Phase vortices from a Young's three-pinhole interferometer.
Phase vortices from a Young's three-pinhole interferometer.
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DOI：
10.1103/physreve.75.066613
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发表时间：
2006-12
期刊：
影响因子：
--
通讯作者：
G. Ruben;D. Paganin
中科院分区：
文献类型：
--
作者：
G. Ruben;D. Paganin
本文分析了由三个单色点源任意排列的复球面波在远场产生的相位涡旋。与三个干涉平面波的情况相比，其中产生无限延伸的涡格，球形源产生有限数量的相位涡。涡核位置的解析表达式的开发和示出有一个方便的表示在一个离散的参数空间。我们的远场分析可以映射到相干照明的杨氏干涉仪的情况下，其中屏幕被三个而不是两个针孔刺穿。
An analysis is presented of the phase vortices generated in the far field by an arbitrary arrangement of three monochromatic point sources of complex spherical waves. In contrast with the case of three interfering plane waves, in which an infinitely extended vortex lattice is generated, the spherical sources generate a finite number of phase vortices. Analytical expressions for the vortex core locations are developed and shown to have a convenient representation in a discrete parameter space. Our far-field analysis may be mapped onto the case of a coherently illuminated Young's interferometer, in which the screen is punctured by three rather than two pinholes.