Singularities in the flying electromagnetic doughnuts
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
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.
|Number of pages||7|
|Publication status||Published - 22 Jun 2019|
- toroidal pulse, toroidal electrodynamics, flying doughnut, topology, vortex, singularities