Partially Coherent Dual Nonparaxial Accelerating Beams
Partially Coherent Dual Nonparaxial Accelerating Beams
复制标题
部分相干双非旁轴加速光束
DOI:
10.1002/andp.202000438
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发表时间:
2020-12
影响因子:
2.4
通讯作者:
Daomu Zhao
中科院分区:
文献类型:
--
作者:
Zishuai Zeng;Daomu Zhao
Partially coherent dual nonparaxial accelerating beams are constructed from the perspective of a superposition of fully coherent modes and incoherent interference effects among these modes. It is found that divergence angle and partial coherence of such beams can be altered by a curvature parameter. At the beginning of the propagation, such beams focus in the case of constructive interference, but they leave a central dip in the destructive case. Additionally, the extension of a crossed‐shaped intensity distribution caused by interference is slower than that of the transverse beam frame evidently. In particular, moving along the nonparaxial accelerating trajectory on the micrometer scale, the main lobes of these beams can diverge to a nearly flat angle. As such, these beams are likely to have applications in microscopic particle manipulation and coherence image processing.
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DOI:
10.1119/1.18450
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