Mei Zhangrong, Korotkova Olga
Opt Lett. 2020 Mar 15;45(6):1366-1369. doi: 10.1364/OL.388093.
We introduce a class of partially coherent, Schell-type sources whose degree of coherence is represented by a finite series of complex-valued functions. The significance of implementing such a series is due to the fact that one can manipulate the weighting coefficients of its terms having a computationally trivial linear phase of the degree of coherence for obtaining the radiated beams of the same complexity as could only be previously achieved with analytically intractable nonlinear phases. Our examples illustrate new opportunities for modeling asymmetric coherence gratings and lattices.
我们引入了一类部分相干的谢尔型光源，其相干度由一系列复值函数的有限项表示。采用这样一系列函数的意义在于，人们可以操纵其各项的加权系数，这些系数具有计算上简单的相干度线性相位，从而获得与之前只能通过解析上难以处理的非线性相位才能实现的具有相同复杂度的辐射光束。我们的示例展示了对非对称相干光栅和晶格进行建模的新机遇。
