Polychromatic polarization singularities.
Polychromatic polarization singularities.
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DOI：
10.1364/ol.28.002150
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发表时间：
2003-11
期刊：
影响因子：
3.6
通讯作者：
I. Freund
中科院分区：
文献类型：
--
作者：
I. Freund
椭圆偏振只能出现在单色光场中。在多色矢量场中，偏振是李萨如图形，但只有在公度场中，图形才有明确的形状;在其他场中，形状是不确定的。尽管如此，我表明，一个给定的近轴多色矢量场有一个相干椭圆场与它相关的，包含偏振奇点和固定点，是替代相应的临界点的父光场。
Elliptical polarization can appear in only monochromatic optical fields. In polychromatic vector fields the polarization is a Lissajous figure, but in only commensurate fields do the figures have well-defined shapes; in other fields the shapes are undefined. Nonetheless, I show that a given paraxial polychromatic vector field has a coherency ellipse field associated with it that contains polarization singularities and stationary points that are surrogates for the corresponding critical points of the parent optical field.