Electrostatic Mode Coupling of Beat-Excited Electron Plasma Waves

Saturation of beat-excited plasma waves by electrostatic mode coupling.

Coupling between electron plasma waves in laser–plasma interactions*

ALagrangian fluid model ~cold plasma, fixed ions! is developed for analyzing the coupling between electron plasma waves. This model shows that a small wave number electron plasma wave (v2 ,k2) will strongly affect a large wave number electron plasma wave (v1 ,k1), transferring its energy into daughter waves or sidebands at (v11nv2 ,k11nk2) in the lab frame. The accuracy of the model is checked ...

Electrostatic Solitary Waves in Multicomponent Nonthermal Plasma

A systematic investigation has been made of ion-acoustic solitary waves in plasma consisting of cold positively and negatively charged ions, as well as nonthermal electrons. The basic features of the solitary waves are investigated by using the reductive perturbation method, which is valid for the small but finite amplitude waves. Computational investigations have been performed to examine the ...

Controlled optimization of mode conversion from electron Bernstein waves to extraordinary mode in magnetized plasma.

In the CDX-U spherical torus, agreement between radiation temperature and Thomson scattering electron temperature profiles indicates approximately 100% conversion of thermally emitted electron Bernstein waves to the X mode. This has been achieved by controlling the electron density scale length (L(n)) in the conversion region with a local limiter outside the last closed flux surface, shortening...

Propagation of Electrostatic Waves in an Ultra-Relativistic Dense Dusty Electron-Positron-Ion Plasma

The nonlinear propagation of waves (specially solitary waves) in an ultra-relativistic degenerate dense plasma (containing ultra-relativistic degenerate electrons and positrons, cold, mobile, inertial ions, and negatively charged static dust) have been investigated by the reductive perturbation method. The linear dispersion relation and Korteweg de-Vries equation have been derived whose numeric...