Scattering of electromagnetic waves by a rotating electron-plasma column

The scattering of a plane electromagnetic wave by an electron-plasma column rotating around its axis in the presence of a static magnetic field is discussed on the basis of Maxwell's equations and the constitutive relations for a rotating electron plasma derived from the electron-theoretical consideration. For two special cases, that where a plane wave is normally incident upon a rotating electron-plasma column without axial drift and that where a plane wave is obliquely incident upon an electron-plasma column rotating with the Larmor frequency and drifting in the axial direction, the scattering properties of a rotating electron-plasma column are investigated in detail with the aid of numerical examples. From the numerical examples for the backscattering cross section and the scattering pattern, it is found that there appear various interesting phenomena that are characteristic of a rotating electron-plasma column.