.png){kind=icon}
.png){kind=icon}
Return
Singularities in the flying electromagnetic doughnuts
.png){kind=icon}
OA
AI
A
N
V
M
N
DOI：10.1515/nanoph-2019-0101.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Flying doughnuts (FDs) are exact propagating solutions of Maxwell equations in the form of single-cycle, space-time non-separable toroidal pulses. Here we review their properties and reveal the existence of a complex and robust fine topological structure. In particular, the electric and magnetic fields of the FD pulse vanish across a number of planes, spherical shells and rings, and display a number of point singularities including saddle points and vortices. Moreover, the instantaneous Poynting vector of the field exhibits a large number of singularities, which are often accompanied by extended areas energy backflow.
Keywords:
toroidal pulse
toroidal electrodynamics
flying doughnut
topology
vortex
singularities
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
6.6
Papers:
2.9K
Citations:
1.6W