arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.10571physics.optics
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交叉相位法测量和整形理想光涡旋

Measurement and Shaping of Perfect Optical Vortex via Cross Phase

Chen Wang, Yuan Ren

摘要:

本文首次研究了利用交叉相位测量和整形理想光学涡旋的方法。在实验上,我们提出了一种利用低阶交叉相位(LOCP)在傅里叶平面上测量POVs的+3和+5拓扑荷的方法,利用高阶交叉相位(HOCP)实现了POVs在傅里叶平面上的光强分布整形,并展示了HOCP对光场的非对称调制能力。讨论了成形过程中各参数对光场的影响。在此基础上,我们提出了一种结合微卫星特性的二次能量控制方法,在保证灵活控制外形的同时,减小了对原微卫星轨道角动量的影响。这项工作提供了一种替代方法来测量和塑造的一个,这有利于在光学微操纵的应用。

英文摘要:

We investigate a method for the measurement and shaping of a perfect optical vortex (POV) by using the cross-phase for the first time. Experimentally, we propose a method to measure the topological charges +3 and +-5 of POVs with the low-order cross-phase (LOCP) at the Fourier plane; we realize shaping intensity distributions of POVs at the Fourier plane with the high-order cross-phase (HOCP) and show the asymmetric modulation ability of the HOCP for an optical field. Furthermore, we discuss the influence of parameters on the optical field in the shaping process. On this basis, we propose a secondary energy control method that combines the characteristics of the POV, which ensures flexible control of the shape while reducing the impact on the orbital angular momentum of the original POV. This work provides an alternative method to measure and shape a POV, which facilitates applications in optical micro-manipulation.

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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