The energy flow structure during the scattering of a plane electromagnetic wave by a magnetized plasma cylinder at volume plasmon resonances

摘要

The scattering of an obliquely incident H-polarized plane electromagnetic wave by a magnetized plasma cylinder is studied. It is assumed that the cylinder is located in free space and aligned with an external static magnetic field. The emphasis is placed on the case where the angular frequency of the incident wave coincides with one of the volume-plasmon resonance frequencies of the cylinder. The spatial structure of the energy flow patterns in the near zone of the scatterer is analyzed and the location of the regions with a greatly enhanced magnitude of the time-averaged Poynting vector is determined. It is shown that the sign reversal of the energy-flow component that is parallel to the cylinder axis can occur both at the surface of the cylinder and in its inner region.