具有圆形相干性的部分相干光源。

Partially coherent sources with circular coherence.

作者信息

Santarsiero M, Martínez-Herrero R, Maluenda D, de Sande J C G, Piquero G, Gori F

出版信息

Opt Lett. 2017 Apr 15;42(8):1512-1515. doi: 10.1364/OL.42.001512.

DOI:10.1364/OL.42.001512

Abstract

A new class of partially coherent light sources is introduced. At the source plane, they exhibit perfect coherence along any annulus that is concentric to the source center. Between two points at different distances from the center, coherence can be partial or even vanishing. Such sources can be synthesized by using a generalized form of van Cittert-Zernike theorem where axial sources are used. Beams radiated by this type of source are analyzed at the source plane and upon free propagation for some simple cases.

摘要

引入了一类新型的部分相干光源。在源平面上，它们沿任何与源中心同心的圆环呈现出完美的相干性。在距离中心不同距离的两点之间，相干性可以是部分的甚至为零。这种光源可以通过使用范西特 - 泽尔尼克定理的广义形式来合成，其中使用轴向光源。对于一些简单情况，分析了由这类光源在源平面以及自由传播时所辐射的光束。