[복사열전달] Tenuous Plasma

The dispersion relation for EM waves in a plasma is given by ω2(k) = ω2p + c2k2 ω2p = 4πNe2/m where ωp is the plasma frequency. (a) For ω > ωp, find refractive index n of the plasma.

Is the n greater than or less than 1? Provide your reasoning.

(b) For ω < ωp, describe quantitatively the behavior of an EM wave in the plasma. (c) Find electrical conductivity as a function of ω.

(a) (b) (c)...