Degree of coherence for vectorial electromagnetic fields as the distance between correlation matrices.
Degree of coherence for vectorial electromagnetic fields as the distance between correlation matrices.
复制标题
矢量电磁场的相干度作为相关矩阵之间的距离。
DOI：
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发表时间：
2007
影响因子：
1.9
通讯作者：
A. Luis
中科院分区：
文献类型：
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作者：
A. Luis
我们用表示完全非相干光的交叉谱密度矩阵和单位矩阵之间的距离来评估空间-频率域中矢量电磁场的相干度。将这一定义与以前的方法进行了比较。结果表明，对于由原始场的线性组合得到的任意对标量波，该距离提供了相干度和可见度的上界。当将先前对全局相干的定义应用于杨氏干涉仪时，同样的方法也出现了。
We assess the degree of coherence of vectorial electromagnetic fields in the space-frequency domain as the distance between the cross-spectral density matrix and the identity matrix representing completely incoherent light. This definition is compared with previous approaches. It is shown that this distance provides an upper bound for the degree of coherence and visibility for any pair of scalar waves obtained by linear combinations of the original fields. This same approach emerges when applying a previous definition of global coherence to a Young interferometer.