Propagation characteristics of partially coherent circular Airy beams.
Propagation characteristics of partially coherent circular Airy beams.
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DOI：
10.1364/oe.26.023084
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发表时间：
2018-08
期刊：
影响因子：
3.8
通讯作者：
Yunfeng Jiang;Wenlei Yu;Xiuwei Zhu;Peipei Jiang
中科院分区：
文献类型：
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作者：
Yunfeng Jiang;Wenlei Yu;Xiuwei Zhu;Peipei Jiang
对部分相干圆艾里光束在不同空间相干长度下的突变自聚焦特性进行了理论研究。结果表明，随着空间相干长度的减小，焦斑尺寸增大，焦斑强度减小。但是，与相同条件下的普通部分相干高斯光束相比，部分相干CAB的突然自聚焦特性仍然十分明显，且其自聚焦位置不易受相干性的影响。最后研究了初始半径r0和衰减参数a对自聚焦特性的影响。
The abruptly autofocusing properties of partially coherent circular Airy beam (CAB) with different spatial coherent length are theoretically investigated in this paper. It is found that, as spatial coherent length decreases, the size of the focal spot would increase and the focal intensity would decrease. But the abruptly autofocusing property for partially coherent CAB is still quite obvious, when comparing with the common partially coherent Gaussian beam under the same conditions; and its autofocusing position is less easily influenced by coherence. The influences of initial radius r0 and decaying parameter a on the autofocusing property have also been investigated in the end.