Plasma heating near ion cyclotron resonance harmonic layer

A survey of results is presented for plasma heating and wave propagations for incident waves with frequencies matching ion cyclotron resonance harmonics. It is assumed that outside the resonance layer geometrical optics is applicable, and the plasma is stratified perpendicularly to the equilibrium magnetic field. A boundary layer expansion is used near the resonance layer. Numerical results for the case of pure third and fundamental resonances are given. Ion-ion hybrid resonance case with the minority species at fundamental resonance is also presented