Waves And Negative Refraction In Magnetized Plasma With Ferrite Grains

This thesis describes that some electrodynamical properties of left-handed media andrnexperiments realize to allow these metamaterials. The dispersion properties of a materialrnis controlled by both dilectric permittivity and magnetic permeability tensors. Therndispersion of the permittivity is caused by electron-ion plasma and the dispersion of permeabilityrnis caused by the high frequency magnetization of the ferromagnetic grains. Thernpropagation of high frequency EMWs in the low temperature magnetized plasma with ferromagneticrngrains (MPFG) is analyzed. Our MPFG system becomes transparent for thernwaves that cannot propagate in conventional magnetized plasma, which is the dispersionrnof permeability is zero. It is shown that the refractive index of the extraordinary wavernpropagating along the external magnetic eld through MPFG can be negative and thernphase velocity also negative in the vicinity of !c. The strong dispersion of the refractivernindex and the group velocity results in the spreading of the wave packets, which propagaternwith velocity much smaller than the speed of light

Get Full Work

Report copyright infringement or plagiarism