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arXiv 2402.05765physics.optics
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实际分数阶涡旋光束在远场的分析

Analysis of practical fractional vortex beams at far field

Eduardo Peters, Gustavo Funes, Lluís Martínez-León, Enrique Tajahuerce

AI总结:

本研究通过数值分析实际分数阶涡旋的远场相位和跃迁行为,揭示了TC测量极限及高阶测量挑战,并提出依赖TC和束腰的“强度阶梯”,为实际涡旋测量提供新见解。

摘要:

关于计算光学涡旋的拓扑荷(TC)或涡旋强度的问题,在科学家中产生了分歧意见。这是因为从实验角度来看,恰当的分析结果难以得到支持,导致不同的结果和结论。在本工作中,我们将展示数值数据,这些数据显示了实际分数阶涡旋的TC测量极限,以及高阶测量可能带来的挑战。通过分析远场相位和跃迁行为,我们表明它们遵循特定的曲线,这些曲线不仅依赖于TC,还依赖于束腰。这使我们提出了一种新的实际涡旋的“强度阶梯”。我们的目的是在先前结果中未考虑的实际场景中提供一些见解。

英文摘要:

The subject of calculating the topological charge (TC) or vortex strength of optical vortices has generated divided opinions among scientists. This is due to the fact that proper analytical results are hard to support from the experimental point of view, leading to different results and conclusions. In this work we will present numerical data that shows the limits of TC measurements for practical fractional vortices and the possible challenges that high order measurements may pose. By analyzing the far field phase and the behavior of the transitions we have shown that they follow specific curves that depend not only on the TC but also on the beam waist. This leads us to present a new "strength staircase" for practical vortices. Our aim is to give some insight in practical scenarios that have not been taken into account in previous results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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