Main and higher mode absorption dependencies of open semiconductor plasma waveguide on the percentage of heavy holes

Abstract

In this work are examined the phase and attenuation constant of open magnetoactive p-Ge rod waveguides in the wide frequency range. Our algorithm allows analyzing the very high waveguide losses. Dispersion characteristics of p-Ge with two component hole charge carriers waveguide are calculated when the ratio of heavy holes concentration in the material is equal to 10%, 40% and 80% of the total free carrier concentration. Dispersion characteristics of the main helicon and eight higher helicon modes are presented here. There are the degeneration and the transformation of higher hybrid modes at some heavy holes concentrations. The waveguide broadbandwidth can be considerably extended due to the fact that the losses of the higher parasitic modes are considerably larger in the comparison to the main mode loss at the certain heavy holes concentration.