Influence of temperature on terahertz waves propagating in magnetized plasma

Abstract

Abstract The transmission characteristics, including reflectivity, transmissivity and absorptivity, of terahertz waves propagating in high temperature magnetized plasmas are studied numerically and theoretically. The numerical results indicate that the transmission characteristics will be influenced by the wave frequency, electron temperature, plasma density, collision frequency, thickness of plasma and the external magnetic field. It is found that the strength of magnetic field distinctly affects the transmissivity trough and absorptivity peak when terahertz waves penetrate in the plasma. When the electron temperature is higher than 10 keV, the influence of temperature can be observed obviously. These results maybe provide a significative theoretical basis to a certain extent, for the ‘blackout’ communication.