Extraordinary plasma wave
= Extraordinary plasma wave
{title2=$n^2=RL/S$}
= X-mode
{c}
{synonym}
For propagation perpendicular to the equilibrium <magnetic field>, this <plasma> <wave> has its <electric field> perpendicular to that <magnetic field> and generally both parallel and perpendicular to its <wavevector>. Its <dispersion relation> is $n^2=RL/S$, using the <magnetized cold-plasma dielectric tensor> conventions $R=S-g$, $L=S+g$.