two main lobes, which provides us a new idea with adjusting the width of the optical frame edges. Moreover, both the peak intensity of the SD and the divergence speed can be controlled by tuning the value of the equivalent beam width. These results may provide new inspiration for applications of partially coherent Airy‐like beams in optical propagation, capture, and communication.

中文翻译：

部分相干的双和四像通风光束

通过引入坐标变换参数，并将它们与对称条件下的多光束叠加理论相结合，研究部分相干的多艾里光束，例如对偶和四重情况。通过分析不同平面上的归一化光谱密度（SD）曲线，可以获得对焦点的准确传播位置。结果表明，可以通过调整坐标变换参数来更改光学框架和干涉图样。对于特殊情况，横向SD重叠轮廓以旋转的四方形网格显示。此外，座标转换参数会定期影响两个主瓣之间的距离，这为我们提供了调整光学框架边缘宽度的新思路。而且，可以通过调整等效光束宽度的值来控制SD的峰值强度和发散速度。这些结果可能为部分相干的像艾里光束在光学传播，捕获和通信中的应用提供新的启发。

更新日期：2021-04-08

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