光学涡旋（Optical Vortices）是最近几年来遭到看重并被普遍研讨运用的一种特别光场。光学涡旋具有特别的波前构造和肯定的光子轨道角动量，如今曾经在光学微把...
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光学旋涡 optical vortices
Optical vortex has been extensively investigated recently.
近年来,人们对光学涡旋进行了广泛的研究。
参考来源 - 三个小孔的衍射场干涉生成光学涡旋The angular momentum distributions and their propagation evaluation characteristics of optical vortices,especially vortices with the complicated topological structure,which are difficult to measure accurately through an experiment,can be obtained by numerical computation.
对于光学涡旋特别是具有复杂拓扑结构的光学涡旋,可以通过数值计算的方法获得实验上难以准确测量的角动量分布及其传输演化特性。
参考来源 - 光学涡旋横向线动量密度的传输演化特性·2,447,543篇论文数据，部分数据来源于NoteExpress
分析了入射光带宽对不希望存在的零阶光学涡旋模式的影响。
The influences of bandwidth on the unfavorable plane wave mode are analyzed.
并引入消色差材料使得在很宽的带宽内都能得到比较纯的光学涡旋。
The achromatic SPPs have also been introduced to generate high purity optical vortices in a broad bandwidth.
基于这个衍射特性，提供了一种测量光学涡旋轨道角动量的简易方法。
Based on this property, it provides us a simple way to detect the orbital angular momentum (OAM) of an optical vortex beam.
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