The singularities of light: intensity, phase, polarisation

被引：21
作者：
Berry M.V. [1 ]
机构：
[1] H H Wills Physics Laboratory, Bristol
来源：
Light: Science and Applications | 2023年 / 12卷 / 01期
关键词：
Geometrical optics;
D O I：
10.1038/s41377-023-01270-8
中图分类号：
O43 [光学]; T [工业技术];
学科分类号：
070207 ; 08 ; 0803 ;
摘要：
In modern optics, light can be described at different levels: as rays, as scalar waves, as vector fields, and as quantum fields. In the first three levels, there are singularities—characteristic features, useful in interpreting phenomena at that level. In geometrical optics, the singularities are ray caustics; in scalar wave optics, they are phase singularities (=wave dislocations= wave vortices = nodal manifolds); in vector waves, they are singularities where the polarisation of light is purely linear or purely circular. The singularities at each level are dissolved at the next level. Similar singularities occur in all waves, not just light. © 2023, Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), CAS.
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