arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.00198physics.optics
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矢量涡旋光束偏振奇异性的新机制

New mechanism for polarization singularity of vector vortex beams

Chun-Fang Li

摘要:

最近认识到,在光束的积分表示中的平面波模式的偏振基需要由无发散麦克斯韦方程产生的自由度来确定。这是文献中经常引入的实单位向量,称为Stratton向量。这样确定的极化基在平行于斯特拉顿矢量的动量处是奇异的。本文证明了矢量涡旋光束的积分表示的偏振奇异性来自于与Stratton矢量相关的偏振基的奇异性。讨论了矢量涡旋光束偏振结构与偏振基的一致性。

英文摘要:

It was recently realized that the polarization bases of the plane-wave modes in the integral representation of a light beam need to be determined by a degree of freedom arising from the divergence-free Maxwell's equation. This is a frequently introduced real unit vector in the literature, called Stratton vector. The polarization bases so determined are singular at the momentum that is parallel to the Stratton vector. Here we show that the polarization singularity of vector vortex beams given by the integral representation comes from the singularity of the polarization bases in association with the Stratton vector. The consistency of the polarization structure of the vector vortex beams with their polarization bases is also discussed.

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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