Numerical Research of Mode Conversion in an Inhomogeneous Plasma

摘要

The linear mode conversion of electromagnetic waves in the hot, unmagnetized inhomogeneous plasma is studied numerically for different density profiles, and the dependence of the absorption coefficient on the incident angles and the wave frequencies are obtained for different electrons' temperature. The results show that the shapes of the density profiles and the electron's temperature create a certain effect on the coefficients of absorption, which reaches its peak value (about 50%) for appropriate parameters. Effective absorption occurs in a limited range of parameter q.