拓扑量子数
涡流
空间相干性
连贯性(哲学赌博策略)
物理
拓扑(电路)
傅里叶变换
梁(结构)
相干长度
电荷(物理)
光学
计算物理学
凝聚态物理
量子力学
数学
组合数学
热力学
超导电性
作者
Chengliang Zhao,Fei Wang,Yuan Dong,Yu-Jing Han,Yangjian Cai
摘要
It is known that one can determine the topological charge of a vortex beam based on the Fourier transform of its intensity. We demonstrate both theoretically and experimentally that this method will be invalid for determining the topological charge of a vortex beam with low coherence. Furthermore, we propose a method to determine the topological charge of a vortex beam with low coherence based on its complex degree of coherence.
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