Nonlinear Coupling of Lower-Hybrid Waves at the Edge of Tokamak Plasmas
- 25 May 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (21) , 1398-1401
- https://doi.org/10.1103/physrevlett.46.1398
Abstract
We solve the steady-state coupling problem of lower-hybrid waves excited by a wave-guide array. The theory takes into account the ponderomotive density modulation to all orders in the electric field amplitude but assumes that the nonlinear effects are important only along the magnetic field lines. The important new feature is the appearance of a resonant term in the transverse refractive index, which is due to the finite size of the excitation structure. A calculation for two waveguides, linear density profile, and constant temperature is presented.Keywords
This publication has 10 references indexed in Scilit:
- Adiabatic theory for a single nonlinear wave in a Vlasov plasmaPhysical Review A, 1980
- Generation of ponderomotive craters during high power microwave irradiation of plasmaPhysics Letters A, 1980
- Nonlinear coupling of the slow wave structure with the lower-hybrid waves near the plasma surfacePlasma Physics, 1980
- Wave-plasma coupling at the lower hybrid frequencyPhysics of Fluids, 1979
- Lower-Hybrid-Wave Heating in the Alcator-TokamakPhysical Review Letters, 1979
- Excitation of lower hybrid waves in a finite plasmaPhysics of Fluids, 1979
- Kinetic Theory of the Ponderomotive Effects in a PlasmaPhysical Review Letters, 1979
- Waveguide array excitation of lower hybrid fields in a tokamak plasmaNuclear Fusion, 1978
- Coupling of lower-hybrid radiation at the plasma edgePhysics of Fluids, 1977
- Slow-wave launching at the lower hybrid frequency using a phased waveguide arrayNuclear Fusion, 1976