Microwave whirlpools in a rectangular-waveguide cavity with a thin ferrite disk
Classical Physics
2009-11-13 v1 General Physics
Abstract
We study a three dimensional system of a rectangular-waveguide resonator with an inserted thin ferrite disk. The interplay of reflection and transmission at the disk interfaces together with material gyrotropy effect, gives rise to a rich variety of wave phenomena. We analyze the wave propagation based on full Maxwell-equation numerical solutions of the problem. We show that the power-flow lines of the microwave-cavity field interacting with a ferrite disk, in the proximity of its ferromagnetic resonance, form whirlpool-like electromagnetic vortices. Such vortices are characterized by the dynamical symmetry breaking. The role of ohmic losses in waveguide walls and dielectric and magnetic losses in a disk is a subject of our investigations.
Cite
@article{arxiv.0707.1236,
title = {Microwave whirlpools in a rectangular-waveguide cavity with a thin ferrite disk},
author = {E. O. Kamenetskii and Michael Sigalov and Reuven Shavit},
journal= {arXiv preprint arXiv:0707.1236},
year = {2009}
}