从经典电磁场理论出发，主要介绍了傍轴近似条件下，光束的轨道角动量和光束的参数之间的关系。
Based on the classical theory of electromagnetism, the relation and the difference between OAM and the parameter of the beam in paraxial approximation are analyzed.
从一个佯谬问题出发，利用数学计算的方法，得出了稳态电磁场动量守恒的结论。
From a sham false question, used the method of math calculate, received conservation of momentum's conclusion to steady-state electrical and magnetism.
利用简单对称性的电磁场，讨论了场和电荷系统遵从的动量守恒、量矩守恒定律。
With a simple symmetrical electromagnetic field, the law of conservation of momentum and the law of conservation of angular momentum for electromagnetic field and charges system are investigated.
导出了电磁场的自旋角动量与内禀角动量的关系。
Besides, the conservation property of the intrinsic angular momentum, the relations between the spin angular momentum and the intrinsic angular momentum of an electroma…
导出了电磁场的自旋角动量与内禀角动量的关系。
Besides, the conservation property of the intrinsic angular momentum, the relations between the spin angular momentum an…
导出了电磁场的自旋角动量与内禀角动量的关系。
Besides, the conservation property of the intrinsic angular momentum, the relations between the spin angular momentum an…
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