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arXiv 0812.0888physics.optics
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光束瞬时场分布的横向旋转与轨道angular momentum

Transverse rotation of the momentary field distribution and the orbital angular momentum of a light beam

A. Ya. Bekshaev

摘要:

通常在实验中观察到的横向光束图案是对分布在光束截面上的电磁场的光频振荡进行平均的结果。导出了一个分析判据,即这些振荡与一种绕束轴的旋转相耦合。这个标准似乎是在直接关系的光束轨道角动量的通常定义。

英文摘要:

The transverse beam pattern, usually observed in experiment, is a result of averaging the optical-frequency oscillations of the electromagnetic field distributed over the beam cross section. An analytical criterion is derived that these oscillations are coupled with a sort of rotation around the beam axis. This criterion appears to be in direct relation with the usual definition of the beam orbital angular momentum.

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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